MPA Electrical NM55030 Brake Master Cylinder

Brake Master Cylinder for Corolla and Prizm

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55030. It is a standard replacement unit for 1993-1997 Geo Prizm and 1993-1997 Toyota Corolla models with front disc brakes.

Built with an aluminum master cylinder body, plastic reservoir, included reservoir cap, and DOT 3 fluid compatibility, this replacement is engineered to match OE specifications for dependable hydraulic performance. The 0.875-inch bore diameter and 3 mounting holes support direct replacement service on the listed applications.

Key Features

• MPA Electrical NM55030 brake master cylinder
• Fits 1993-1997 Geo Prizm, front disc brakes
• Fits 1993-1997 Toyota Corolla, front disc brakes
• Aluminum master cylinder construction with plastic reservoir
• Standard replacement grade for brake hydraulic service
• Includes reservoir, cap, and gasket or seal
• 0.875-inch bore diameter
• DOT 3 brake fluid type
• 3 mounting holes with 0.355-inch mounting hole diameter

Product Details

MPA Electrical uses OE sample data and testing protocols to verify each brake master cylinder against original specifications before release. That process helps ensure the hydraulic dimensions, reservoir configuration, and mounting layout align with the listed Toyota Corolla and Geo Prizm applications. Part number NM55030 is a direct-fit brake hydraulic replacement for vehicles equipped with front disc brakes.

This part cross-references Toyota 94856168 and 4720112760 for the same application.

Common Brake Issues It Can Address

• Low or inconsistent brake pedal feel
• Internal hydraulic leakage in the master cylinder
• Brake fluid loss at the reservoir or seals
• Delayed brake response from worn hydraulic components
• Restoration of braking performance after master cylinder wear

Installation Notes

Verify the vehicle is equipped with front disc brakes before ordering. Confirm bore size, mounting hole count, and reservoir style against the original unit on the vehicle. This master cylinder does not include a brake booster, push rod, mounting hardware, sensor, brake pressure switch, or mounting bracket.

Bleed the brake system thoroughly after installation and use DOT 3 brake fluid as specified. Inspect all hydraulic connections and seals for leaks before returning the vehicle to service.

Quality Assurance

MPA Electrical tests each master cylinder against OE specifications using controlled inspection and validation procedures. The NM55030 is a new standard replacement part built to restore braking performance on the listed Corolla and Prizm applications.