Product Description
Everything You Need to Install and Haul Heavy Loads
This Carter 12K Tandem Trailer Axle Kit delivers extreme strength, superior braking, and commercial-grade suspension control. Designed for heavy-haul trailers up to 24,000 lbs GVWR, this kit includes HDSS Hutch heavy-duty suspension, hydraulic disc brake axles, and four 17.5” super single tire and wheel combos—a high-capacity setup trusted by serious haulers.
Every Carter axle is 100% fully interchangeable with Dexter axles and parts, so all bearings, seals, brakes, hubs, and rotors match standard Dexter part numbers for easy nationwide service and replacement.
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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(4) 17.5” SUPER SINGLE Trailer Tire & Wheel Combos — your choice of style and ply rating
Everything arrives ready for installation—axles, suspension, U-bolts, hangers, equalizers, and wheels. Just bolt on and start hauling.
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
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Studs: 5/8"
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Hub Diameter: 4.75"
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Lubrication: Oil or grease
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Finish: Powder coated
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Hub Caps: Upgraded forged aluminum oil 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?
We can weld them before shipping.
? Call 844-898-8687 to customize your axle.
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 w/ 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% Dexter-Compatible
Every bearing, seal, rotor, and brake pad matches Dexter numbers for easy replacement anywhere in the country.
Built to Haul Heavy
5" axle tubes, forged aluminum caps, hydraulic disc brakes, and Hutch suspension are designed for serious weight.
Complete Kit
Everything required for installation—axles, suspension, pads, U-bolts, and wheels.
Commercial-Grade Suspension
HDSS Hutch provides superior alignment, stability, and long-term part life compared to standard leaf setups.
Custom Options Available
We can weld spring pads to your exact dimensions before shipping.
Why HDSS Hutch Suspension is Better
HDSS Hutch is engineered for commercial heavy-haul trailers that run daily. Compared to standard leaf suspensions, it delivers:
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Less axle walk
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Reduced tire wear
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Better alignment
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Improved stability
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Longer spring and bushing life
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A smoother ride on rough terrain
If you want strength, control, and longevity—Hutch is the industry upgrade.
Summary
The Carter 12K Tandem Trailer Axle Kit with HDSS Hutch Suspension and hydraulic disc brakes is the ultimate heavy-haul system for commercial-grade single-wheel trailers. With nationwide Dexter-compatible components and high-capacity 17.5” super singles, this 24K GVWR package is built to perform under real-world load.
Carter Axles — Top Quality Without the Big-Box Markup.
TrailerPartsUnlimited.com | 844-898-8687
