1. Weight Distribution Hitch
  2. Equal-i-zer
  3. WD With Sway Control
  4. 4-Point
  5. Prevents Sway
  6. 900 lbs
  7. 1000 lbs
  8. 1100 lbs
Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW

Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW

Item # EQ37120ET
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Weight Distribution Hitch
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In Use/Installed

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Product Expert Lindsey S's Opinion

Why would I buy this?

  • Great at preventing sway by holding trailer firmly in place at the system head and along the frame
  • Industry leading Equal-i-zer brand does weight distribution hitches and nothing else, so they know their stuff
  • Very little maintenance is required

Why wouldn't I buy this?

  • Steel-on-steel brackets can create a lot of noise, especially during turns
  • Requires a special thin-walled socket for installation, which is not included
  • You can't just switch out the bars if you get a heavier trailer
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. 2-5/16" Hitch ball and adjustable shank included. Lowest Prices for the best weight distribution hitch from Equal-i-zer. Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW part number EQ37120ET can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (469)
  • Q & A (334)
  • Videos (2)
  • Photos
  • Why etrailer?

Equal-i-zer Weight Distribution Hitch - EQ37120ET

  • WD With Sway Control
  • 4-Point
  • Prevents Sway
  • 900 lbs
  • 1000 lbs
  • 1100 lbs
  • Includes Shank
  • Fits 2 Inch Hitch
  • Electric Brake Compatible
  • Surge Brake Compatible
  • Allows Backing Up
  • Equal-i-zer

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. 2-5/16" Hitch ball and adjustable shank included.


  • 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, curvy roads 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, 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, adjustable shank, spring bars, sway control brackets, hitch ball, lift handle, pin and clip, and all necessary hardware
    • 1-7/8" Thin walled socket (EQ70-00-4800 - sold separately) recommended for hitch ball installation
  • Made in the USA


  • 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
  • Lift-bracket positioning: 27" - 32" back from center of coupler
  • Maximum trailer frame height: 6"
  • Shank length:
    • 8" From center of hitch pin hole to center of adjustment holes
    • 9" From center of hitch pin hole to front of shank
    • 7" From center of hitch pin hole to back of shank
    • 12" Overall
  • Total height adjustment along shank: 7-1/2"
    • Maximum rise: 7"
    • Maximum drop: 3"
    • Overall height: 9-1/2"
    • Holes are spaced 1-1/4" apart on center
  • Spring-bar dimensions: 35-1/2" long x 1-1/2" wide
  • Limited lifetime warranty


Included w/ SystemRequired - Sold SeparatelyOptional Add-Ons

90-00-1200 Equal-i-zer Weight Distribution Hitch

  • Weight Distribution Shank
  • Weight Distribution Head
  • 2-5/16" Chrome Hitch Ball
  • 2 Sway Control Brackets
  • 2 Spring Bars
  • Snap-up Lever
  • Spacer Rivet and Washers
  • Hitch Pin and Clip
  • Necessary Installation Hardware
  • 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 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.

EQ37120ET Equalizer Weight Distribution Hitch with Adjustable Shank and Hitch Ball - 12K

Installation Details EQ37120ET Installation instructions

Video of Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 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 System with 4 Point Sway Control Review

Today we're going to be taking a look at the Equalizer Weight Distribution System with a 4 point sway control and an included weight distribution shank. It has a 12,000 pound gross trailer weight and a 1,200 pound tongue weight, Part Number EQ37120ET. So you've decided you need a weight distribution system. The Equalizer Weight Distribution System uses steel on steel friction to help prevent and correct trailer sway. The sway control brackets ensure that your trailer stays in line with your tow vehicle. Our spring bars flex appropriately over uneven terrain for more controlled and even ride without balance. The system includes the head assembly.

It uses a traditional washer system to provide tilt in the head. The more tilt in the head the more lift in the tongue weight. Because it uses the 4 point sway control, there are no chains. The spring bars are easily installed with the included lift handle. The whole thing is made out of a dip steel construction, so it's going to be durable and resist rust and corrosion.

As with all weight distribution systems, it helps your tow vehicle get back to a stock height with the added weight of a trailer. Let's take a look at that now. I've gone ahead and removed the weight distribution and disconnected from the trailer. Let's go ahead and get a stock measurement of our tow vehicle. Here at the rear we've got about 39-1/2 inches to the underside of the wheel well. At the front, I've got about 38-1/2 inches.

Now you want to be sure and record these measurements because these are the measurements we want to try and get back to when we engage our weight distribution system. Now I've gone ahead and hooked my trailer back up to my tow vehicle without weight distribution. Now let's take a look and see what the tow vehicle looks like. Here in the back I'm squatting about an inch and here in the front my vehicle's tilted upward about 3/4 of an inch. Weight distribution should correct that. Let's hook it up.

Now I've got my trailer hooked back up and weight distribution engaged. Let's go ahead and take another measurement on our tow vehicle. Here in the back we're back to stock height and same with the front. Excellent. Not using a weight distribution system can cause issues with your traction, tire wear, and handling. Getting your vehicle back to stock with a weight distribution system can help prevent those problems. Now let's show you how it's installed. First thing to note about using a weight distribution system is you need to make sure your trailer or camper is fully loaded and ready to go. This ensures proper weight is being applied to your tow vehicle. The shank can be installed in either the rise or drop position. The head is adjustable along the shank. You just need to make sure that the top of the ball is level with the top of the coupler when your trailer's level. The kit includes 8 washers to adjust the tilt of your head. You don't have to use all eight, you just need to make sure to use enough to get your vehicle back close to stock. Our spring bars fit inside the weight distribution head and are lifted on the L bracket with the included tool. We can then place in our snap L pin to help keep the spring bar in place. This is where that steel on steel friction takes place, helping us with our sway control. Finally, our link plates are installed on our trailer's A frame with the L brackets on the outside. You just to make sure and avoid your battery box or your propane tanks. Those may have to be relocated. It needs to be positioned between 27 and 32 inches from the center of your coupler. If you've used all 8 washers for your head tilt and your vehicle still isn't back to stock, you can adjust your L brackets. And that's going to complete our look at the Equalizer Weight Distribution System with a 4 point sway control and included weight distribution shank. It has a 12,000 pound gross trailer weight and a 1,200 pound tongue weight, Part Number EQ37120ET.

Customer Reviews

Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW - EQ37120ET

Average Customer Rating:  4.9 out of 5 stars   (469 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. 2-5/16" Hitch ball and adjustable shank included.

- EQ37120ET

The installation process was fairly easy, but if you're planning on doing it yourself, keep in mind you'll need the 1 7/8" thin-walled socket (EQ70-00-4800), and most likely a 3/4 drive extension to clear the head, as well as a torque wrench that can read up to 420+ lb/ft. I wish etrailer would sell the extension like they do the socket, though - I lucked out and found one locally, but they only had one, and they were the only store I could find in 50 miles that had 3/4 drive extensions. Hitching is a little more difficult than using a chain WD system because the arms are so hard to get into position, but not needing a separate anti-sway mechanism is great, and after dealing with a failure and warranty claim with a competitor's chain-based system, the quality, customer service, and warranty terms of the Equal-i-zer really set it apart. 467432

- EQ37120ET

I received this hitch about a month ago and couldn't install right at first due to some issues I was having but I have finally got it installed and set up right. This is great! I will go on my maiden voyage Memorial weekend but I'm sure it is going to perform as expected. Excellent price that no one can touch. Instructions are easy to follow and detailed the way it should be. Time, was about as expected, so don't rush because you don't want to miss any steps. 314559

Well I have owned this hitch for a year and it has worked flawlessly. In July we took our camper on a 2000 mile trip and we had no issues with the hitch at all. We were in all types of traffic through large and small cities, we didnt have any sway issues because the hitch, now broken in, works much better than I knew it would. I had installed the pads under the slide bars and use the grease to quieten it down when in all the turns I made during this trip. I dont believe there is a better hitch out there that can tame my 38 ft 9000lb Jayco than this Equalizer. Best money spent here. 11/7/17
Herman S - 11/07/2017


- EQ37120ET

The Staff at etrailer made the purchase simple and very helpful in picking the right tow package product. Installation instructions were sent when the product arrived. Great product n company! Thank you so much Connie! 654652

- EQ37120ET

Product was easy to install, following instructions that came with. Video's online also helpful. It was recommended to use thin wall 1 7/8" socket to tighten the hitch ball nut, but was able to get a impact socket into the space. The trick is to turn the square weight distribution receiver's out to the side. ( ie...perpendicular to the hitch receiver. ) They come from factory at a 45 degree angle, turn them out to 90 degree's. Then the socket fits in to tighten the nut. Great videos online from product on how to make sure your weight distribution is correct once installed on tow vehicle and trailer. 609508

- EQ37120ET

12000 lbs. hitch was a great improvement over my previous bent bar hitch with chains. Trailer sway has decreased a lot. MY 35 foot trailer pulls straight except when it is windy. I am no longer bothered by passing vehicles. Was noisy until I added the nylon pads from equalizer. Much quite now. 610499

Keep in mind that the jackets or pads will decrease the effectiveness of the sway control to a degree because they limit some of the metal-on-metal friction which provides the sway control.
-- Mike L - 03/06/2019


- EQ37120ET

I recently replaced my weight distribution and sway bar that had the chains for distribution and the brake style anti-sway with the Equalizer 1200. I also had purchased a scale to weigh tongue wt. I wanted to wait until I had some good miles on it before I reviewed. I tow a 33 1/2 ft toy hauler with a RAM 1500 eco-diesel and am pretty much maxed out on what I can safely pull. After weighing my rig at a truck stop and then checking my tongue wt, I called etrailer and got excellent confirmation on which set up to use. The 1200 worked like a dream. My wife actually let go of the dash board and commented on how much smoother and controlled the ride is. If you have any doubts as to the ability of these set ups, put them to rest. I couldn't be more pleased. The sway is all but eliminated and the ride has improved dramatically. On another note, I also found the 1200 cheaper but without the ball. I submitted the link as directed to and I was expecting them to reply with, 'this isn't the same'. Instead, they added $22 to the price I submitted to include the ball and then gave me their guaranteed price match. To me, this speaks volumes for their honesty and integrity. This is not my first purchase through them and I will not hesitate to use them again. 476299

- EQ37120ET

I installed this hitch on my 2007 Toyota Tundra. I use to have the chain style. Big difference when getting next to rigs. This hitch is a much tighter tow. Glad I upgraded. 386771

- EQ37120ET

I purchased this hitch for a 9000lbs travel trailer with a 1001lbs tongue weight. If your debating between a less expensive round bar and this setup, spend the money. This hitch is by far a better, easier, and safer setup. I purchased this hitch to replace a Pro-series round bar with a friction sway control bar. The Equal-i-zer's 4 point sway control is big step up from a single point sway control system. The 1st drive felt secure and safe. Install was easy, but time consuming for a 1st time installer. But worth it in the end. Here's some pointers. 1. get the right tools, rent or barrow a the torque wrench to do the hitch ball 430ft/lbs, and shank bolts 320ft/lbs. The piece of mind that it's correct is worth it. 2. Plan for the afternoon, not a couple of hours. 1st setup is going to be close but your going to have to adjust it so plan on taking something apart. but setup is relatively easy, esp with the right tools. I had the trailer level the 1st go around to 2.5". So I had to move the head up one hole in the shank and then it was within 1". Distribution setup was still with in a proper setup, so I didn't have to make any further adjustments. As far as the coupling and uncoupling the hitch. Using the tongue jack to release the tension is easy to do and quick. Esp. with an electric jack. I never liked the round bar with chain setup on my previous hitch. High quality, easy install and setup, and seems to have great sway control. 305090

- EQ37120ET

The Equalizer Weight Distribution System w/4 point sway control is as good as advertised. The installation took me approx 2.5 hrs and it was not difficult, just took a little time to make fine tuning adjustments to get the performance from the system that I wanted. The Equalizer System has removed an estimated 95% of the sway issue that I was having while pulling a 29 ft travel trailer with a mid-size Chevrolet Colorado pickup. Looking forward to getting out on the road and giving it a thorough testing, but so far it meets my expectations. 402238

This hitch was a great investment!! It has made a huge difference in how my trailer handles in the Texas winds. I used to get white knuckled every time that I set out on a trip with my previous chain hitch and seldom ever felt comfortable in pulling the trailer at speeds in excess of 45 mile per hour. Now I can move along at normal Dallas freeway speeds in comfort. This hitch was a welcomed addition to my RV experience.
Jim H - 07/06/2018


- EQ37120ET

Fantastic Hitch! etrailer had the best price by far, arrived within 4 days of placing the order in excellent condition with no shipping damage or missing parts. Mt RV Dealer did the original setup, but their installers apparently never watched a video on proper installation, as they took no before or after measurements of my truck wheel well height, never used a torque wrench, and placed the sway bracket assemblies at 27 inches from the ball when 32 inches (factory recommended distance) was easily available on the trailer. Many other install errors as well like incorrect number of spacer washers and incorrect L bracket mounting hole positions, all of which caused my 2016 Ford F-150 to squat while towing. Never assume the dealer service department knows what they are doing! Once home, I set the hitch up as instructed by Equal-i-zer without too much difficulty. This hitch now has my truck sitting level and tows like a dream with very little sway at all, and I tow a 35 foot travel trailer. Keep the hitch lubed as instructed, and use the optional sway bracket jackets and this hitch is fairly quiet. Well worth the money, no more white knuckles!! 453213

- EQ37120ET

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

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


- EQ37120ET

I picked up my new reflection travel trailer in June 2017 and had the EQ37120ET installed. That day unfortunately was a rainy and very windy day. As I got on the road for my 130 mile trek back home the rains and the wind intensified. I noticed that I felt some wind movement against the trailer but I was not tossed all over the road and my tow vehicle and trailer stayed true and straight in the road lane. I was pulling at 60 MPH and was surprised how well this product was performing. Also when big trucks would pass this product kept that pushing away and sucking in motion from happening. I can attest that this product worked great and better than I thought. This product also kept my tow vehicle and trailer level, no steering problems at all. This product is well worth the money and performs great. I recommend this product. 401043

- EQ37120ET

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

- EQ37120ET

This hitch setup is worth every penny. Install was not painful and instructions were clear. After setup was finished I took her for a spin and I was amazed at the difference. The ride was smooth and no sway!!!! No more friction sway control for me!! I would recommend this to anyone who is in the market for a WD hitch. 472980

- EQ37120ET

Was needing a weight distribution system for towing my 16' toy hauler and with Kats help from etrailer I couldn't be happier with this product. Trailer has a dry hitch weight of 950lb and 1100lb loaded. Set up took me an hour or so, but now I feel comfortable hooking and unhooking. Took it on a 100 mile trip a few weeks back in heavy rain with strong wind gust and handled great! Without it I didn't feel safe going 60mph on calm sunny day. 305707

- EQ37120ET

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

I have been hesitant to review this product as I have had several issues with it....not necessarily the product itself, but my use and application. To start out, I should have used a different drop down hitch. The one that came with the unit does not allow the ball to sit low enough for the trailer to sit level once everything is set. Get the right amount of weight transfer and the nose of the trailer sits high which has a negative impact on towing. Less weight transfer for a level trailer means to more truck nose lift, dangerous sway, dangerous driving. The worst part is that if I had been aware and asked to change the hitch, it might have only cost me 10-20 dollars. Now I need to purchase a new hitch with a bigger drop, which will cost me around 150 bucks. I do believe that this will make a big difference. As I have gotten the setup closer to correct, it does seem to work well. I do however feel that the teflon plastic slide pads for the L brackets would be a worthwhile investment as it is noisy when making slow speed turns, which can be dis-concerting 57823

You realize that the friction where the spring bar slides in the L bracket is responsible for the sway control right? Reducing the friction would reduce the sway control of the unit... I am interested to try this product. I think what you are saying about getting the right set up for your individual rig is the most important thing.
-- comment by: Donny - 02/01/2014


The nylon jackets may very well reduce the sway control ability of the unit. For some applications, the reduction is sway control is not problematic and sometimes the noise is just too much. It is up to the user as to what they need more, but the jackets are available for those that want to get rid of some of the noise.

-- Patrick B - 2/5/2014

- EQ37120ET

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

Best hitch on the market for anti sway and load equizling. Quick hook up, love it!
Jeff P - 07/23/2017


- EQ37120ET

Ordered the Equal-I-zer weight dist hitch as a reaplacement for original W/D anti-sway hitch trailer dealer sold me (was getting quite a bit of sway). Relatively easy to install, instructions were very easy to follow, getting a torque wrench (430 ft-lbs) for the ball had been my only concern. Weight distribution was right the first time, truck and trailer sit nice and level. The trailer tracked very well and there was no sway when being passed by large tractor-trailers. Less noise than I expected after reading reviews when researching hitches. Very happy with the hitch and the GREAT service from etrailer. Highly recommend. 272309

- EQ37120ET

I could not be happier with this hitch. This is my second one as I upgraded my Airstream to a GT27FBT. I considered the more expensive and highly regarded options, but the ease of use and overall experience with my first hitch kept me with Equal-i-zer. Price, availability, and delivery from etrailer was perfect. Highly recommended all 'round. 745173

- EQ37120ET

Excellent product and support. 733446

- EQ37120ET

Excellent product 719419

- EQ37120ET

Great product .no sway. 717040

- EQ37120ET

I am very pleased with this hitch, and the performance. My truck has air shocks and I wanted to relieve some of the stress put on them. I am feeling more control with the hitch in use. 714439

- EQ37120ET

The weight distribution hitch I bought from Etrailer.com is exactly what I thought I was buying and has been just fine. Far and away more important is how refreshing it is to buy from a company that goes to significant efforts to make sure their customers are happy with their purchase. Thank you etrailer.com. I would be happy to do business with you in the future. I am a frequent online buyer and I almost never do the requested reveiws. But this is one case where I will go on the record in support of this company. I have had a few transactions with them and the one time I had an issue it was quickly corrected. Handling, shipping and my receiving what I ordered was very quick and afterwards they reach out to make sure I got what I wanted. Sad to say, this kind of customer service is shocking! 705819

Show More Reviews

Ask the Experts about this Equal-i-zer Weight Distribution Hitch

  • Recommended Equal-I-zer Weight Distribution Hitch for Ice Castle Fish House Trailer
    For your Ice Castle Fish House, the weight of the unit will determine what Equal-I-zer system will work best. A weight distribution system is based on the total tongue weight of the loaded trailer along with any cargo weight behind the rear axle of the tow vehicle. Because these trailers are fairly good sized, I'll give you a recommendation for a larger system. You want that total tongue weight to fall in the middle of the range of the system for best results. For a total tongue weight...
    view full answer...
  • Recommended Equlaizer hitch for 2018 Lance 2375
    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 and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. 600 lbs of tongue weight is hard...
    view full answer...
  • Curt or Equalizer Weight Distribution Recommendation for 30 ft Camper
    Equalizer weight distribution systems are regarded by many to be the best systems around. I recommend them quite a bit and it would be what I would recommend for you. The part # EQ37120ET would be the better option. The Curt systems like the part # C17501 aren't terrible systems but they are essentially Curt trying to copy the Equalizer design. We have also had a few issues with the frame brackets of the systems bending so we don't recommend them as high as the Equalizer. To install...
    view full answer...
  • Recommended Weight Distribution System for Towing a 2004 Coachman Cascade 30TBS Travel Trailer
    It sounds like you already know how to find the a correct weight distribution system by using your trailer's loaded tongue weight added to the weight behind the Ram's rear axle. That's a great start. Since your trailer's gross vehicle weight rating is 8,720 pounds it's likely going to have a loaded tongue weight between 900 and 1,300 pounds. If it's loaded to its max weight. The 720 pounds tongue weight you mentioned is its dry tongue weight. Once your trailer is loaded and you...
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  • Weight Distribution System and Electric Brake Controller in 2015 Toyota 1794 Edition Tundra
    You should confirm the exact towing capacity of your 2015 Toyota 1794 Edition Tundra. I looked at an online copy of the owner's manual and it lists that, if properly equipped, your truck may be able to tow over 10,000 pounds however it also states not to tow more than 5,000 pounds with a bumper hitch. I also, could not find any information about whether the factory hitch is rated for a weight distribution system or not. If you find you can use a weight distribution you'll need to...
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  • Recommended Equal-i-zer Hitch Head Rating
    The square tubes are different sizes. The systems basically have two bar dimensions, so if you bars are a fit in the head, then you will be fine with the head. If the bars do not fit in the head, then you cannot make it compatible. There are two different bar sizes, 1-1/4 and 1-1/2 inches and you can't vary between the two. If you need a new hitch head, I recommend the Replacement Head for Equal-i-zer Weight Distribution Systems - 1,200 lbs TW # EQ90-02-1200. Unfortunately the numbers...
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  • Upgraded Shank To Use Equal-i-zer Weight Distribution System On a 2017 Chevy Silverado 2500
    I have exactly what you need for your Equal-i-zer Weight Distribution System part # EQ37120ET, the Equal-i-zer Weight Distribution Shank part # EQ90-02-4700. This shank has the same rise/drop as the one that came with the above system but has the larger 2-1/2" shank that will fit securely inside the receiver tube opening on your 2017 Chevy Silverado 2500. The receiver tube opening on your 2017 Chevy Silverado 2500 is 2-1/2", not 2-3/4". This will reduce rattle and play tenfold when compared...
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  • Weight Distribution System Drop for a 2018 Ram 2500 Pulling a 2017 Forest River Sonoma Trailer
    To determine if the drop of Equalizer's standard shank is sufficient for your tow vehicle and trailer combination, you need to measure from the ground to bottom of the coupler. Then do the same from the ground to the top of the receiver on your Ram 2500. If your hitch height is greater than your coupler by more than 3 inches, a larger shank is needed. The Equalizer adjustable shank that comes with # EQ37120ET has a maximum rise of 7 inches and a maximum drop of 3 inches. An adjustable...
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  • How Far Back Will Frame Brackets of Curt Trutrack Weight Distribution Install on Trailer Frame
    You are on the right track in that you do need a weight distribution system with a higher tongue weight rating than what you currently have due to the weight of your trailer. The Curt system part # C17501 is basically an Equalizer clone so if your current Equalizer is working well this would be an excellent option. I spoke with my contact at Curt and he informed me that the frame brackets can be installed on the frame between 28-1/2 inches and 31-1/2 inches from the center of the ball...
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  • Recommended Equal-i-zer Weight Distribution System for a 7,500 lb Travel Trailer
    A weight distribution system will need to be based off of the total tongue weight (TTW) of your loaded ready to tow trailer plus any weight stored behind the rear axle of the tow vehcile. If the 1,050 lb tongue weight rating you provided is correct then the proper system for you would be the Equal-i-zer Weight Distribution System w/ 4-Point Sway Control part # EQ37120ET which is rated for 800-1,200 lbs of tongue weight. I have attached a review video of the above system for you as well.
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  • Weight Distribution System for a 2012 Ford F-150 and 7,800 Pound Travel Trailer
    The 10,000 pound capacity system, # EQ37120ET, would be the better choice. The reason is how weight distribution systems should be chosen. You would not go by gross trailer weight capacity (unless it was not rated high enough) but instead go by the total tongue weight. Total tongue weight is calculated by taking the tongue weight of the trailer when loaded and ready to tow and adding to that the weight of anything loaded behind the rear axle of the tow vehicle. If your trailer is loaded...
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  • Recommended Weight Distribution/Sway Control System for 2016 Ford F-150 Towing 6K Trailer
    A weight distributing/sway control (WD/SC) hitch system is needed in several circumstances, but most certainly when a vehicle tows a trailer that weighs more than half of its weight. The curb weight of a 2016 Ford F-150 XLT ranges from 4049- to 4930-lbs so when pulling a trailer that weighs in the range of 6000-lbs you will definitely feel the benefits of using a WD/SC hitch. These systems do two things. They shift some of the trailer's tongue weight (TW) forward, back onto the truck's...
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  • Recommendation For Equalizer Hitch For Towing 2017 Jayco 260 With 2018 Ram 2500
    To get the right Equal-i-zer Weight Distribution (WD) system for your towing setup, you need to know your actual Tongue Weight (TW) when fully loaded and ready to tow. You will also need to include any weight from behind the rear axle of your 2018 Ram 2500. To make this easier, I recommend using something like the Sherline Trailer Tongue Weight Scale, Item # 5780. As you determine this weight, keep in mind that the TW is 10% to 15% of the total loaded weight of your trailer.  After you...
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  • Does Equal-i-zer Weight Distribution System # EQ37120ET Come With Hitch Ball
    The Equal-i-zer Weight Distribution System # EQ37120ET that you referenced does come with a 2-5/16 inch hitch ball.
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  • Comparing Electronic Sway Control vs WD Systems with Sway Control
    Thanks for asking a very good question; I am happy to offer some help. Electronic sway-control systems, whether they are OEM or aftermarket, do not deliver the same level of sway-control performance you can get from a weight distribution (WD) system that has this anti-sway feature built in. The reason is that the electronic systems only start to work once sway has begun. They detect the sway and then apply the brakes selectively in an attempt to reduce that sway. Vehicle systems apply...
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  • 1000 or 1200 lb Equalizer Weight Distribution System Recommendation for GWVR Trailer 8800 lbs
    If you want to go with one system the best option will be the 1,200 lb tongue weight kit # EQ37120ET. It would be better to have more tongue weight capacity than needed than not enough when needed. The ride might be a little more stiff when loaded lighter but you can compensate for that by lowering the spring bar tension.
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  • Weight Distribution for Dump Trailer with 8 Inch Tall I-Beam Frame
    I do have a great option for you but a Reese system is not going to be the best choice in this case. You will need to box the trailer frame where the weight distribution brackets will go by having steel plates welded on. What you can use is an Equal-I-zer system, # EQ37120ET as an example, and then add 2 outer link plates, # EQ90-02-5378, sold in quantities of 1, and 2 inner link plates, # EQ90-02-5208, also sold in quantities of 1. That would allow you to use the system on an 8 inch...
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  • Will Over-Rated Weight Distribution System Cause Harsher Ride
    The Equal-i-zer Weight Distribution System # EQ37120ET referenced in your question has a tongue weight capacity range of 800 to 1,200 pounds. If your tongue weight remains within this range, this particular model will still be a good system for your setup. Keep in mind that your total tongue weight will also include any added weight coming from behind the rear axle of your tow vehicle, which will likely put the tongue weight of your trailer into this system's capacity range. If your...
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  • Does Tongue Weight of Trailer Need to be Measured After Install of Weight Distribution
    There really isn't a need to try to determine tongue weight of a trailer after installing and setting up a weight distribution system. You want to know the tongue weight so that you can pick out the correct rated system, but beyond that you do not need to measure it again, nor is there a great way to do so.
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  • How to Pick Out Weight Distributin System for Lance 1995 Travel Trailer
    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 and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. Once you know your tongue weight...
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  • Weight Distribution Hitch Recommendation for 2001 Ford Excursion
    If your trailer is really weighing up to 15k you should check the owners manual of your Excursion to be sure you aren't exceeding the towing capacity. We really can't recommend ever exceeding the capacity even with a weight distribution system. Everything I am seeing says 11k is the capacity of your vehicle. In situations like yours the only real option is to go with a system rated for when the trailer is loaded at it's heaviest since that's when you'd need it the most. Based on that...
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  • Can a Weight Distribution System Be Used with a Pintle Hitch
    You cannot use a weight distribution system with a pintle hitch. You would need to remove the pintle hitch you have now in order to use a weight distribution system. Once you do this, I recommend using the Equal-i-zer Weight Distribution System which has 4-point sway control that will be more more effective at managing trailer sway than most other systems. In order to choose the correct system you will need to know the total tongue weight (TTW) of your towing setup which is composed...
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  • Equal-I-Zer Weight Distribution Recommendation for Trailer with GVWR of 8,300 lb
    We don't carry the EAZ systems but the Equal-i-Zers are considered by most people to be the nicest on the market so I know you won't go wrong with one. If you have a dry tongue weight of 720 lbs that means you most likely would have a loaded tongue weight of between 830 and 1,100 lbs which means the Equal-I-zer system part # EQ37120ET would be your best option. This has a tongue weight range of 800-1,200 lbs and would work very well for you.
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  • Choosing Weight Distribution System for 8-Inch-Tall Trailer Frame
    The standard spring bar brackets in the Equal-i-zer 4-Point Weight Distribution Systems # EQ37140ET and # EQ37120ET will fit trailer frames up to 6-inches in height as you noted. There is no alternate part or adapter to allow these systems to be fitted on an 8-inch-tall trailer frame. For a tall trailer frame like yours the best weight distribution/sway prevention systems will be those that use bolt-on brackets and round bars that will provide better turning clearance at the nose of...
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  • Does Tongue Weight Need to be Factored After Weight Distribution System is Installed and Setup
    If you have a properly rated and setup weight distribution system installed on your towing setup like you mentioned and you are under the towing capacity for the vehicle you do not need to worry about the tongue weight figure. Also, a tongue weight scale is not compatible with any of the systems we have and would not be accurate either due to the spring bar tension.
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  • Selecting USA-Made Weight Distribution/Sway Control System for Travel Trailer
    The key to selecting the right weight distribution/sway control (WD/SC) system for your new bumper-pull travel trailer is knowing the trailer's actual tongue weight (TW) when fully loaded with all supplies and water and propane tanks filled, etc. The handy Sherline scale # 5780 makes this easy. To the trailer's own actual loaded TW you need to add the weight of anything in the tow vehicle that will sit behind the rear axle, say a loaded cooler or generator, since this cargo weight will...
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  • EQ37120ET
    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 and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. If you can get me the loaded tongue...
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  • Equal-I-Zer Weight Distribution System Recommendation for a 2014 28BHSWE Hideout Trailer
    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 and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. A Equal-I-Zer part # EQ37120ET...
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  • Comparing Reese Strait-Line and Equal-I-zer Weight Distribution Systems
    We sell more Reese dual-cam (Strait-Line) weight distribution systems than Equal-I-zer systems. But we have also carried Reese products since etrailer began and haven't had Equal-I-zer as long. The thing about Equal-I-zer is that they have brand recognition. People know who and what Equal-I-zer is which is why they are so popular. Their systems do work but like any friction type of sway control system they make a lot of noise and components can wear out faster than non-friction systems....
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  • Best Weight Distribution System for Towing a 2016 Jayco Jay Flight SLX 287BHSW
    When choosing a Weight Distribution (WD) system you need one with a Tongue Weight (TW) range that the Total Tongue Weight (TTW) of your towing setup falls in the middle of. To find the TTW of your towing setup you will need to add the TW of your fully loaded and ready-to-go trailer along with the weight of any cargo behind the rear axle of your tow vehicle. Keep in mind that a properly loaded trailer will have a TW that is 10-15% of the loaded weight of your trailer. Since the dry hitch...
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