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Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links

Item # AP233
Retail:$65.59
Our Price: $59.38
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Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing. Great Prices for the best trailer suspension parts from etrailer. Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links part number AP233 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Suspension Parts - AP233

  • Standard Equalizer
  • Camper
  • Car Hauler
  • Utility Trailer
  • Double Eye Springs
  • 5-3/4 Inch Long
  • Tandem Axle
  • 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.


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:
    • Distance between outer shackle bolt holes (center on center): 5-3/4"
    • Distance between hanger bolt hole and shackle bolt hole (center on center): 2-7/8"
    • Height of side bolt hole to hanger bolt hole: 2"
  • Shackle strap length: 2-1/4" from center hole to center hole
  • Bolt dimensions: 3" long x 9/16" diameter


Dimensional Diagam


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 - 2-1/4" Long Shackle Straps

Replaces AP233





Customer Satisfaction Score:


Customer Reviews

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links - AP233

Average Customer Rating:  4.8 out of 5 stars   (486 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.

by:

Got the kit today. Some of the nuts were oval and would not fit on the bolt of course. Now I have to go to box store and find nuts that fit! Not very good quality control!!

Etrailer Expert

Brooke M.

5/22/2023

Thanks for bringing this to our attention. I have already let our customer service team know, and they will be reaching out to you.



by:

The parts shipped to me a day earlier than I expected. I was able to install one side that same evening. Finished the other side the next day. Plan on going camping next weekend. The parts seemed to be of good quality. The installation was straightforward.



by:

We have had great experience with eTrailer, These parts came in as described.



by:

This is exactly what I needed, Perfect fit, Easy installation. Old suspension worn out.



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.



by:

Everything I ordered was correct and nothing missing. matching exactly to existing parts just like in photos



by:

Nice kit, everything fit like it should, easy to install, with the wear this trailer had, obviously had to do a little tapping here and there.



by:

It works as advertised….. what more do u need?



by:

great construction, but the screw to connect to the trailer was not long enough.



by:

Full disclosure: we boat in brackish water in Florida, but I always hose the trailer down afterward.
Springs work as they should and installation was straightforward. However, I’m not sure how long they’ll last. After only 5 or 6 launches/ retrievals last year, this is what they look like now. The springs and equalizer must’ve been spray-painted at the factory, not powder-coated. I believe made in China. I even soaked the bolts and links in motor oil before installing to stave-off corrosion. I just hope we don’t have a failure on the road any time soon because of this accelerated corrosion!



by:

Excellent replacement parts for worn out trailer suspension. Fitment was great. And shipped fast.



by:

Order complete and was shipped timely



by:

Sent me exactly what I needed and was great customer service helping me find what I needed and very polite and helpful!!! I will always recommend you guys and use you in the future!! Thanks again



by:

Parts arrived as advertised. Installed them on my trailer with new leaf springs. All is well that ends well.



by:

Worked fine. Everything arrived on time and the order was complete. The hardest part was pressing the bolts into place.



by:

The products worked exactly as they sho uld



by:

Kit should include spring bushings



by:

Converted my 30 ft home built trailer to carry my 25 ft sailboat with 3 1/2 ft keel. I needed new springs to carry her weight Your parts arrived on time. So far all is going well on the upgrade. Thanks for the positive information and can do attitude of your company.



by:

Still working great. 12,000 hard miles on them so far.



by:

The suspension kit was just what I was expecting they are high Quality for the price I payed I would definitely get parts from etrailer again.

John

4/6/2023

The suspension kit that I purchased is great I have had the Leafspring’s in my 5th wheel for a year now and they have made a great difference in how smooth my fifth wheel pools.



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.



by:

Everything came on or before expected and fit perfectly



by:

Great product. I would recommend it to a friend.



by:

Good replacement, fits perfect. I forgot to order spring bushings for springs so keep that I mind if u order this. This kit comes with all bushings needed except springs, for tandem axle 8 would be needed.



by:

Exactly what I needed to repair my older trailer and make it safe again. Fit exactly the way they should. Fast shipping.


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See what our Experts say about this etrailer Trailer Suspension Parts

  • 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.
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  • 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.
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    Image 1 for
  • Availability of 8 inch Long Straight Trailer Suspension Equalizer
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    Hanger height and spacing, spring length, shackle length and equalizer size are all variables in a trailer suspension and it is possible that the same length springs can fit in more than one application. The dimensions on the included charts are just meant as a guide. You should have no trouble at all using the 5-5/8-inch E-Z Flex Heavy Duty Rubber Suspension System # K71-652-00 since it has an operating width range of 5-1/4- to 6-1/4-inches. But you may still need to re-position your...
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  • How Tight Should Trailer Suspension Hanger/Equalizer Bolts Get Torqued
    Suspension bolts are not designed to be torqued down tightly as this prevents the suspension from being able to move like it needs to be able to do. So the included solution with the kit part # AP233 is the lock nuts of the kit. The nuts have nylock in them which means that they will not back off regardless of how "loose" they are installed on the bolts. Basically you tighten the nuts down so that the excess side to side movement is removed from them but the shackles can still freely move...
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  • 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 # e64SR 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 maintenance...
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  • 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.
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  • 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.
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  • Recommended Equalizer Kit For 5,000 lb Axles On Tandem Axle Trailer
    The Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs - 5-3/4" Long # AP233 is designed for use on trailers with tandem, 2,000-lb to 7,000-lb axles. This means it is rated for systems with up to a total weight of 14,000 lbs. This will be a kit that absolutely can be used for your tandem 5,000 lb axles. You may also want to consider the Tandem-Axle Trailer Hangers for 1-3/4" Wide Double-Eye Springs - 3-1/4" Tall Front # H248 if you don't have hangers for your system yet.
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  • Replacement Equalizers Needed for EZ Loader Boat Trailer
    When it comes to determining which equalizers are needed for your EZ Loader boat trailer, you will need to get some measurements. I have included a diagram with information as to what measurements are needed. I have also included a link to our equalizers and once you have the measurements you can use the filters on the page to narrow the search. It has already been narrowed down to those for the 1-3/4 inch spring. If you would still like to send me the picture and also your equalizer measurements,...
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  • Replacement Leaf Spring and Equalizer Kit for Trailer with 5,200 lb Axles
    For leaf springs you would want the part # e34SR which is a 25-1/4 inch long leaf spring that is rated for a 6k axle. The shorter length of this would match up well with what you have now. Then for a U-bolt kit you would want the part # APUBR-8 which is correct for 3 inch diameter axles. Then for a tandem axle equalizer and shackle kit you'd need the part # AP233 and you'd be set.
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  • 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 bolts...
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  • Upgraded Equalizers and Shackle Straps for a 2017 Eclipse Attitude 5th Wheel Toy hauler
    To upgrade your 2017 Eclipse Attitude 5th Wheel Toy Hauler's equalizers you will want the MORryde Rubber Equalizers for Tandem Axle Trailers - 33" Wheelbase - 8K item # MR87ZR. These equalizers have rubber inserts that dampen road shock. They provide up to 3" of suspension travel and reduce back-and-forth chucking. For an upgraded set of shackle straps that have wet bolts with built-in grease fittings I recommend the MORryde Suspension Upgrade Kit for Tandem Axle Trailers w Correct Track...
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  • What Is Normal Deflection Of Leaf Springs On Trailer
    The typical spring deflection for leaf springs on a trailer is up to 1-1/2 inches when at capacity. The recommended clearance with leaf spring suspension on an unloaded trailer is between 2 - 2-1/2 inches. It sounds like you have a little more than that since you flipped your axle. Leaf springs only tend to deflect about 1-1/2 inches when carrying a load.
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  • Replacement Trailer Shackle Recommendation to Replace Shackle that is 2-1/2 inch on Centers
    The closest shackle we offer to the 2-1/2 inch size you need is the part # 115052 which is 2-5/8 inches from hole center to center. This would only be 1/8 of an inch larger than what you need so it would work well.
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  • 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.
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  • Determining What Hanger Spacing For Tandem Axle Trailer Using 28-3/4" Long Leaf Springs
    I would be happy to help, but the only way to find the exact location for mounting the hangers to your boat trailer is going to be by tacking the hangers in place and moving them around until you get the suspension correct. When done correctly the shackle straps on the equalizer should point like a W like in the included picture. Your 730mm spring translates to 28-3/4" which is not a very common length so there is not exact hanger spacing anywhere for a spring that length. On all of the...
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  • Availability of 7-1/4 inch Equalizer Kit with Shorter 2-1/4 inch Shackle Straps
    Yes we do have a version of the equalizer kit part # e99ZR that has shorter shackle straps with the part # AP233 which has 2-1/4 inch length shackles instead.
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  • 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.
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  • Replacing Suspension Components On A 2005 Fabrique Boat Trailer
    I can certainly point you in the right direction. I am not able to recommend leaf springs and brackets based on a model of trailer or Vin number. If only it were so easy right? Generally only the manufacturer of the trailer will have that kind of information. When replacing leaf springs we do want the new springs to be basically identical to the old springs. The best way is for your to measure each spring. Double eye leaf springs are measured across from center eye to center eye. It is...
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  • Replacement Trailer Suspension Parts for Trailer with 2 Square Axle
    It looks like you've got a pretty good grasp on all of this and thank you for the detailed information; it looks like most of the parts you've mentioned will work for you. For the leaf springs, the 26" long # e27SR will be the best option for you since springs stretch out over time and they're right around the capacity of what the axles likely is. The next closest size would be the 25-1/8" # e54SR, but I would be hard pressed to believe that your old ones have stretched out over a full...
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    Image 1 for Image 2 for
  • Do I Need Shorter Straps or Taller Equalizer for My Trailer with Double Eye Leaf Springs
    Considering all that has been done so far, I think the first step I would take here is to go with the shorter shackle straps. If you're still getting contact with the trailer frame, I would then take a look at upgrading to a taller equalizer like the Dexter EZ-Flex # 013-144-03 or you could have the front and rear hangers cut off and welded back on 1/2" further from each other in each direction. I've linked our selection of shackle straps to this question so you can find what you're looking...
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  • Should Shackle Bolts on Trailer Suspension Get Lubrication
    Yes, I would recommend keeping the bolts of the # AP233 lubricated. An easy way to do this is to use wet bolts like part # 126B2 which have a zerk fitting that allows for easy application of grease to them.
    view full answer...
  • Suspension Parts Needed for 3,500 lb Tandem Axles and 29-1/2" Hanger Spacing
    Thanks for all of the information, Robert! It sounds like you have the Tandem-Axle Trailer Hangers # H248 installed on your tandem axle trailer so to get your Dexter Trailer Axle w/ Electric Brakes # 7359765-EB installed you need the following parts: - 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles # e54SR - CE Smith U-Bolt Kit # CE23002 - Suspension Kit for Tandem-Axle Trailers # AP233 You need a total of 4 leaf spring, 2 of the U-Bolt kits, and just one of the suspension kits...
    view full answer...


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