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Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear/Center
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Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear/Center

Part Number: APT9
In Stock
$55.36
Trailer Suspension Parts
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Leaf-spring mounting kit includes 2-1/2" tall front, center, and rear hangers and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately. Great Prices for the best trailer suspension parts from etrailer. Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear/Center part number APT9 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Suspension Parts - APT9

Highlights

  • Handles 2,000-lb to 7,000-lb axles: Works for a wide range of tandem trailer setups.
  • 2-1/2" Tall Hangers: Sets correct spring height for stable suspension movement.
  • 7-3/4" Long Equalizers: Distribute trailer weight evenly between both axles.
  • 29-1/2" Hanger Spacing: Keeps proper axle alignment and tire clearance.
  • 3-3/4" Axle-to-Frame Clearance: Ensures safe suspension travel with 3" axles.
  • Includes Bolts, Nuts & Shackles: Provides essential hardware for spring mounting.
Made in USA

Features to know about

Smooth, Balanced Towing Every Mile: 7-3/4" Equalizers Distribute Load Evenly

When your trailer hits bumps or uneven ground, you want both axles working together instead of fighting each other. The 7-3/4" long curved equalizers in this kit make sure of that. They keep the weight spread evenly across both axles so the ride stays level and the suspension works smoothly without overloading one axle. It’s a simple, proven design that keeps your setup steady mile after mile.

Reliable Mounting for Heavy Loads: 2-1/2" Tall Front, Center, and Rear Hangers

A solid hanger setup is what keeps the whole suspension anchored. This kit includes six 2-1/2" tall hangers—front, center, and rear—so you get consistent geometry and strength across your tandem suspension. Each hanger provides a firm connection point for the springs and equalizers, built to handle trailer axles rated from 2,000 lbs up to 7,000 lbs. With all three hanger positions matching in height, alignment is simple and dependable.

Right Geometry for a Stable Ride: 29-1/2" Hanger Spacing and 33-1/2" to 34" Axle Spread

Getting the spacing right is key to how smoothly the suspension moves. The recommended on-center distance between hangers is 29-1/2", which pairs perfectly with standard 25-1/4" long double-eye springs. That setup gives an axle spacing between 33-1/2" and 34", keeping tire clearance and load balance right where they should be. It’s a well-tested layout that takes the guesswork out of building or refreshing a tandem-axle suspension.

Durable Hardware That Goes the Distance: Bolts, Shackles, and Locknuts Included

Everything in this kit is matched to work together. You get (8) 2-5/8" long shackle straps, (14) 3" x 9/16" diameter shackle bolts, and (14) matching 9/16" diameter locknuts that stay secure under road vibration. The hardware connects smoothly through the hangers, equalizers, and springs so you can count on a tight fit that resists wear and movement over time.

Built for Practical Upgrades and Repairs: All in One Kit for Double-Eye Springs

Whether you’re replacing worn components or building from scratch, this kit has what you need to attach four double-eye leaf springs to your trailer frame. It simplifies setup by bundling all hangers, equalizers, shackles, bolts, and locknuts together—everything but the springs and axle hardware—so you can focus on getting your trailer rolling straight and smooth again.

Specs

Kit Components

  • Front, center, and rear hangers: (6) 2-1/2" tall
  • Equalizers: (2) 7-3/4" long curved
  • Shackle straps: (8) 2-5/8" long
  • Shackle bolts: (14) 3" long x 9/16" diameter
  • Locknuts: (14) 9/16" diameter

Compatibility

  • Axle configuration: Tandem
  • Axle capacity: 2,000-lb to 7,000-lb axles
  • Spring type: Double-eye leaf springs
  • Designed for use on trailers with: Tandem, 2,000-lb to 7,000-lb axles
  • Components for mounting axle to springs: Sold separately

Dimensions

  • Equalizer length: 7-3/4"
  • Hanger height: 2-1/2"
  • Shackle strap length: 2-5/8"
  • Shackle bolt length: 3"
  • Shackle bolt diameter: 9/16"
  • Locknut diameter: 9/16"

Hanger Spacing and Axle Distance

  • Leaf Springs: SP-218275, SP-220275, SP-115275, SP-111275, SP-212275, SP-221275
  • A - Distance Between Front and Center Hangers: 29-1/2"
  • B - Distance Between Center and Rear Hangers: 29-1/2"
  • C - Distance Between Axles: 33-1/2" to 34"
  • D - Distance Between Center of Axle and Trailer Frame: -
  • Axle Diameter: 3"

Technical diagram of tandem-axle trailer hanger spacing showing labeled dimensions A through D for hanger and axle distances, with measurement table for the APT9 double-eye spring hanger kit.

  • A - Distance Between Front and Center Hangers
  • B - Distance Between Center and Rear Hangers
  • C - Distance Between Axles
  • D - Distance Between Center of Axle and Trailer Frame

TSW-15 Tandem Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Replaces APT9





Ratings & Reviews

4.7

714 reviews
Review sort icon
Leaf-spring mounting kit includes 2-1/2" tall front, center, and rear hangers and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.

by:

Product looks like good quality. Have not tested it yet. Paid extra for 2 day delivery got it in 3. would buy again.



by:

Just what I thought it was, perfect



by:

Just what I thought it was, perfect



by:

My order came earlier than expected



by:

Fast shipping, correct parts and great price.



by:

Great product, Great price and fast shipping.



by:

Items were received as advertised, in 2 days. No issues whatsoever. Would definitely purchase from etrailer again.



by:

Perfect replacement. Don't forget to order u bolts they are separate.



by:

SHIPPING QUICK,PRICE CHEAPER THAN OTHER SITES,REVIEWS MADE IT EASY TO GET RIGHT PARTS.THANKS



by:

Holding up well, used to build a trailer that's used a lot. Good value for the price



by:

These parts look more heavy duty than the original and quick shipping



by:

The original box that was shipped got damaged and lost a few parts. I contacted customer service and they shipped me the missing parts no charge. Another good experience.



by:

Very happy with product. Very happy with seller. The products were exactly what I needed for my trailer.



by:

Was everything I needed for trailer rep air.



by:

Quick shipping, great products, and what I ordered



by:

Purchased springs and hanger kit for tandom axle trailer,
They look great.



by:

Products were easy to find online, each item was described accurately, shipping was free for an order over $100.00 and very prompt. I highly recommend etrailer.com!!!



by:

I actually ran into the site by accident. I initially purchased a few items from a big box store and after reading and educating me on line I returned some of the items I previously purchased. I was able to return all items and for the almost the same price rebuilt my entire trailer.



by:

EXACTLY WHAT I WAS LOOKING FOR. QUICK SHIPPING, GREAT PRICE



by:

Overall Good. I couldn't get the order tracking to work from my email but when I called and got the delivery date it was on time. Cheapest trailer parts I could find I even told to a a friend who sell some parts and these prices where lower than him at cost.



by:

I had a trailer kit for the tandom axle horse trailer. It came with more than I needed or installed in my application but a year later it's working great, thanks.



by:

Great service, pricing and technical advice from Paul. I’m lucky I found this company. Parts cost me $300 but a replacement trailer would have cost me $2000.00. Thank you Paul and staff for your service and product.



by:

The equalizer kit was part of a trailer suspension rebuild. The complete kit was less expensive than an equalizer only kit. I did not need the frame brackets but they are as good if not better than the OE brackets. This is an excellent kit to use when building or repairing a tandem axle trailer. After several uses, all parts are working as expected.



by:

What I love about etrailer.com is the fact that it's one stop shopping. Everything that I needed to rebuild my trailer was right there on their sight, and FREE shipping for orders over $100 Sweet!

Thomas profile picture

Thomas

11/12/2020

One year out after the install and everything is holding up well...as expected! Very happy with my purchase.



by:

My order took 23 days to receive. Absolutely ridiculous, I could have ordered the same kit from another site with guaranteed 3 day shipping. Next time I will.


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  • Why Do Tandem Axle Trailers Need Equalizers Instead Of Independently Mounted Axles?
    Hello Randall, that is a good question. To sum it up, the equalizer allows both axles of a tandem or triple axle setup to bear the full weight of the trailer equally, hence the name. Lets say you had a tandem axle trailer with two independently mounted axles. Now say you go over a bump or elevation change. Without an equalizer, one single axle would be taking on most of, or the entire weight of the trailer for a brief second. This would immediately overload the axle and likely cause irreparable...
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  • Is a Mounting Kit Needed to Install 4-Leaf Double Eye Leaf Springs
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  • What Hanger Kit To Use For Tandem Axle Trailer With 2,000 lb Axles
    Hello Torrey, thanks for reaching out. Generally with a 2,000 lb axle setup you would want each hanger to be the same height. Using a taller hanger will increase the deck height, and shorter hangers will bring it lower. So if you want a lower ride, you could use a kit like the # APT9 kit which comes with 2-1/2" tall hangers. Or to bring it higher use # APT5 which is 3-1/4" tall hangers. This could also help get you more clearance between the tires and fenders if needed. I have linked...
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Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Cole B
Installed by:
Cole B

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