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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:$65.35
Our Price: $59.46
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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   (488 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:

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:

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



by:

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



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:

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



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:

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:

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:

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:

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:

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:

Kit should include spring bushings



by:

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



by:

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



by:

Everything came on or before expected and fit perfectly



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:

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.


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Show More Reviews

See what our Experts say about this etrailer Trailer Suspension Parts

  • 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...
  • Trailer Equalizer Kit Recommendation that are 5 inches Long
    Best option we have would be the part # APT5 which comes with equalizers that have outer bolts that are 5-3/4 inches apart on center which would be close enough to work in your application. The shackle straps are 2-1/4 inches long and the bolts are 9/16 inch which is the standard diameter for trailer suspension bolts.
    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 # 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...
    view full answer...
    Image 1 for
  • Compatibility of the Suspension Kit for 6,000 lb Axle
    The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links # AP233 is not only for under 3,500 lb axles. It is for 33 inch spacing. The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 3-1/8" Links # e99ZR and Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs # K71-359-00 are also for this same spacing. The leaf springs and the u-bolt mounting hardware varies based on axle capacity,...
    view full answer...
  • How to Pick Out Axles and Leaf Springs for Trailer with 4k Capacity and Tandem Axles
    You are going to need to know a few dimensions of the axle your trailer will need as well as the capacity it needs to be to pick out the correct one. First measurement needed is the spring seat to spring seat center dimension for the axle you'll need. This dimension is where the axle will attach to the trailer frame so you'd want to measure from the center of one frame channel to the next. Next you'll need to know where you want the center of the wheels to be. That dimension is referred...
    view full answer...
    Image 1 for
  • How to Choose Correct Replacement Leaf Springs and Equalizers for a 2021 Coachmen 259FKDS
    The determine the correct replacement leaf spring on your 2021 Coachmen 259FKDS you'll need to lift your trailer frame so the spring is hanging freely and then measure from center-eye to center-eye, then for the equalizer you need to measure center-eye to center-eye for the horizontal bolts and then from the center of the top eye to the centerline of the horizontal eyes. Be sure to also note your axle weight rating as well. I'm attaching dimensional photos from the Leaf Spring #e22YR...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • 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 # e34SR. For a 26 inch long spring we have the part # e94SR. For a tandem axle hanger kit we then have the part # AP233.
    view full answer...
  • How to Determine Front and Rear Hanger Location on my Tandem Axle Trailer
    To correctly position your hanger like the Front/Center/Rear Hanger for Double-Eye Springs part # 28-5 you will take the length of your springs that is 25 1/4" plus half the equalizer length. Take the spring plus 1/2 equalizer measurement and add 3/4" to 1". You will use this measurement for the distance between the center bolt hole of the center hanger to the center bolt hole of the front and rear hanger. For instance the equalizer in the Suspension Kit for Tandem-Axle Trailers part #...
    view full answer...
  • Replacement Suspension Components for Tandem Axle Trailer With 6k Dexter Axles
    Thank you for providing that information. What you have is a 6,000 lb Dexter axle. Based on the axle capacity and your leaf spring measurement you can use the 4-Leaf Double-Eye Spring # e47SR which measures 25-1/8" long. The slight difference in length isn't going to make a difference. For an equalizer replacement you can use the Curved Equalizer for 1-3/4" Wide Double-Eye Springs # TREQE1. This measures 7-3/4" long x 2-7/8" tall. For the rest of the components I highly recommend upgrading...
    view full answer...
  • Replacement Equalizers and Leaf Springs for Tandem Axle with 3,500 lb Axles
    Sounds like it's a good time to replace all of the leaf springs and equalizers. So for springs the part # e54SR would be a great option as this is a tiny bit shorter than your current springs (they stretch slightly over time), and they are rated for 3,500 lb axles. Then for an equalizer kit the part # AP233 would replace all of your bolts, equalizers, shackles, and nuts.
    view full answer...
  • Do Trailer Suspension Equalizer Kits Come with Leaf Spring Bushings
    Most leaf springs for trailers come with bushings so the equalizer kit part # AP233 does not include them. We offer some bushings though if you are in need of them. I attached a link to a page that has all of them. You will need to determine the inner and outer diameters that you need plus the width. A very popular one is the part # TRBU11566 that has an ID of 9/16 inch, is 1-3/4 inches long and has an OD of 11/16 inch.
    view full answer...
  • Should Bolts of AP233 Suspension Kit be Greased
    Yes, it is a good idea to go ahead and add grease when installing the Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links # AP233. You don't want to use fat though, just go ahead and use the LubriMatic Multi-Purpose Lithium Grease # L11316.
    view full answer...
  • 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...
    view full answer...
    Image 1 for Image 2 for
  • 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...
  • What is Difference Between Suspension Kit for Tandem-Axle Trailers and K71-359-00
    The Suspension Kit part # AP233 is more of a basic equalizer and shackle kit that uses standard thickness shackles. The Dexter Heavy Duty Kit part # K71-359-00 uses shackles that are very thick, comes with bronze bushings and all of the bolts are wet bolts which means you can easily grease them. If you want something that is the best and toughest option go with the Dexter. If you are trying to save some money and don't think you'll need the super heavy duty components go with the # AP233...
    view full answer...
  • Bolt Grade of Hardware that Comes with the Suspension Kit for Tandem-Axle Trailers AP233
    Hey Rob, the bolts that come with the equalizer kit part # AP233 that you referenced are Grade 5.
    view full answer...
  • Should You Replace All 3-1/4 Inch Hangers With 3-5/8 Inch Center Hangers
    Hey Ryan, You want to keep all your hangers the same size they were previously or the suspension could get out of whack (to use a less than scientific term). So assuming the equalizer and shackles of the # AP233 are the same size you had, then replace your 3-1/4" hangers with the same size, and you can get that with the Front/Center/Rear Hanger for Double-Eye Springs - 3-1/4" Tall # 28-5.
    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...
  • 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 # 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...
    view full answer...
    Image 1 for
  • 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...
  • Availability of 8 inch Long Straight Trailer Suspension Equalizer
    We do not have any standard trailer equalizers that are 9 inches long from eye to eye. Is this a slipper spring setup by chance?
    view full answer...
  • 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.
    view full answer...
  • How Tight Should Shackle Link Nuts Be On Trailer Suspension
    In regards to trailer suspension kits like the Suspension Kit for Tandem-Axle Trailers part # AP233, the shackle bolt heads are indeed seating into the hangers via the knurling on the bolt. If you hold a wrench on the bolt head and tighten the nut, this will seat the knurling. The bolt does not pivot on the outer shackle links but rather the spring/equalizer pivots on the bolt. There is no torque spec for this bolt/nut, you'll stop tightening when the spring/equalizer does not have any...
    view full answer...
  • Do the Equalizers of Kit # AP233 Have Bushings
    Yes, there is a bushing inside the equalizer kit part # AP233 that you referenced.
    view full answer...


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