MPA Electrical NM4264 Brake Master Cylinder

Brake Master Cylinder for Equinox and Terrain

Restore hydraulic braking performance with this MPA Electrical brake master cylinder, part number NM4264. It is a standard replacement unit for 2010-2017 Chevrolet Equinox and 2010-2017 GMC Terrain models with front disc brakes.

Built as a new aluminum master cylinder and tested against OE specifications, NM4264 is intended for direct brake hydraulic service on the listed applications. It uses DOT 3 fluid and includes a gasket or seal, while the reservoir, cap, booster, push rod, sensor, and mounting hardware are not included.

Key Features

• Brand: MPA Electrical
• Part number: NM4264
• Standard replacement brake master cylinder
• Aluminum construction
• 1.003 in. bore diameter
• 2 mounting holes with 0.343 in. mounting hole diameter
• Gasket or seal included
• Uses DOT 3 brake fluid
• New condition

Product Details

MPA Electrical NM4264 is a brake master cylinder engineered for Chevrolet Equinox and GMC Terrain vehicles equipped with front disc brakes. The aluminum body and 1.003-inch bore support hydraulic pressure delivery for consistent pedal response, while OE-based testing helps confirm dimensional and functional accuracy before shipment. This part cross-references Monroe Shocks & Struts (e.g., 20890042, 20916576) for the same application.

Common Brake Issues Addressed

• Low or inconsistent brake pedal feel
• Internal master cylinder leakage
• Brake fluid loss at the hydraulic unit
• Uneven hydraulic pressure delivery
• Brake warning symptoms tied to master cylinder wear

Installation Notes

Verify vehicle configuration before installation: Fits 2010-2017 Chevrolet Equinox, front disc brakes. Fits 2010-2017 GMC Terrain, front disc brakes. Bench bleed the master cylinder before installation, use clean DOT 3 brake fluid, and inspect the brake booster, lines, and seals for wear or contamination. Because the reservoir, cap, push rod, and mounting hardware are not included, reuse or source those components as needed for the vehicle.

Quality Assurance

MPA Electrical tests each unit against OE specifications using controlled processes and an OE sample library to help ensure consistent braking performance out of the box. NM4264 is a new standard replacement brake master cylinder for the listed Chevrolet Equinox and GMC Terrain applications.