Product Description
The 6K-KIT04 Single Axle Trailer Kit includes everything needed to replace or build a complete 6000 lb trailer axle system. Designed for utility trailers, equipment trailers, cargo trailers, landscape trailers, and custom builds, this package includes a Carter electric brake axle, suspension components, mounted tire and wheel assemblies, and optional hanger kit.
Built with a heavy-duty 3 inch axle tube and self-adjusting electric brakes, this axle is designed to provide reliable braking performance and long service life. Carter trailer axles are fully interchangeable with Dexter, Lippert, AL-KO, Hayes, Rockwell American, and many other trailer axle brands.
Kit Includes
- (1) 6,000 lb Carter Electric Brake Trailer Axle
- (2) 6 Leaf Double Eye Springs
- (1) 3 Inch U-Bolt Kit
- (2) Mounted Trailer Tire and Wheel Assemblies
- (1) Single Axle Hanger Kit (Optional)
Carter 6K Axle Specifications
- Axle Capacity: 6,000 lbs
- Axle Brand: Carter
- Bolt Pattern: 6 on 5.5
- Brake Size: 12 Inch x 2 Inch Self Adjusting Electric Brakes
- Axle Tube Diameter: 3 Inch
- Axle Tube Wall Thickness: 1/4 Inch
- Stud Size: 1/2 Inch
- EZ Fast Lube Spindles
- Forged Aluminum EZ Lube Grease Caps
- Pre-Wired Axle Tube
- Packed with High Temperature Grease
- Powder Coated Finish
- Fully Assembled and Ready to Install
- Spring Pads Welded or Loose Upon Request
- Custom Spring Pad Placement Available
Trailer Tire and Wheel Options
Choose from:
- ST225/75R15 Load Range E 10 Ply Radial Trailer Tires
- ST225/75R15 14 Ply All Steel Trailer Tires
- ST235/80R16 Load Range E 10 Ply Radial Trailer Tires
All tires arrive professionally mounted and ready for installation.
Double Eye Spring Specifications
- Capacity Per Spring: 3,500 lbs
- Spring Type: Double Eye
- Number of Leaves: 6
- Length Eye to Eye: 25.25 Inches
- Width: 1.75 Inches
- Eye Diameter: 9/16 Inch
- Arch Height: Approximately 3 to 3.25 Inches
Optional Single Axle Hanger Kit Includes
- (2) 3.25 Inch Front Hangers
- (2) 1.25 Inch Rear Hangers with Bushings
- (4) 3.125 Inch Shackle Links
- (6) Shackle Bolts
- (6) Lock Nuts
3 Inch U-Bolt Kit Includes
- (4) 1/2 Inch x 6.63 Inch U-Bolts
- (8) U-Bolt Nuts
- (2) Tie Plates
One U-Bolt Kit services one complete axle.

How to Measure Your Trailer Axle
Hub Face Measurement
Measure from the face of one hub where the wheel studs protrude to the face of the hub on the opposite side.
Spring Center Measurement
Measure from the center of one spring seat to the center of the spring seat on the opposite side.
Most 6K trailer axles have approximately a 15 inch difference between Hub Face and Spring Center dimensions.

Shipping Information
This item ships via common carrier freight.
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Bulk order discounts and manufacturer pricing are available. Contact us for volume pricing.
Pickup Location
Trailer Parts Unlimited
631 TX 75 N
Huntsville, TX 77320
Nationwide shipping available.