6000 lb Tandem Axle Kit (12K Capacity) 95/80 – Foundation Kit

SKU # 12TA9580545FK

Start your heavy-duty tandem axle trailer build with this 12,000 lb Foundation Kit. Built around two 6,000 lb electric brake axles with a 95″ hub face / 80″ spring center, this package includes the axles, double eye leaf springs, U-bolt mounting hardware, and tandem axle hanger kit needed to establish the core running gear and suspension system.

This Foundation Kit is ideal for builders who already have their tires, wheels, fenders, coupler, jack, brake wiring, lighting, and other trailer components—or who want the flexibility to select those items separately for a custom heavy-duty build.

What’s Included

Axles & Suspension

• (2) 6,000 lb Electric Brake Axles – 95″ Hub Face / 80″ Spring Center
• Double Eye Leaf Springs
• U-Bolt Mounting Hardware
• (1) Tandem Axle Hanger Kit

Kit Specifications

Features & Benefits

Heavy-Duty Tandem Axle Foundation

This kit provides the core axle and suspension components needed to establish the running gear foundation for a heavy-duty tandem axle trailer.

12,000 lb Combined Axle Capacity

Two 6,000 lb axles provide a combined axle capacity of 12,000 lbs, making this package a strong starting point for equipment trailers, construction trailers, farm trailers, and other demanding applications.

Electric Brakes on Both Axles

Both axles are equipped with electric brakes, providing increased stopping control when connected to a properly equipped tow vehicle and trailer brake controller.

95/80 Axle Configuration

Both axles feature a 95-inch hub face and 80-inch spring center, making the critical fitment measurements easy to verify before installation.

Complete Tandem Suspension Components

Double eye leaf springs, U-bolt mounting hardware, and the tandem axle hanger kit are included to support and mount both axles as a coordinated suspension system.

Flexible Build Option

A Foundation Kit allows you to select your own tires, wheels, fenders, coupler, jack, brake wiring, lighting, breakaway equipment, and other trailer components based on your specific project.

Ideal for New Builds or Repairs

Use this package as the starting point for a new heavy-duty tandem axle trailer or as a convenient replacement solution when rebuilding worn or damaged running gear.

Common Applications

• Equipment Trailers
• Heavy-Duty Utility Trailers
• Construction Trailers
• Farm & Agricultural Trailers
• Machinery Trailers
• Skid Steer Trailers
• Compact Tractor Trailers
• Landscape Equipment Trailers
• Custom Tandem Axle Builds
• Trailer Repairs & Rebuilds

Foundation Kit vs. Rolling Kit

The Foundation Kit includes the axles, springs, U-bolt hardware, and tandem hanger system needed to establish the trailer’s running gear.

If you also need tires, wheels, fenders, coupler, jack, and safety chains, a Rolling Kit may be the better option. For a more complete build package with blueprints, lighting, wiring, breakaway equipment, cargo hardware, and fabrication components, consider a Master Kit.

Important Fitment Information

Please verify all trailer measurements and component requirements before ordering.

• Hub Face: 95″
• Spring Center: 80″
• Individual Axle Capacity: 6,000 lbs
• Combined Axle Capacity: 12,000 lbs
• Axle Setup: 2 Electric Brake Axles

The 12,000 lb combined axle rating does not automatically mean the completed trailer is rated for 12,000 lbs of payload. Final trailer capacity and legal GVWR depend on the completed trailer design and the lowest-rated component in the assembly, including the frame, suspension, tires, wheels, coupler, brakes, and other hardware.

Need help confirming axle dimensions or choosing the correct kit level? Contact Highway 96 Trailers and our team can help you select the right setup for your trailer project.