MPA Electrical M1292 Brake Master Cylinder

Brake Master Cylinder for Jeep Drum Brake Applications

Restore hydraulic braking performance with this remanufactured brake master cylinder from MPA Electrical. Built for Jeep CJ5, CJ7, and Wagoneer applications with front drum brakes, this standard replacement uses a 1-inch bore, cast iron construction, and an integral reservoir for dependable brake fluid control.

MPA Electrical remanufactures brake master cylinders using OE sample data and testing protocols that verify performance against original specifications. Part number M1292 is a direct-fit hydraulic replacement for select Jeep models from 1966-1976.

Key Features

• Fits 1970-1976 Jeep CJ5, N/A, reman with front drum brakes
• Fits 1976 Jeep CJ7, N/A, reman with front drum brakes
• Fits 1966-1973 Jeep Wagoneer, N/A, reman with front drum brakes
• Remanufactured standard replacement brake master cylinder
• 1-inch master cylinder bore diameter
• Cast iron master cylinder body with integral reservoir
• Includes master cylinder cap
• Uses DOT 3 brake fluid
• Mounting hole quantity: 2

Detailed Description

The MPA Electrical M1292 brake master cylinder is engineered for Jeep CJ5, CJ7, and Wagoneer vehicles equipped with front drum brakes. Its cast iron housing and 1-inch bore support consistent hydraulic pressure for classic Jeep braking systems, while the integral reservoir helps maintain fluid supply in a compact OE-style layout. This part number M1292 is a remanufactured brake hydraulics solution for drivers replacing a worn or leaking master cylinder on vintage Jeep applications.

Brand line details matter here: this reman with front drum brakes configuration is matched to the specific brake setup listed in the fitment data, helping ensure the correct hydraulic design for the vehicle’s original drum brake system. If you are sourcing a Jeep CJ5 brake master cylinder, Jeep CJ7 brake master cylinder, or Jeep Wagoneer brake master cylinder, M1292 is the cataloged application to review.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Solve

• Low or inconsistent brake pedal response
• External brake fluid leakage from a worn master cylinder
• Internal hydraulic bypass that reduces braking pressure
• Soft pedal feel caused by master cylinder wear
• Brake system performance loss in front drum brake setups

Installation Notes and Tips

Verify the vehicle is equipped with front drum brakes before ordering. This master cylinder does not include mounting hardware, a brake booster, push rod, or gasket/seal. It includes the reservoir and cap, and it uses DOT 3 brake fluid. Bench bleeding is recommended before installation, followed by a full brake system bleed to remove trapped air and restore pedal feel.

Quality Assurance

MPA Electrical tests each remanufactured unit against OE specifications using proprietary processes and strict protocols to help ensure consistent braking performance out of the box. Part number M1292 is built as a standard replacement for the listed Jeep applications.