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Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW

Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW

Item # EQ37121ET

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Weight Distribution

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EQ37121ET - Allows Backing Up Equal-i-zer Weight Distribution
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Product Images

In Use/Installed

Customer Photos


  • WD With Sway Control
  • 900 lbs
  • 1000 lbs
  • 1100 lbs
  • Equal-i-zer
  • Fits 2 Inch Hitch
  • Allows Backing Up
  • Shank Not Included
  • Prevents Sway
  • Electric Brake Compatible
  • Surge Brake Compatible
  • Heavy Duty
Steel-on-steel friction works to prevent and correct trailer sway in this unique weight distribution system. Sway control brackets ensure that your trailer stays in line with your tow vehicle. Shank sold separately. 2-5/16" Hitch ball included. Lowest Prices for the best weight distribution from Equal-i-zer. Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW part number EQ37121ET can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (365)
  • Q & A (21)
  • Videos (2)
  • Photos
  • Why etrailer?

Equal-i-zer Weight Distribution - EQ37121ET

Steel-on-steel friction works to prevent and correct trailer sway in this unique weight distribution system. Sway control brackets ensure that your trailer stays in line with your tow vehicle. Shank sold separately. 2-5/16" Hitch ball included.


Features:

  • Evenly distributes weight over axles of tow vehicle and trailer for stability and control
    • Creates a level ride for both tow vehicle and trailer
  • Integrated 4-Point Sway Control limits side-to-side movement
    • Brackets keep spring bars in place for a rigid system that holds trailer in line
    • Steel-on-steel friction helps to minimize sway caused by winds or sudden maneuvers
    • No lift chains - eliminate unwanted movement
  • Unique design makes system compatible with surge-type brake actuators
  • Spring bars flex for a controlled, even ride
    • Constructed of chromoly steel for superior dexterity and spring
  • No-drill, clamp-on brackets can be adjusted along the trailer frame
    • Accommodates frame-mounted items such as gas tanks, battery boxes, toolboxes, or generators
  • Desired tilt is achieved with traditional washer design
    • Add or remove washers from spacer rivet to tilt head up or down
  • Dipped steel construction is durable and corrosion resistant
  • Snap-up lever eases installation by reducing lifting required by trailer jack
  • System includes head assembly, spring bars, sway control brackets, hitch ball, lift handle, and all necessary hardware
    • Adjustable shank sold separately
    • 1-7/8" Thin walled socket (EQ70-00-4800 - sold separately) recommended for hitch ball installation
  • Made in the USA


Specs:

  • Tongue weight: 800 lbs - 1,200 lbs
  • Gross towing weight: 12,000 lbs
  • Ball size: 2-5/16"
  • Fits: 2" x 2" trailer hitch receivers rated for use with weight distribution systems
  • Sway control bracket positioning: 27" - 32" back from center of coupler
  • Maximum trailer frame height: 6"
  • Spring bar dimensions: 36" long x 1-1/2" wide
  • Limited lifetime warranty


Included w/ SystemRequired - Sold SeparatelyOptional Add-Ons

90-00-1201 Equal-i-zer Weight Distribution Hitch

  • Weight Distribution Head
  • 2-5/16" Chrome Hitch Ball
  • 2 Sway Control Brackets
  • 2 Spring Bars
  • Snap-up Lever
  • Spacer Rivet and Washers
  • Necessary Installation Hardware
  • Adjustable Shank
  • Thin Walled Socket for Installation of Hitch Ball

Weight Distribution Diagram

Create a more stable ride for your tow vehicle and trailer with a weight distribution hitch. Adding spring bars to your towing system applies leverage, which transfers the load that is pushing down on the rear of your vehicle to all the axles on both your tow vehicle and your trailer, resulting in an even distribution of weight throughout. The result is a smooth, level ride, as well as the ability to tow the maximum capacity of your hitch.



Selecting a Weight Distribution System

The tongue weight rating is the most important factor in determining which size weight distribution system you should use. If the bars of the system you choose are rated too high for your setup, they will create a rigid ride, which can result in a bouncing trailer. If, on the other hand, the bars are not rated high enough, the system will be unable to properly distribute the weight, rendering it virtually useless.


To determine the proper weight rating for a weight distribution system, you must first determine your trailer's tongue weight. Then add to that the weight of the cargo behind the rear axle of your tow vehicle. These two measurements make up the tongue weight rating for a weight distribution system.


Features of the Equal-i-zer

Head Tilt Adjustment

Controlling head tilt with traditional washer method

The Equal-i-zer weight distribution system uses the traditional washer-style adjustment method to achieve the perfect tilt. Controlling the head tilt helps you to fine-tune the leverage on your entire system, making it easier to install and hook up the spring bars. To adjust the tilt, simply slide washers onto the spacer rivet and insert the rivet into the head assembly. To increase the angle, add a washer. To reduce the angle, remove a washer. Most setups take four to six washers to achieve the proper height. Once you get the desired tilt, insert the shank bolts to secure the head to the shank (sold separately) and then tighten it in place.



Construction of Spring Arms

The Equal-i-zer spring bars are not made of traditional spring steel. Rather, they are constructed of a chromium-molybdenum alloy steel. Chromoly steel has a high tensile strength for extreme durability. It also features excellent dexterity, which allows it to give as required and then return softly back to its original form. This pliability is important in minimizing trailer bounce while still ensuring that the weight of your rig is adequately distributed.


Fixed Sway Control Brackets

Installation of Sway-Control Brackets

The unique sway control brackets of the Equal-i-zer are easy to install and simple to use. They clamp onto your trailer frame and conveniently adjust to a position anywhere between 27 inches and 32 inches back from the coupler. These brackets provide the attachment points for the weight distribution spring bars. To position the spring bars during hookup, simply use the included snap-up lever to lift each bar into place on the L-shaped brackets. Then secure the bars in place with the included L-pins and clips.


Equal-i-zer Hitch 4-Point Sway Control

The Equal-i-zer weight distribution system works to stop trailer sway before it begins. This is achieved through the rotational friction that is present in the weight distribution hitch itself. Within the system head, the downward pressure that is placed on the hitch ball by the trailer is combatted by the upward pressure exerted by the spring bars that are mounted in the sockets. This upward force is placed on the spring bars on either side of the system, creating the rotational friction that, essentially, forces your trailer in line. This type of friction is responsible for two points - one on either side of the trailer - of the 4-Point Sway Control. To ensure that enough tension is present, make certain that the socket bolts in the head assembly are torqued to at least 45 foot-pounds.


Points within the Equal-i-zer system where upward and downward forces interact to create rotational friction

The other two points of sway control are created by the steel-on-steel friction that occurs when the spring bars slide within the L-brackets that are mounted on the trailer tongue. Most traditional weight distribution systems have spring bars that are suspended by chains. Although this ensures that the system is not so rigid as to create bounce in the trailer, it also allows a good deal of side-to-side play in the system. Letting the spring bars hang freely minimizes the rotational friction described earlier. It also eliminates your system's ability to create the type of direct friction that has been shown to be so effective in limiting trailer sway.


This direct friction that is applied to the spring bars in the Equal-i-zer system helps to stop sway once it has begun. The concept is similar to the way in which an add-on friction sway control device functions. When each spring bar moves forward or backward, or side to side, it rubs along the bracket, creating friction. The resistance created by this action limits the movement of the spring bar, thus preventing further side-to-side movement of the trailer.


Most add-on units feature some sort of friction material similar to that used in automotive brakes. But the Equal-i-zer uses direct steel-on-steel contact to create resistance. This is the same sort of friction that is used with locomotives that pull loaded railcars weighing tons. No additional materials are needed. The steel will outlast any of those other materials, providing an extremely durable, functional sway control system.



EQ37121ET Equalizer Weight Distribution Hitch with Hitch Ball, without Shank - 12K



EQ37121ET Installation InstructionsInstallation Details EQ37121ET Installation instructions


Video of Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Equal-i-zer Weight Distribution - WD With Sway Control - EQ37121ET Review

Speaker 1: Today we're taking a look at an Equalizer Weight Distribution System with Four Point Sway Control. Now a weight distribution system creates a more stable ride for your tow vehicle and your trailer. This unit features a 2 5/16" hitch ball. Has a gross towing weight capacity of 12,000 pounds and it's designed for trailers that have tongue weight of 800 to 1,200 pounds. It fits a 2" x 2" trailer hitch receiver that's rated for use with weight distribution. The adjustable shank or the weight distribution shake is sold separately so it's not included with this kit.

If you need one you can find them at etrailer.com.Now adding spring bars to your towing setup applies leverage which transfers the load that is pushing down on the rear of your vehicle to all the axles on both your tow vehicle and your trailer. This results in an even distribution of weight throughout your towing set up. It results in a smoother ride, a level ride as well as having the ability to tow the maximum capacity of your hitch. This system has the integrated four point sway control that works to stop trailer sway before it begins. It's not an add on feature, it's all built in.The head is responsible to create two points of sway control using what's known as rotational friction.

So what that means is there's actually downward force placed on the hitch ball that battles the upward force, or pressure created by the spring bars. So that upward force is placed on the spring bars on both sides of the system and that creates the rotational friction that works to force your trailer to stay in line all the time. The other two points of sway control are created by the steel on steel friction that occurs when the spring bars slide within the L brackets that are mounted on the trailer tongue. By the unique design makes the system compatible with surge type brake actuators.The spring bars flex for a control even ride. They are constructed of a specialized steel for superior dexterity and spring.

This pliability is important in minimizing trailer bounce. It also has the no drill clamp on brackets that can be adjusted along the trailer frame, they don't take up much space above the frame of the trailer so that way it accommodates well for frame mounted items such as gas tanks, battery boxes, tool boxes, generators and so on. When it comes to tilting your head assembly the desired tilt is achieved with the traditional washer and spacer rivet design, so basically that spacer rivet installs in a slot underneath the hitch ball and then you add or remove washers from the rivet to tilt the head up or down and fine tune the leverage on your entire system.We're looking at a nice durable steel construction. It is a dipped steel which is corrosion resistant. The snap up lever is included to ease installation of the spring bars by reducing the amount of lifting by the trailer jack.

Simple installation. It comes with detailed installation instructions to help walk you through that whole process, step by step. It also comes with a 5/8th diameter hitch pin and clip to secure your weight distribution shank in your hitch. It comes with all the necessary hardware you need to get it installed. So even though it doesn't come with your weight distribution shank, it does comes with the hardware to get it attached to the head assembly.Also on the underside here we have a set bolt that can be tightened to take out any wobble or play that we might have between the head assembly and the weight distribution shank. Now your sway control brackets need to be positioned 27" to 32" back from the center of your coupler. These will fit a maximum trailer frame height of 6" and it is adjustable to accommodate different size frames out there.The product is made in the USA and it's covered with a limited lifetime warranty. And that's going to do it for today's look at the Equalizer Weight Distribution System with the Integrated Four Point Sway Control.


Customer Reviews

Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW - EQ37121ET

Average Customer Rating:  4.9 out of 5 stars   (365 Customer Reviews)

Steel-on-steel friction works to prevent and correct trailer sway in this unique weight distribution system. Sway control brackets ensure that your trailer stays in line with your tow vehicle. Shank sold separately. 2-5/16" Hitch ball included.

- EQ37121ET
by:

Installed and tried out the Equal-i-zer, it performed great, no sway at all. 371424



- EQ37121ET
by:

This is one strong hitch. Assembly and adjustment instructions are well written and easy to follow but you'd better have the right tools and a level, smooth parking lot to do the work. The instructions do not mention how stiff the arm sockets will be when the hitch is being assembled and do not cover lubrication until later in maintenance. Be sure to get the correct height/drop shank. I used the Equal-i-zer "Find the right shank" wizard on their website and came up short (literally) so had to order a second, longer one. etrailer was great about taking the short shank back as long as it hadn't been used (installed and adjusted on vehicle was OK, just not having actually towed anything). etrailer also wasted NO time in getting my parts to me--three days via Big Brown to a small town in Idaho. USPS can't get a letter delivered that far away any quicker (not bashing USPS by any means). 564812



- EQ37121ET
by:

The 12k Equalizer Weight Distribution Hitch is an AWESOME product and did all it said it would do. Bombed hills, kept my ride steady, and most important kept my family safe on the SoCal/NorCal roads more than 28 hrs of driving north to the redwoods @ Jedidiah Smith then back south again. Next trip coming up quick in a week getting ready for another adventure. With the new EQ WDH set up is a snap! Thank you etrailer Team for all the help and great pricing! See you on the road. 413546



- EQ37121ET
by:

I purchased a trailer used over ten years ago. It was a 26 foot travel trailer approximately 7500 lbs. It was old and heavy. The previous owner had purchased this same equilizer hitch and gave it to me with trailer. It was on there since day one every time I towed so I never realized how well it benefited me. I sold that trailer some years back. Last year I bought a new travel trailer. 26 foot but only 6000lbs. I bought a harbor freight weight distribution hitch and installed it at rv dealer. I worked with the guys to ensure it was installed correctly. Well I can tell you the combo was the most dangerous rig I ever operated. I made adjustments over and over again but never felt safe. At that piont I decided it must be the cheap harbor freight hitch and started looking for a new hitch. I came across the equilizer and remembered how well and stabil that rig felt. So I sized the correct one and purchased it. I installed it as per manufacturer instructions. Right away it was a million times better. It took some adjustments but got it perfect. In my opinion it one of the best and good price too. Easy to use and adjust . Nothing fancy but a good old design that works quiet and safe. I have traveled at over 85 mph by accident because it's all so smooth. 388383


Comments

I bought a heavier truck in past year. Im using same hitch and trailer. I had to make a height adjustment but other than that the hitch is still delivering the same great stable service.

Tom - 06/24/2018

40145

- EQ37121ET
by:

This is the second Equalizer hitch I have had. I needed to replace my first one as I bought a larger camping trailer and the older equalizer didn't have the proper tongue weight rating. We drive a 2011 Tundra TRD 4x4 with a 5.7 liter. We pull a 2017 mallard M292 by hartland that is 34'-9" with a height of 10''- 4" weight is 6905 lbs. Dry with a tongue weight of 725 lbs. Living in the mountains of Western North Carolina I have many curves and tractor trailers to deal with on I-40. Everywhere we go is down the mountain and to return home is always up hill. At no time have I ever had my trailer do any swaying. Leveling issues are never a problem with my Equalizer hitch. I believe it is the best hitch on the market, hands down. Having the wife happy and relaxed and not thinking about the trailer while on long hauls keeps me calm and focused. It took about 2 hours to install and adjust. etrailer has done a great job once again and Molly was the best 452533



- EQ37121ET
by:

We just moved from a light weight Lance to a much heavier Arctic Fox. I was inclined to use the same Fastway hitch but most of the AF owners recommended the Equalizer. I had to order the shank separately to get the right size (thanks Ford) but it all came in two (very) heavy boxes. Assembly was fairly straight forward and adjustments are easy. Quality wise, the EQ hitch appears better built than the Fastway and I really like the heavier duty construction of the parts that mount on the tongue of the trailer. The tension bars are easier to manage being straight but this also means that you have extra little parts to lose so we'll be packing a spare kit. The hitch portion itself is a heavy duty affair, much more so than I had imagined. Quality of materials and fit and finish are first rate and with the extra holes, I can use a cable lock to secure the hitch when it's off the truck. As always, we got the best price on etrailer and shipping was very quick. This is definitely a "buy once cry once" decision and etrailer's support made this an easy purchase. 469404



- EQ37121ET
by:

The 12,000 pound Equal-i-zer is my third weight distribution hitch and by far the most effective. It is heavy and cumbersome but once on the road you forget that the trailer is behind you. I have had no problem with cross winds or passing 18 wheelers. I would buy it again. The trailer is winterized and in deep snow so no photos. Bill A. 604136



- EQ37121ET
by:

Great WDH. There is a little trial and error getting it set up but the instructions are easy to follow. Don't forget to grease the moving parts on the head and buying plastic jackets for the brackets greatly reduces noise. Very stable towing. 578701


Comments

The jackets do indeed quiet the hitch to a degree, but be aware that using them can diminish the effectiveness of the sway control. The metal-on-metal contact is what provides the sway control, and the jackets diminish that.

-- Mike L - 10/30/2018

45233

- EQ37121ET
by:

shipment was very quick , everything looked great, very satisfied with etrailer, trailer had a lot of sway with previous hitch, after installation and a quick trial run everything seemed better, time will tell 549665



- EQ37121ET
by:

Arrived promptly and was in great shape all of the parts seam to be there 472239



- EQ37121ET
by:

Works well with the 18" shaft that I pu rchased. 454768



- EQ37121ET
by:

Great people to work with and product was "spot on",,, 437758



- EQ37121ET
by:

The Equal-i-zer works great! I've only used it on 3 trips, but have put about 1,500 miles on it. I have no sway whatsoever. It's also VERY easy to hook up once you get it all assembled. It is a little bit noisy, but I don't mind that much. They make little pad that helps quiet the squeaking so I may try that and see how that works. 426959



- EQ37121ET
by:

I did alot of reading on equalizing and sway control hitches and I am very happy with my choice on this one. Great product and good price. I will be doing business with etrailer.com again. Thanks 396491



- EQ37121ET
by:

I ordered this Equalizer 4 point anti sway system without shank and added the 2 1/2 inch shank to fit properly on my new tow vehicle. All parts arrived in Canada within 5 days. I am very particular about setup. From the start of disassembling my old system to driving away with the new setup was over 3 hours. But it tows beautifully. Something I never said about my old spring bars with chains. This is the first time ordering from etrailer. They do a good job. 395701



- EQ37121ET
by:

Received item on the date it was suppose to arrive 379314



- EQ37120ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


We made a trip to the Pacific Northwest from Arkansas and I have to say, the hitch performed perfectly. Even in a high wind, which is common in Wyoming and the plain states there was no problem keeping a straight line going down the road. One time, when I wasn't paying attention and ran off onto the shoulder of the road, the trailer didn't sway at all but kept straight and allowed me to return to the road without incident. I would recommend this hitch to anyone pulling a trailer of any significant weight behind them. I have a 33 foot RV and pulling it with a 2015 Chevy Silverado 1500. 474796


Comments

Its been over a year since I purchased my Equalizer hitch system and I am completely satisfied with it. Occasionally I have to spray some lubricant on the pivot points on the receiver end to keep the noise down but other than that It works as advertised and I would again rate it 5 stars.

Ronald - 02/11/2019

49388

- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Packages received last night. Have not yet opened them as I will have dealer open and assemble when my new trailer is delivered, probably next week. Great service from etrailer and Crystal. 456044


Comments

Great! Best hitch I’ve used.

Charles K - 11/30/2018

46215

- EQ37060ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Love It Put over 5000 miles towing not one bit of trouble 4000 LB 21 RBS Livin Lite Pulled by 2015 Toyota Tacoma 592225



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Good product at a great price. Shipping was free and quick. As always with etrailer it was an excellent experience, I highly recommend them! 541572



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


product was delivered quickly with regular shipping. The hitch was easily installed using the simple instructions that came with it. overall and wonderful experience with ordering and installation. Thanks, James 302965



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


I'm towing a 35' windjammer and this hitch work wonders. I had purchase another brand and had control problems since day one. the equalizer makes this travel trailer behave. Should have bought it first. 565798



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Pics of my sway setup 436811



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


From my limited experience with the hitch, it appears to be very high quality. Have not had it out on a long trip yet, but did do a 20 mile road test with speeds up to 70mph and it was very stable. It is on a Toyota Tundra 5.7 and is pulling a 23.5 foot toyhauler that probably weighed around 6500 lbs. at the time of my short road test. 427957



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Ashley was very knowledgeable and helpful with my purchase, Products arrived Sooner than expected and as promised, I have used etrailer in the past and will continue to use them. 302573



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


A LITTLE OVER A YEAR LATER THIS HITCH SYSTEM IS STILL PERFORMING WELL. THE BRACKETS THAT BOLT TO THE FRAME OF THE CAMPER ARE SHOWING SMALL SIGNS OF WEAR BUT NOTHING TO BE CONCERNED ABOUT. I WOULD BUY THIS HITCH SYSTEM AGAIN IF I NEEDED TO ITS A GOOD SYSTEM. 516816



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


From my limited experience with the hitch, it appears to be very high quality. Have not had it out on a long trip yet, but did do a 20 mile road test with speeds up to 70mph and it was very stable. It is on a Toyota Tundra 5.7 and is pulling a 23.5 foot toyhauler that probably weighed around 6500 lbs. at the time of my short road test. 427958



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


I bought this hitch because the dealer I purchased my new trailer from undersized the new Equal-i-zer hitch I purchased along with the trailer. Even though I used the hitch for the last year I finally decided I had to upgrade it because the spring bars were just not quite adequate keeping the trailer level and transferring the weight. My experience with the Equal-I-zer hitch has been satisfactory because of ease of hooking up and unhooking. The integrated friction control has worked very well and the 4 point design makes backing up without having to unhook a friction control device is convenient. You can leave the spring bars on when backing up. I am quite happy with the Equal-i-zer brand and would recommend this hitch to anyone in the market for a new hitch. 575202



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


I must say that this isn't my first equal-i-zer hitch. Ive been a owner since 2008. I just needed to go up to a bigger size due to a bigger trailer, So there were no surprises. I knew exactly what I was buying. Just as expected, like my previous smaller 1000/10000 lb version, Excellent quality, simple set-up, and works great. As always, etrailer customer service is top notch. 351054



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


The weight distribution hitch is what I expected. The only problem was some of the parts were missing. I called the manufacturer and they agreed with me that they had been unintentionally left out. They're sending me those parts. 440192



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Honestly a great purchase. Read a ton of reviews before buying. Had the traditional style weight distribution hitch with sway bar attachment before, and I'll definitely say that I have no intentions of going back! The sway control is absolutely great. Hauled a 30' travel trailer from Atlanta, GA to upstate New York and back with absolutely no sway issues whatsoever. If set up correctly, it should do the trick. I will say, however, that it can be slightly loud at low speeds, but is just something to get used to. Would recommend this hitch to anyone. Worth the investment. 338779



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Great weight distribution system! Easy to install and adjust. I've used it for over a year now and find it quick and easy to use. However, I quickly lost the black 'persuasion bar' so paint yours red for better visibility when you set it down (although you'll rarely need it). 488981



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Product works as advertised. We pull a 10,000 lb 24' catering trailer that the weight distribution is far from even with convection oven, 2 door commercial refrigerator and more. We were having severe swaying problems on the highways. Bought this sway control and it stopped all swaying. Before I couldn't hit 55mph without uncontrollable sway and now there is no speed limit that causes sway. Very easy to hook up, follow directions and its a no brainer. After 1 year I still use it every time and seems to work just as well. Re-adjusted for a new truck in minutes. Doesn't interfere with any wire or chains and we have 3 camera system along with custom frame platform on front of trailer to support 2- 100 lb propane tanks and a generator and was still easy to fit on and works great. 517465



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Cuts down sway considerably. Noisy on turns because it uses friction on bars to control the sway. Definatly worth the price but not as good as a Hensley. Would I buy again, yes. Hook up is a little more physical getting the friction bars onto the L brackets but easier once you learn not to put full weight of trailer on the ball until you position the friction side bars on the brackets. Own several trailers and this purchase allows me to move to trailer needed by just buying an extra set of L brackets for each trailer. Seems to be well built and no problems after a year of use. Glad I paired my purchase with power post. This helps find the sweet spot when hooking up. 558212


Comments

If you hitch up the trailer, and use the trailer jack to raise both the front of the trailer and the rear of the tow vehicle by a few inches, youll find that enough of the tension is taken out of the system so the spring bars are easier to put in place.

-- Mike L - 08/27/2018

42871

- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


This is one slick setup. I got it tuned in perfectly on the second try. Instructions are very specific and very accurate. I found only one thing that could be better - the bolts that hold the ball mount to the receiver bar are too long, at least 1" too long. A standard socket won't fit over them to torque the nut - shorter bolts or a warning that a deep socket is needed would be nice. This seems like an anomaly, as everything else was a perfect fit. Good price, speedy delivery, as always. One caution, this thing is heavy! 283591



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


after searching multiple websites for the Equalizer 10,000lb gtw/ 1000 lb tw weight distribution and 4 point sway control hitch, E-Trailer had the best deal for the this hitch. Not only the best deal but the best price and free shipping as well. In addition E-Trailer also offered a great price pledge, if you find an equal product cheaper they will price match. When I found a cheaper unit and emailed E-Trailer they matched the cheaper price and I saved another $xx.the hitch was also shipped quickly and I received it 3 days later. Their customer service was great. they were informative, polite and quick with all parts of the transaction, including the price match refund. great, price, great service, I would recommend them and will shop with them again. 319704



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Worth every cent. We bought a 2008 26' Sun Valley Road Runner two weeks ago and immediately took it on a trip to the N. Georgia mountains behind our 2006 Silverado 1500HD. Very scary up and back with a serious sway problem that kept me from going over 50 mph. Upon returning I researched heavily on how to "prevent" sway and not just "reduce" it. Your website was extremely helpful in explaining the differences in all the products available. The product reviews were very favorable for the Equal-i-zer four point system so it made my decision an easy one. Within two days of ordering, it arrived and I just installed it today. It was very easy to set up. I took it out for a run on the interstate and WOW what a difference! I could run along at 65-70 mph with absolutely no sway and very little bounce. This is the first time I had to buy a weight distribution system and if I ever have to do it again I will certainly go back through etrailer.com. The Equal-i-zer is a great product. 281160



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


The Equal-I-zer hitch was a night and day difference. The trailer tracked perfectly with no sway what so ever, even with a very windy day. The whole unit (truck and trailer ) has become very easy to handle and docile on the road. Thank you very much. The hitch worked as advertised and is easy and quick to install. I would recommend this hitch to anyone needing an anti-sway weight distributing hitch. 260967



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


First let me say that Katherine B was very helpful and answered all my questions. I received my equalizer 4 point WD/antisway hitch in 2 days. I have it installed will do a test run this weekend and update my review. 557321



- EQ37120ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


All good with this hitch! We have pulled in high cross wind without much noticeable sway. Our truck and the trailer are level. After I learned the trick of raising the tongue a little above horizontal, I can install and remove the arms without using the cheater bar. I had to adjust the hitch after I traded trucks but it was a simple thing and took very little time. We've had people stop to look at it because they were tired of using the hitches with chain adjustment. Couldn't be happier. The support from etrailer staff is great. 387470



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


I had been using a less expensive competitor sway hitch with chains on a 27 ft. camper. I didn't think the performance of the hitch was too bad but I didn't know what I was missing. We recently purchased a 32 ft. toy hauler and I tried using the old hitch. The performance was horrible. After a recommendation on the correct hitch from etrailer and reading the reviews, I purchased the Equalizer 14,000 pound hitch. Man what a difference! The toy hauler pulls straight as an arrow. In addition, the semi trucks don't suck and push the rig all over the road when they pass. Lastly, the wife doesn't have a death grip on the door arm rest. She actually reads a book during the trip which says it all. The only complaint is that it is noisy when pulling through the campgrounds. But who really cares when it performs flawlessly on the road. Thanks so much etrailer! Walt 442118


Comments

I It’s working out great! I bought the plastic clips for the L brackets to reduce the hitch noise when entering and leaving in the campground but didn’t help. Nonetheless, still a wonderful hitch and would buy again.

Walt - 11/21/2018

45894

The jackets reduce the sound by a very small degree, but remember that metal on metal friction that creates the noise is what's providing your sway control so eliminating the noise would eliminate the performance of that function as well.

-- Mike L - 11/21/2018


- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


The Equal-i-zer hitch arrived in 3 days with free shipping. It was fairly easy to install with the proper tools. I had to find someone to tighten the ball to the hitch because it requires a 1-7/8 inch socket and needs to be torqued to about 300 lbs. Followed the directions to properly adjust the hitch for the trailer and tow vehicle and everything worked well. 277923



- EQ37120ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Although we have yet to go on a long trip with our camper, the preliminary 20 min. test proved to be a success! This product significantly improved the ride of our truck and reduced the sway to close to nothing, but the main reason I am writing this review is to draw attention to the excellent customer service I received when ordering. Sierra was extremely helpful after I called to find out my original item would not arrive by the time we needed it. She got all of the needed information from me and consulted on of the technicians to make sure we got something comparable and within the same price range. I can say enough about how well she handled a potentially stressful situation for us. Not to mention shipping only took 2 days! Great job Sierra and etrailer staff! 277057



- EQ37120ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Great product except for one thing. If you are going to sell this hitch either sell it with ball already attached or include the 1 7/8 thin wall socket with it. Could not find socket anywhere locally and finally had to dismantle Equilizer bar sockets which is no easy task , and then use regular socket that I already had, what a pain. Other than that great service and ultra fast shipping. I think I ordered it Tuesday night and had it Friday night. Great job. Will repost once all is installed and try it out. 275437


Comments

Best hitch on the market for anti sway and load equizling. Quick hook up, love it!

Jeff P - 07/23/2017

26501

- EQ37141ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


This was bought to support an F250 with a 20' BigTex equipment trailer. Prior to buying the hitch, I had a bad experience with my old truck and a non-equalizing hitch, which prompted purchasing this with the new truck. This hitch is outstanding. Very heavy duty, and the load equalizing features are excellent. The sway bars can be difficult to install when less than fully loaded, but can be swapped with different weight bars. All in all a great piece of equipment. 360679



- EQ37100ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Just bought a new Travel Trailer, had been using a Reese Weight distribution set up with traditional sway bar. This system worked well but had the tractor trailers pushing me around and on windy days I had to reduce highway speeds dramatically. So, I chose to upgrade to the Equalizer for the new TT. I had the Professionals install it since it was raining but the videos and information on etrailer make me confident I could have done it with the correct tools. The Equalizer was fantastic on the 75 mile ride home in the rain with heavy Tractor Trailer traffic. Had little to no sway. Very pleased with my decision. This is a heavy duty system and is easy to hook up. I ordered by calling etrailer because I had a question about shipping and delivery since I needed the new set up for delivery of my new TT. Lisa was more than helpful answering my questions and getting the hitch to me on time. I strongly recommend The Equalizer and etrailer for your towing needs. 426708



- EQ37060ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Etrailer is awesome! I called Monday evening and they answered my questions about the weight distribution hitches. I knew I wanted an Equalizer hitch but was unsure on the model. Etrailer recommended the 600/6000 model so I ordered it over the phone. They said it would take five days to ship to CA, but it was delivered today, on Thursday, and only took three days! Etrailer rocks!!! 525151



- EQ37140ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Just got the equalizer 14000 weight distribution hitch and the airlift bags in today from ups. Took a little over 2 hours to install both. The hitch I had before combined with the stock ram 1500 suspension was all over the road with my toy hauler. I couldn't go over 35-40 miles an hour with out feeling like I was going to lose my rig and anyone that's ever been in that situation knows what a white knuckle experience that is. I just got back from a test drive and it is unbelievable the difference those two items made. I got up to 70 and it drove like a dream. For reference my toy hauler is 8500#s with a 850# tongue weight. Thank you etrailer for the best product, fast/free shipping and definitely the lowest price. 382186



- EQ37141ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Dena was very helpful and knowledgeable on the selection of my weight distribution hitch. I had purchased a thin wall socket, But my buddy had one that I could have, so she made it easy to return the socket. The distribution hitch is perfect for my truck and trailer, it was easy to assemble and with the instruction pamphlet that came with it, it was easy to set up as well. 565746



- EQ37101ET
by:

Review from a similar Equal-i-zer 4-Point Sway Control in Weight Distribution


Figured out on Saturday what type of anti-sway hitch I needed to order, receive and install by Wednesday night. Tried another site, they couldn't meet the deadline, turned to google and discovered etrailer. Called at 1 PM on Saturday and talked to Steve Z, he got the order placed, and promised to check the status and follow up with me on Sunday. Everything was delivered on Tuesday and that night the hitch was installed, a day ahead of schedule. I don't expect to have a high need for towing / trailering, but when I do I'll be checking and calling etrailer first. On a scale of 1 to 10 their customer service is a 15. 426871


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Ask the Experts about this Equal-i-zer Weight Distribution
Do you have a question about this Weight Distribution?


  • Upgrading to 2-1/2 Inch Shank or Using a Reducer Sleeve with Equal-I-zer Weight Distribution System
  • Between using a reducer sleeve and upgrading your weight distribution shank, I recommend going with a weight distribution shank designed to fit the 2-1/2 inch hitch receiver on your 2015 Ram 2500HD. Using a 2/1/2 inch shank, like # EQ90-02-4800, for your Equal-I-zer weight distribution system, like # EQ37121ET, will not require adding any additional components to the system at the receiver. There will be less room for play in the hitch receiver when using a 2-1/2 inch shank than if...
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  • Weight Distribution System Recommend for 1,000 lbs Tongue Weight with 6 in of Drop for 2.5 Hitch
  • The correct way to determine the amount of drop you will need is to measure from the top of the hitch opening to the ground like you mentioned but then on the trailer you will need to measure from the bottom lip of the coupler to the ground when the trailer is level. The difference between the two measurements is the amount of drop you would need. Based on the dimensions you listed you are most likely going to need a 5 inch drop. If you have a hitch with a 2-1/2 inch opening then a system...
    view full answer...

  • Weight Distribution Hitch for 24-Foot Enclosed Trailer with Limited Frame Clearance
  • You could use a friction sway control device like # 83660 to help control the sway effects caused by passing trucks, but with a 24-foot enclosed trailer that has a lot of surface area for wind to push on, you will get much better results with a weight distribution system that has built-in sway prevention. These perform much better, and they also allow you back up the trailer without having to disconnect the sway arm. All friction arm units must be disengaged before you try to back up the...
    view full answer...

  • Can a Weight Distribution with Sway Control System be Used on Lifted Truck
  • You can certainly use a weight distribution system on your lifted truck. The key will be to find a weight distribution shank that offers you enough drop to be able to tow your trailer level. Weight distribution systems are available without a shank so that you can choose the one that works best for you. For example, if you have a trailer that has a loaded and ready to tow tongue weight somewhere around 1,000 pounds, a system like the Equal-i-zer Weight Distribution with 4-Point Sway...
    view full answer...

  • Availability of Equal-i-zer Weight Distribution Compatible with 2-1/2 Inch Receiver
  • For the 2-1/2 inch receiver you'd need to use an Equal-I-zer hitch along with their shank for a 2-1/2 inch receiver, part # EQ90-02-4900. The Equal-I-zer system you would choose will depend on the fully loaded and ready to tow tongue weight of your trailer, plus the weight of anything carried in the bed behind the rear truck axle. I'll link you to an FAQ article that outlines how to determine your trailer's tongue weight. For tongue weights up to but not exceeding 400 lbs, use part #...
    view full answer...

  • Recommended Weight Distribution Hitch for 10,000-lb Boat Trailer with Surge Brakes
  • For a boat trailer with 1000-lb tongue weight (TW) and surge brakes I suggest the Equalizer 4-Point System # EQ37121ET along with Weight Distribution Shank # EQ90-02-4300. This system is fully compatible with surge brakes and works with trailer TW up to 1200-lbs. The shank provides adjustable rise up to 10-inches. The system includes a 2-5/16-inch hitch ball. We also offer a thin-walled socket # EQ70-00-4800 to make it easier to install your hitch ball. You may need a pole tongue adapter...
    view full answer...

  • Recommended Long Weight Distribution Shank and Weight Distribution System For 10,000 Pound Trailer
  • I recommend using an Equal-i-zer weight distribution system. For a weight distribution shank, I recommend the Equal-i-zer Weight Dist Shank # EQ90-02-4500. This shank measures 18 inches long overall, and it measures 14 inches from the center of the hitch pin hole to the center of the adjustment holes. It offer a maximum rise of 7 inches from the top of the receiver opening and a maximum drop of 3 inches from the top of the receiver opening. The shank has a weight capacity up to 14,000 pounds....
    view full answer...

  • Recommended Weight Distribution System For 7,600-lb Travel Trailer
  • The best way to determine what system will work for you is to know what your total tongue weight is. The total tongue weight is the tongue weight of your fully-loaded-ready-to-tow trailer added to the weight of any cargo you place behind the rear axle of the tow vehicle. You will then want to find a system where your total tongue weight falls near the middle of the tongue weight range for the system. Getting a system that is too small will be useless, but getting a system that is too big...
    view full answer...

  • Could the Equal-i-zer Weight Distribution EQ37121ET Fit an EAZ Lift Shank
  • The Equalizer # EQ37121ET that you referenced has 3/4 inch holes that are spaced 1-1/4 inches apart. If the shank of your Eaz system is compatible with that this the WD system would work well for you. Nearly all WD system use the same hole dimensions. We have found that almost all brands can use each others shanks.
    view full answer...

  • Recommended Weight Distribution System and Sway Control for 2018 Jayco 324BHTS Travel Trailer
  • Your 2018 Jayco 324BHTS has a GVWR of 10,950 lbs with a dry weight of 8,605 lbs and dry hitch weight of 935 lbs. When looking for the best weight distribution system, you first need to determine the total tongue weight which will be your completely loaded tongue weight as well as any cargo behind the rear axle of your Ram truck. My recommendation for the best system to meet your needs is the Rees Strait-Line Weight Distribution w Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs...
    view full answer...

  • Equal-I-Zer Weight Distribution System Vs. Reese Strait-Line Comparison and Recommendation
  • The two systems you mentioned are basically the two best systems available for weight distribution. Either one will work great for you as long as it is properly rated for your setup and is properly installed/set up. Personally I like the Reese Strait Line system since they use spring steel for the spring bars that are designed to bend and then go back to their original shape. Equalizer bars will still flex back too but since it's not spring steel it will be a more rigid flex. I also...
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  • The Best Weight Distribution System For A GTW of 9,000-10,000 Pounds
  • In order to determine the best weight distribution system for your current setup, I would need to know the exact tongue weight of your trailer and any weight stored behind the rear axle of your tow vehicle. I have attached a help article on how to properly measure the tongue weight of your trailer. To ensure a proper reading, I recommend the Sherline Trailer Tongue Weight Scale part # 5780. This will allow you to measure the exact tongue weight of your trailer with little to no room for...
    view full answer...

  • Recommended Weight Distribution System for 2017 Wolf Pack Trailer with 9,985 Pound GVWR
  • When picking out a properly rated weight distribution system, the most important factor to consider is the total tongue weight of your setup. This number includes both the loaded and ready to tow tongue weight of your trailer, along with any added cargo weight coming from behind the rear axle of your truck. Ideally, this number will fall somewhere near the middle of the operating range for the system you choose. As you mentioned in your question, more is definitely not always better,...
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  • Difference Between Equal-I-Zer Weight Distribution Systems EQ37121ET and EQ37100ET
  • There's a couple key differences between the Equal-I-Zer Weight Distribution systems # EQ37121ET and # EQ37100ET that you referenced. The biggest being that the tongue weight range is different. The part # EQ37100ET has a range of 600-1,000 lbs and includes a shank whereas the part # EQ37121ET has a range of 800 lbs - 1,200 lbs and does not include a shank. The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded...
    view full answer...

  • Weight Distribution for a 2017 Ford F-150 and 4,400 Pound Trailer
  • First you will need to make sure that the trailer hitch on your 2017 Ford F-150 is rated for use with weight distribution. There should be a separate capacity listed when using weight distribution. I am certain that it is but it never hurts to make sure. For a trailer with a gross weight of 4,400 pounds that would put the tongue weight at 440 to 660 pounds. You also have to add in the weight of anything loaded behind the rear axle of the tow vehicle. Based on these numbers Equal-i-zer...
    view full answer...

  • Recommended Trailer Brake Controller for 2016 Toyota Tacoma 4WD Crew
  • The trailer brake controller I recommend for your 2016 Toyota Tacoma 4WD Crew is the Tekonsha Prodigy P3 # 90195. This controller offers a great combination of legendary reliability, easy set-up and operation and installation flexibility. It even allows you to store brake settings for when, as an example, your trailer is fully loaded versus empty. In your Tacoma with factory-installed 7-way trailer socket all you need to install it is the wiring adapter # 3031-P which plugs in under the...
    view full answer...

  • Best 2-1/2 Inch Weight Distribution System for a 7,000 Lb Trailer
  • I do have options for you but Husky does not make a weight distribution shank that will work with a 2-1/2" receiver tube opening. I also cannot confirm that any of the other brands that make a weight distribution shank for a 2-1/2" receiver tube opening will work with a Husky system. Therefore, you can either use a reducer sleeve like part # 58102 or sell the Husky Center Line Weight Distribution part # HT32218 that you have to recoup some of the money and then purchase a new system...
    view full answer...

  • Recommended Weight Distribution System For 2013 Toyota Tundra With 11-Inch Lift Kit
  • To find the correct shank you need for your Tundra with the 11-inch lift you will need to measure. First, you will want to park your truck and trailer on flat ground. Measure from the ground to the top of the trailer hitch receiver opening. Next, measure from the ground to the bottom of the trailer coupler. If the trailer hitch receiver opening is taller than the bottom of the trailer coupler, then the difference between the two measurements is the amount of drop you will need in a ball...
    view full answer...

  • Is the Hitch Ball Pre-Installed in the Weight Distribution Head of the Equal-I-zer System?
  • The Equal-i-zer weight distribution systems like # EQ37121ET come with the hitch ball needed, but do not come pre-installed. You will need to use a thin walled socket like # ALL643216 or # EQ70-00-4800 to torque it to manufacturer specs.
    view full answer...

  • Trailer Hitch and Trailer Brake Controller Recommendations for Lifted 2017 Chevrolet Silverado 1500
  • For a hitch to fit your 2017 Chevrolet Silverado 1500 I recommend the 2-inch Curt Class IV hitch # C14006. This hitch offers high capacity and no-drill installation and is USA-made. An installation video is linked for you; this shows a 2016 model year. For a brake controller the Prodigy P3 # 90195 that you referenced is an excellent choice. The Prodigy controllers offer easy set-up and reliable performance that is hard to beat. You will use wiring adapter # 3016 to install it in your...
    view full answer...

  • Will Equal-I-Zer Weight Distribution Frame Brackets Fit on 5 inch Tall Trailer Frame
  • The frame brackets that are included with the Equal-I-Zer weight distribution system part # EQ37121ET will work well on your trailer frame that is 5 inches tall as they are compatible with up to 6 inch tall trailer frames.
    view full answer...


Do you have a question about this Weight Distribution?




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Info for this part was:

Updated by:
Dan D
Written by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Jacob T
Expert Research:
Adam R
Updated by:
Laura H
Video by:
Dustin K
Installed by:
Cole B
Photos by:
Amber A
Expert Research:
Jeffrey L
Installed by:
Hayden R
Updated by:
Shelly K
Expert Research:
Victoria B
Updated by:
Amanda M

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