UFP By Dexter Master Cylinder Replacement Kit K71-757-00 for Disc Brake Actuators, All Models

This is the UFP By Dexter Master Cylinder Replacement Kit, part number K71-757-00, built to restore hydraulic braking function in disc brake actuators. The kit centers on an aluminum master cylinder designed for UFP disc actuator assemblies, giving trailer owners a direct way to replace a worn, leaking, or failed master cylinder without sourcing a full new actuator. Each kit is packaged as a single replacement unit (package quantity of 1), making it a straightforward drop-in service part for maintenance or repair work on disc brake actuator systems.

The master cylinder is the core component that converts mechanical force from the actuator into hydraulic pressure sent to the trailer's disc brake calipers, so a compromised unit can lead to soft, spongy, or unresponsive brakes. Replacing it with this kit restores proper hydraulic pressure and pedal/actuator feel. The aluminum construction is used specifically for UFP actuator applications, and the kit is designated for use across all UFP disc brake actuator models, simplifying parts ordering for anyone servicing UFP-equipped trailers.

Specifications

• Brand: UFP By Dexter
• Manufacturer Part Number: K71-757-00
• Model Number: K71-757
• Material: Aluminum
• Weight: 2.4 pounds
• Product Dimensions: 8.25 x 3.5 x 3 inches
• Package Quantity: 1
• Application: Disc brake actuators, all models
• UPC: 876983005604

Fitment

• UFP disc brake actuators, all models

Frequently Asked Questions

What does the K71-757-00 master cylinder kit fit? The K71-757-00 kit is designated for all UFP disc brake actuator models, making it a broad-fit replacement master cylinder for UFP-equipped trailer actuators.

What is included in this kit? The kit includes one aluminum master cylinder built for UFP actuators, packaged as a single replacement unit (package quantity of 1) under part number K71-757-00.

Is the master cylinder in K71-757-00 made of aluminum? Yes, the master cylinder in the K71-757-00 kit is aluminum, matching the material used in the original UFP actuator master cylinders it replaces.

What are the dimensions of the K71-757-00 kit? The K71-757-00 Master Cylinder Replacement Kit measures 8.25 x 3.5 x 3 inches.

How much does the K71-757-00 master cylinder kit weigh? This kit weighs 2.4 pounds.

Is this a genuine UFP By Dexter part? Yes, K71-757-00 is a genuine UFP By Dexter part, not a generic aftermarket substitute.

Will this replace my original UFP master cylinder? K71-757-00 is designed as a direct replacement master cylinder for UFP disc brake actuators across all models.

What signs indicate I need to replace my master cylinder with this kit? Soft, spongy, or unresponsive trailer brakes can indicate a failing master cylinder, and the K71-757-00 kit provides the replacement aluminum master cylinder needed to restore hydraulic pressure in UFP disc brake actuators.

Does K71-757-00 fit disc brakes only or also drum brakes? K71-757-00 is a master cylinder kit for disc brake actuators; it is not designated for drum brake actuators.

How many master cylinders come in the K71-757-00 kit? The K71-757-00 kit contains one master cylinder (package quantity of 1).