Product Description
12K Tandem Trailer Axle Kit | 24K GVWR | HDSS Hutch Suspension | Hydraulic Disc Brakes | Dual Wheel Setup
Everything You Need to Install and Haul Heavy
The Carter 12K Tandem Trailer Axle Kit delivers unmatched stopping power and strength with its Hydraulic Disc Brake system and upgraded HDSS Hutch Heavy-Duty Suspension.
Built to handle 24,000 lbs GVWR, this complete package includes everything you need—axles, suspension, U-bolts, and your choice of dual tire and wheel combos—to build a serious trailer ready to work.
All Carter Axles are 100% fully interchangeable with Dexter Axles and parts, so every bearing, seal, hub, rotor, and brake pad can be replaced anywhere nationwide using Dexter-compatible components.
Kit Includes
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(2) 12K Hydraulic Disc Brake Trailer Axles – 8x6.5" bolt pattern
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(4) 72-48 HDSS Hutch 3-leaf slipper springs (11,200 lb rated, 42" long, 3" wide)
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(2) HDSS U-Bolt Kits (3/4" dia x 12" long U-bolts with nuts)
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(1) Complete HDSS Hutch Tandem Suspension Kit
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(8) Dual Trailer Tire & Wheel Combos – your choice of style and ply rating
Everything you need to install your axles and suspension, mount your tires and wheels, and get your trailer hauling heavy down the road.
Axle Specifications
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Capacity: 12,000 lbs per axle
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Bolt Pattern: 8x6.5"
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Tube Diameter: 5" round
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Inner Bearing: 3984
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Outer Bearing: 28682
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Seal: 10-56
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Brakes: Hydraulic Disc Brakes with Rotors and Pads (Dexter compatible)
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Studs: 5/8"
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Hub Diameter: 4.75"
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Lubrication: Oil or grease compatible
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Finish: Powder coated for corrosion resistance
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Hub Caps: Upgraded forged aluminum oil hub caps
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Hardware: Swivel flange nuts included
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Spring Pads: #3-403 HDS Hutch spring pads (pre-welded or loose – your choice)
Need custom spring pad spacing?
Call 844-898-8687 – we can weld them in place before shipping for a small additional charge.
U-Bolt & Spring Details
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Part #72-48: HDSS Hutch 11,200-lb 3-leaf slipper spring, 42" long x 3" wide
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Part #UBHDS-1175: 3/4" dia x 12" long U-bolts with nuts (for Hutch Suspension)
HDSS Hutch Suspension Kit Includes
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(2) Rear Hangers – 30-75-5
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(4) Tie Plates – 12-068
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(2) Fixed Track Rods – 19.25" (62-11-1)
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(2) Center Hanger & Equalizer Kits – 29-49-1
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(2) Hutch Equalizers – EQHDS
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(2) Adjustable Track Rods – 62-1-1
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(2) Front Hangers – 28-82-5
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(8) 1"-8 x 5-1/2" Equalizer Bolts – 007-169-00
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(8) 1"-8 Lock Nuts – 006-112-00
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(6) 5/8"-18 x 4.5" Keeper Bolts – 7-294
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(6) 5/8" Lock Nuts – 6-126
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(6) Keeper Bolt Sleeves – 33-91
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(2) 1-1/8"-7 x 6" Equalizer Bolts – 007-170-00
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(2) 1-1/8"-7 Lock Nuts – 006-072-00
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(2) 1-1/8" Washers – 118W
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(8) 7/8" U-Bolts with nuts – UBHDS-1175
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(4) 72-48 HDSS Hutch Slipper Springs
Why Choose Carter Axles
100% Interchangeable with Dexter Axles and Parts – Bearings, seals, rotors, and brake pads match Dexter numbers for nationwide serviceability.
Hydraulic Disc Brakes – Superior stopping power and heat dissipation for heavy-haul trailers.
Built for Heavy Loads – 5" round axle tubes, forged oil caps, and HDSS suspension handle serious weight.
Complete Kit – Everything included for install and setup.
Custom Options Available – We can pre-weld spring pads to your measurements.
Why HDSS Hutch Suspension Beats Standard Spring Suspension
The HDSS Hutch system is engineered for commercial and industrial trailers that haul heavy every day. Compared to standard spring suspensions, the HDSS setup uses forged hangers, adjustable track rods, and equalizers that keep axles aligned and ride height consistent.
This results in:
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Less axle walk and tire wear
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Better stability and load balance
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Longer bushing and spring life
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Smoother ride on rough roads
Bottom line: HDSS Hutch is a true upgrade for anyone who wants strength, alignment, and long-term durability beyond what standard suspensions offer.
Summary
The Carter 12K Tandem Axle Kit with Hydraulic Disc Brakes and HDSS Hutch Suspension is the superior choice for heavy-duty dual-wheel trailers. Designed for easy maintenance, nationwide Dexter-compatible part replacement, and unmatched ride stability, this kit is built to haul heavy and built to last.
Carter Axles — Top Quality Without the Big-Box Markup.
TrailerPartsUnlimited.com | 844-898-8687
