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Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Item # AP233

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Trailer Leaf Spring Suspension

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Trailer Leaf Spring Suspension AP233 - Double Eye Springs - etrailer
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  • Equalizers
  • Standard Equalizer
  • Double Eye Springs
  • Tandem Axle
  • 5-3/4 Inch Long
  • etrailer
Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing. Lowest Prices for the best trailer leaf spring suspension from etrailer. Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs part number AP233 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (193)
  • Q & A (42)
  • Videos (1)
  • Photos
  • Why etrailer?

etrailer Trailer Leaf Spring Suspension - AP233

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing.


Features:

  • Suspension kit lets you attach 4 leaf springs (sold separately) to your trailer frame
    • Works with 1-3/4" wide double-eye springs
    • Hangers sold separately
  • Equalizers transfer load and impacts from one axle to another by permitting movement between the axles
    • Springs attach to ends of equalizers with included hardware
  • Bolts secure equalizers and springs to the hangers on your trailer
  • Shackle link assemblies with bolts secure springs to equalizers
  • Kit includes:
    • 2 Equalizers
    • 8 Shackle straps
    • 14 Bolts with locknuts


Specs:

  • Application: tandem-axle trailer with 1-3/4" wide double-eye springs
  • Axle spacing: 33"
  • Equalizer dimensions: 2" tall
    • 5-3/4" Long from center hole to center hole
  • Shackle strap length: 2-1/4" from center hole to center hole
  • Bolt dimensions: 3" long x 9/16" diameter



Hanger Locations for Tandem Axle

Leaf SpringsA - Distance Between Front and Center HangersB - Distance Between Center and Rear HangersC - Distance Between U-BoltsD - Distance Between Center of Axle and Trailer FrameAxle Diameter
SP-169275 (1020)25"25"29"5"1-3/4"
(typical 2,000-lb trailer axle)
SP-219275 (PR722)
SP-220275 (PR3)
SP-218275 (PR4)
SP-212275 (PR4B)
SP-111275 (PR5)
SP-198275 (PR6)
29-1/2"29-1/2"34"4-1/2"2-3/8"
(typical 3,500-lb trailer axle)


TSW-19 Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Replaces AP233







Video of Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs


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




Video Transcript for etrailer Trailer Suspension - Leaf Spring Suspension - AP233 Review

Today, we're going to take a look at the Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs. Now, this part will allow you to attach 4 leaf springs to your trailer frame. It is designed to be used in conjunction with part number H248, and that is a complete kit of hangers, the front, center, and rear hangers, and we also sell a complete kit of this part and the hangers, and that would be part number AP233-H248. That's also sold separately on our website. Now also, on the product page for this part number, if you look, there'll be a table and it'll show you to determine your hanger location when you use those hangers with this, based on your type of leaf springs. Now, this part will achieve 4-1/2" or 5" of clearance between your trailer frame and axle, depends on your axle size.It includes everything laid out here on the table.

It includes the 2 5-5/8" long curved equalizers. And just to give you a dimension, when they say 5-5/8, the measurements of the center of this hole to the center of that hole. If we take a ruler and go center to center, you can see right at the 5-3/4" measurements. Now, the holes on these are 9/16 diameter on all the holes. And then the height from the center of the equalizer end hole to the center of the equalizer center hole ...

So in other words, if we drew a line between these 2 holes and measured up from that line to here, you could see that would be right at 2". Now, it comes with 2 of those equalizers. It comes with 8 of the 2-1/4" shackle straps. It comes with 14 of the 3" long 9/16 diameter shackle bolts, and it comes with 14 of the 9/16 diameter lock nuts.Now, this is designed for use on trailers with tandem 2,000 pound to 7,000 pound axles, and it does not include any of the components needed for mounting the axle to the springs. But that should do it for the review of the Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs..


Customer Reviews

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - AP233

Average Customer Rating:  4.9 out of 5 stars   (193 Customer Reviews)

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing.

- AP233
by:

good shipping..very fast.. and packaged very strong...will fix my shimmy and bounce on my wood trailer..time to cut wood for the winter..web site is very user friendly..i like the install instructions shown with each item...selection says it all...thanks..will order from etrailer again... 21815



- AP233
by:

Quality parts at a great price. I already had to change the shackle straps and of course the bolts since they have lock nuts. The reason for the change was due to heavy loads and poor roads. I would like to see the shackle straps made of thicker steel to handle these conditions. 282053



- AP233
by:

Received product very quickly, complete with instructions. Very easy to install. Product was same as original, installed & completed less than 15 minutes. Very good product & reasonably priced. 561653



- AP233
by:

I have a 23 year old Sunline camper I have towed all over the country. While repacking my wheel bearings I noticed excessive wear in the equalizers. I found etrailer on line and ordered the AP233 kit which included 2 equalizers with bushings and new straps, bolts and locknuts. The price including shipping was fantastic. I ordered the parts and they shipped immediately. They arrived on the day promised and I had them installed in less than 2 hours. I would highly recommend etrailer to anyone needing parts for their trailer!! 219900



- AP233
by:

Well, my suspension replacement and over/under swap went great! You guys were very helpful in ensuring I got the right parts and didn't waste money on shipping and other parts I didn't need. It tows like a dream now. I hardly even notice it behind me and I really don't have to slow down to .05 MPH for every little dip in the road. 500912



- AP233
by:

Fast shipping, from the time I ordered till I received was 2 days. Product is just as described and fit perfectly. Etrailer is great and has great customer service. I highly recommend them. 202581


Comments

The new springs I put on my boat trailer are working great and they have cured my tire wear issues I was having.

Kerry - 07/08/2016

19196

- AP233
by:

Excellent product. Everything fit together as it should. Put simply... I was very impressed. 233555


Comments

Well, its been a year and I am still very impressed with the suspension parts I got from eTrailer. I have ran my car trailer from Michigan down to southern Ohio, Indiana, and Illinois. Had no issues what so ever. The trailer handled beautifully.

Sgtbass64 - 12/09/2016

22024

- AP233
by:

Fits perfect no problems made very well 519130



- AP233
by:

It is an Ok product. One of the shackles was 1/2 inch shorter than the others, so it was unusable. Other than that, great product for the money. 211128


Comments

Great trailer suspension. Ive had it for a year and still works great

Tyler N - 07/11/2016

19304

- AP233
by:

After all of the bad weather I was able to finish installing my new suspension system on my 1992 Lance Fifth Wheel. The task was much easier than I had anticipated. The instructional video you provide access to were a big help. Other than having to grind off a nut or two I had no difficulties (See attached photos). The 'list' that had developed on the fifth wheel is now resolved, and towing has already proven to be better. 359075



- AP233
by:

The old components on a 1986 flatbed trailer were worn out and about to fail. Everything in this kit measured and fit perfectly. 657915



- AP233
by:

It fit perfect it was a third of the cost of local dealers I could not be happier back-and-forth out of California and Oregon 15 times so far. Not one issue 655482



- AP233
by:

Working exactly as it should and in perfect form 654596



- AP233
by:

Product arrived faster than expected. Leaf springs installed easy and work great. Great service from etrailer 646993



- AP233
by:

Amazing quick service and its much appreciated when in a bind. 644683



- AP233
by:

Fast shipping, just what I ordered! Will definitely be a return buyer. 643815



- AP233
by:

Certainly the best price around but probably because it's all made in China. I was also missing one of the bolts. Rather than mess with calling and waiting I just used one of my old ones. Probably better anyway. 641016



- AP233
by:

Kit was an exact fit. Replaced all worn parts and now road ready again. 640382



- AP233
by:

good delivery time and products as decribed, saved my trailer from being a road side attraction .. 639993



- AP233
by:

Price was great.. only complaint the 5 1/4 equalizers i needed didnt come in a kit. Not a big deal,bought this kit and equalizers seperate still good price. Who knows maybe my cougar 5th wheel has odd ball equalizers. 637657



- AP233
by:

Parts fit perfectly, and were high quality. Delivery, as usual, was fast. Thanks! 637402



- AP233
by:

I need to order another shackle kit....my buddies trailer was in bad shape 637296



- AP233
by:

Worked out great. The customer took the trailer from Pa. to Vermont with no problems. 637294



- AP233
by:

product arrived complete and undamaged, haven't installed yet but looks to be good quality material. Thanks 636498



- AP233
by:

Great service and product again. Have trailer under carriage rebuilt and rolling. Thank You! 619572



- AP233
by:

Excellent price fast shipping 615452



- AP233
by:

I am pleased with my shackle bolts equalizers and spring bushings. They are stock replacement parts so the cost was much more reasonable than the other companies wanted to sell me heavy duty replacement kit. The RV is 7 years old and this is first time replacing these parts. So I can expect another 7 years. I received the parts in three business days. It took 2 1/2 hours for this 72 year old man to replace one side. Tomorrow I will tackle the other side. 614323



- AP233
by:

Exactly what I ordered, very good quality and exceptional price. The customer service team goes above and beyond. Would definitely order from this company again. 612130



- AP233
by:

This is the second time I've used etrailer and I have been greatly pleased with the results. The products I've purchased have been as expected and the orders were shipped right away. Very quick service. The Customer Service Dept. has been very responsive as well. 611979



- AP233
by:

Great product no problems at all 608857



- AP233
by:

Everything went great thank-you for the fast delivery 608692



- AP233
by:

I ordered these parts for my husband and he is very satisfied with them. I was especially impressed with the Customer Service Representative that assisted us. He was very polite, informative, and a pleasure to work with. We will definitely be purchasing from etrailer.com again. 607967



- AP233
by:

a 604728



- AP233
by:

The suspension parts I bought for my trailer fit perfect as I had hoped. And after a year of service, I have to say they are doing a fine job still. When needed, I assure you I will be ordering from you again. Thank You. 603565



- AP233
by:

Quality products that arrived quicker than expected! There’s not much more you could ask for! Will do business with etrailer again! 602364



- AP233
by:

all fit as expected 592790



- AP233
by:

Product arrived on time and appears to be of good quality. 592118



- AP233
by:

My trailer had 7 3/4 equilizer bars I had to order individually but it went together well. 590474



- AP233
by:

Service and parts very satisfied but do need to let you know that as heavy as parts were should have been in a sturdier shipping container as it was pretty well beat up and torn. Luckily didn't loose any parts 584786



- AP233
by:

Quality, all in one kit. 583720



- AP233
by:

Great product, high quality and perfect fit. Thanks, 579469



- AP233
by:

Great customer service. I got all the right parts I needed. All my trailer parts I purchase from trailer. 577137



- AP233
by:

Very fast delivery and great customer service and great item. Thanks 573910



- AP233
by:

I was very happy with the expedited shipping. I was able to order the correct parts thanks to the well explained measurements and pictures online. 571002



- AP233
by:

Very good service Product fit perfectly with no problems 569641



- AP233
by:

Helped flat bed trailer with weight 561244



- AP233
by:

LOVE IT 558776



- AP233
by:

The product looks great and appears like it will be easy to install. Fantastic service as the parts were ordered on 8/22, received an E-Mail that the order had both been received and shipped on 8/22. The items were received and well packed on 8/25. I would have no problem in recommending the company or the product. 558516



- AP233
by:

Every thing was correct and its installed,just like the sight showed. Loved the price, shipping and ease in getting it. 556307



- AP233
by:

Great price great quality hands down best deal I was able to find 553778


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Show More Reviews

Ask the Experts about this etrailer Trailer Leaf Spring Suspension
Do you have a question about this Trailer Leaf Spring Suspension?


  • Replacement Suspension for Tandem Axle Trailer with 3500 Pound Axles and 24 Inch Double-Eye Springs
  • For 3500 pound axles with 24 inch springs the # SP-216275 is what you need. Springs stretch as they wear out so it's very normal for your measurement to be longer than the new springs. Also, the Tandem Axle Equalizer Kit # AP233 is also great for you. The 1/4 inch extra length isn't going to be a factor and we don't carry 5-1/2 inch equalizers that are 2 inches tall.
    view full answer...

  • Recommended Equalizer Kit for Tandem Axle Trailer with 13-104-02 Equalizers
  • The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs # AP233 is the standard suspension kit. For a heavy duty option, we have the Dexter Axle Heavy-Duty Suspension Kit for Tandem Axle Trailers - 1-3/4" Double Eye Springs # K71-359-00. We also have the E-Z Flex Heavy Duty Rubber Suspension System by Dexter Axle - 5-5/8" Equalizers # K71-652-00. This kit has the shock absorbing equalizer for a smoother ride and grease zerks for easy maintenance.
    view full answer...

  • Replacement Trailer Suspension Components For Tandem Trailer
  • We do not have any equalizers with the dimensions you mentioned. From the looks of the photo you sent it appears the hole may be elongated and you may be able to use an equalizer that has all of the holes at 9/16-inch like part # TREQ356, or with a center hole that measures 3/4 inch like part # TREQ458. You will need to measure the equalizer length and height as well as the holes like the attached drawing shows to find the correct replacement. It looks like the shackles and...
    view full answer...

  • Hanger Spacing for 3500 LB. Tandem Axle Trailer
  • Thank you for purchasing from etrailer! You did a great job selecting compatible parts. When using Leaf Springs # SP-198275 with the # AP233 Equalizer Kit and the # H248 Hanger Kit, there should be 29-1/2" between the front and center hangers and 29-1/2" between the center and rear hangers. This should achieve a 4-1/2" clearance between the center of the axle and the trailer frame if you have a 3500 lb axle. I've Provided a diagram that should be helpful. I've also provided a link to our...
    view full answer...

  • 6k Trailer Leaf Spring and Hanger Kit Availability for Tandem Axle Trailer
  • We have a few 6k leaf springs that could work for you but we need to know the length of the springs that you need. For a 25-1/4 inch spring we have the part # SP-111275. For a 26 inch long spring we have the part # SP-053275, and for a 25-1/8 inch spring we have part # SP-221275. For a tandem axle hanger kit we then have the part # AP233.
    view full answer...

  • Are There Equalizer Kits Available with Replacement Shackles, Bolts and Equalizers
  • Sounds like you are talking about an equalizer kit like the part # K71-449-00 for a heavy duty equalizer setup or the part # AP233 for a standard duty set.
    view full answer...

  • Replacement Shackle Straps For 1999 Ranger Boat Trailer With Tandem Axles
  • On your 1999 Ranger boat trailer with tandem axles, I recommend the Replacement Shackle Link with Bolts for Dexter Trailer Suspension Kits # 018-026-05. If instead you want to piece together your system, I recommend using the Locknut - 9/16" Diameter # TRFA916DLNZ, never fail bushings # LC279684, and galvanized strap # 18-11GALV. If you want to use the regular wet bolts, you can use # 126B2. If you want a complete basic kit, you can use the Tandem-Axle Trailer Equalizer Kit for 1-3/4"...
    view full answer...

  • Equalizer Kit Replacement Recommendation for Equalizers that are 7-1/2 inches Long
  • Since your equalizers are longer than what we have kits for you'll need to piece the kit together you'd need to replace the equalizers, bolts, shackles, and nuts. For the equalizer you'd need to start with the part # TREQE1, then for bolts I'd recommend the wet bolts part # 126B2, for shackles you'd want the part # 115052 which are 2-5/8 inches long.
    view full answer...

  • Equalizer/Hanger Kit Recommendation with Equalizer TREQ356
  • We can piece together an equalizer kit for you, however the TruRyde Equalizer, # TREQ356, is not included in an equalizer kit or a hanger kit. Next, you will need 14 shackle bolts that are 3 inches long and have a 9/16 inch diameter. For this, you can use Shackle Bolt, # 166081. Finally, you will need 8 shackle straps. The most common size is the 2-5/8 inch shackle strap, # 115052. I recommend measuring your current shackle straps to verify you are buying the correct replacement...
    view full answer...

  • Typical Hanger Spacings for Tandem Axle Trailer with 3,500 lb Axles
  • A lot of it depends on the length of the springs and equalizers that are used. When using Leaf Springs # SP-198275 with the # AP233 Equalizer Kit and the # H248 Hanger Kit, there should be 29-1/2" between the front and center hangers and 29-1/2" between the center and rear hangers. This should achieve a 4-1/2" clearance between the center of the axle and the trailer frame if you have a 3500 lb axle. I've Provided a diagram that should be helpful. I've also provided a link to our trailer...
    view full answer...

  • Available Shackle Link Hole Spacing
  • The shackle straps included in kit # AP233 are the part # 18-11GALV. The hole spacing, center to center, is 2-1/4-inches. The shackle strap closest to 2-1/2-inches is part # TRSL256, on which the center to center hole spacing is 2-9/16-inches.
    view full answer...

  • Finding Correct Replacement Tandem Trailer Axle Equalizer Kit
  • As long as the new equalizer has the same hole spacing as the existing equalizer, it'll work just fine. You'll also want to make sure the height of the equalizer is also the same. Put a ruler across the center of the two bottom bolt holes, and measure up to the center to the top bolt hole. If this distance is about two inches, then the # AP233 would be the correct replacement.
    view full answer...

  • How to Choose the Correct Equalizer
  • There is unfortunately no master list of every part number of every model of every year of trailer, so you would need to measure to find replacements. For example, equalizer # TREQE1 fits 1-3/4" wide, double-eye leaf springs with 9/16" spring eyes, has bolt hole diameters of 9/16" and is 7-3/4" from center of bolt hole to center of bolt hole.
    view full answer...

  • Are Nuts that Come with Trailer Suspension Kit # AP233 Lock Nuts
  • The threads of the nuts that come with the Suspension Kit for Tandem-Axle Trailers # AP233 that you referenced are considered lock nuts. They should thread pretty tightly once the nut gets significantly onto the bolt which prevents it from backing off.
    view full answer...

  • Where is Trailer Suspension Equalizer Length Measured
  • The equalizers in trailer suspension hanger kit # AP233 are 5-3/4 inches long measured from the center of one spring eye to the center of the other spring eye. I have included a picture illustrating this for you.
    view full answer...

  • Tandem Axle Equalizer Kit Recommendation with 6-1/8 inch Long Equalizers
  • I can piece you together everything you need, but there isn't a kit like the part # AP233 that you referenced that has a 6-1/8 inch long equalizer. First you would want the part # TREQ356 as an equalizer. You would need two of them. A quantity of 8 of the shackle straps part # TRSL225 14 of the bolts part # 166081
    view full answer...

  • Can 5-3/4 Inch Tandem Axle Equalizers be Replaced with 5-5/8 Inch Equalizers
  • The Tandem-Axle Equalizer Kit, # AP233, will work as long as all other measurements are the same. Check that your shackle straps are 2-1/4 inches from center hole to center hole. The 5-3/4 inch long equalizer, # TREQ104, we carry is a direct replacement for the 5-5/8 inch long equalizer.
    view full answer...

  • Do Trailer Suspension Equalizers Carry Weight Ratings
  • Trailer suspension equalizers like # TREQ104 do not carry weight ratings but they are available in many different sizes. They will handle as much weight as any springs you'll be using with them. Part # TREQ104 measures 5-3/4-inches between its lower hole centers and kit # AP233 includes this same item among its component parts.
    view full answer...


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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Updated by:
Sarah W
Updated by:
Alexander C
Photos by:
Stacy F
Updated by:
Brian T

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