Dexter Disc Brake Kit K71-078-05, 3,750 lb Zinc Hub/Rotor with Aluminum Caliper, Complete Trailer Wheel End Kit

The Dexter K71-078-05 is a complete trailer wheel end disc brake kit rated for 3,750 lb capacity, built to give trailer owners a single, ready-to-install assembly rather than a collection of separate parts. The kit centers on a zinc-plated hub and rotor combination, paired with an aluminum caliper. Zinc plating on the hub and rotor is applied to help resist corrosion, which matters on trailer running gear that is regularly exposed to road spray, launch ramps, and standing water. The aluminum caliper reduces unsprung weight at the wheel end compared to a cast-iron equivalent, while still housing the components needed to clamp the rotor during braking.

Because this is sold as a complete wheel end kit, it is intended to give installers the hub, rotor, and caliper together as one part number, simplifying ordering and reducing the risk of mismatched components. This kit falls within Dexter's Trailer Disc Brakes lineup and is suited to trailer axle applications rated at or compatible with a 3,750 lb capacity per wheel end.

Specifications

• Brand: Dexter
• Manufacturer Part Number: K71-078-05
• Category: Trailer Disc Brakes
• Capacity: 3,750 lb
• Hub/Rotor Finish: Zinc-plated
• Caliper Material: Aluminum
• Kit Contents: Complete wheel end kit (hub, rotor, and caliper)
• Weight: 22.29 pounds
• UPC: 876983006694

Frequently Asked Questions

What is included in the Dexter K71-078-05 kit? The K71-078-05 is a complete trailer wheel end kit that includes the zinc-plated hub, zinc-plated rotor, and aluminum caliper as a single assembly, rather than requiring these parts to be purchased separately.

What load capacity is this disc brake kit rated for? This kit is rated for 3,750 lb capacity, making it suited to trailer axles built around that weight rating.

Is the caliper on this kit made of aluminum or cast iron? The caliper included in the Dexter K71-078-05 kit is aluminum, which reduces weight at the wheel end compared to a cast-iron caliper.

What finish is used on the hub and rotor? The hub and rotor in this Dexter kit are zinc-plated, a finish intended to help resist corrosion in wet trailering environments.

How much does the K71-078-05 kit weigh? The complete kit weighs 22.29 pounds.

Does this kit come pre-assembled or do I need to combine separate parts? The K71-078-05 is sold as a complete wheel end kit, meaning the hub, rotor, and caliper are provided together as one part number for that wheel position.

What brand manufactures this disc brake kit? This disc brake kit is manufactured by Dexter, part number K71-078-05.

What is the UPC for this Dexter brake kit? The UPC for the Dexter K71-078-05 Disc Brake Kit is 876983006694.

What category of trailer part is the K71-078-05? The K71-078-05 falls under Dexter's Trailer Disc Brakes category, covering the hub, rotor, and caliper assembly for a trailer wheel end.

Why choose an aluminum caliper over a standard cast caliper? The aluminum caliper used in the K71-078-05 kit lowers the weight of the wheel end assembly, an advantage in unsprung weight compared to a heavier cast caliper.