MPA Electrical M1873 Brake Master Cylinder

Brake Master Cylinder for Front Disc Brake Applications

Restore consistent brake pedal feel with this remanufactured brake master cylinder from MPA Electrical. Built for vehicles with front disc brakes, M1873 is a standard replacement for select Jeep, Chevrolet, and GMC trucks and SUVs from the 1981-1993 model years.

MPA Electrical remanufactures brake master cylinders using OE sample references and testing protocols that verify performance against original specifications. This M1873 unit is designed for direct hydraulic replacement on supported applications, including Chevrolet C10, K5 Blazer, GMC Jimmy, and Jeep Wagoneer platforms.

• Remanufactured brake master cylinder for front disc brake setups
• Aluminum housing with a 1.575-inch bore diameter
• Standard replacement grade for hydraulic brake service
• Uses DOT 3 brake fluid
• Two mounting holes with 0.410-inch mounting hole diameter
• Cross-reference part numbers include 18013435 and 83502723

Product Line Details

The MPA Electrical reman with front disc brakes line focuses on hydraulic brake components restored to OE-style operating standards. Each unit is tested to confirm braking performance before it leaves the remanufacturing process, helping support reliable pedal response on older GM and Jeep platforms that use front disc brake systems.

Detailed Description

Brake master cylinder M1873 is a remanufactured aluminum unit engineered for vehicles that require a 1.575-inch bore and front disc brake configuration. It is listed for applications such as 1981-1986 Chevrolet C10, K10, K20, and K5 Blazer; 1981-1986 GMC C1500, K1500, and K2500; 1981-1988 Jeep J10 and J20; and 1984-1991 Jeep Grand Wagoneer. It also covers select Chevrolet and GMC R/V-series Suburban and pickup models from the late 1980s and early 1990s. M1873 is a direct-fit hydraulic service part for restoring brake pressure in supported vehicles.

Common Problems This Part Can Address

• Low or sinking brake pedal caused by internal master cylinder wear
• Uneven hydraulic pressure in front disc brake systems
• Brake fluid bypass inside the master cylinder bore
• Reduced braking response on aging GM and Jeep brake systems
• Hydraulic leakage from a worn original master cylinder

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and brake configuration before installation. This unit does not include mounting hardware, seals, a reservoir, a cap, a brake booster, a push rod, or a brake pressure switch. Bench bleed the master cylinder before installation, use clean DOT 3 brake fluid, and inspect the brake lines and booster condition during service. Confirm the mounting hole spacing and bore requirements match the original part.

Quality Assurance

MPA Electrical tests each remanufactured master cylinder against OE specifications using proprietary procedures and strict inspection protocols. That process is intended to deliver consistent hydraulic performance out of the box for supported applications. Part number M1873 is also referenced by 18013435 and 83502723.