MPA Electrical NM52523 Brake Master Cylinder

Brake Master Cylinder for Prizm and Corolla

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM52523. It is a standard replacement master cylinder built with an aluminum body, plastic reservoir, and DOT 3 fluid compatibility for select Chevrolet Prizm, Geo Prizm, and Toyota Corolla applications with front disc brakes.

The MPA Electrical New with front disc brakes product line focuses on direct-fit brake hydraulics for vehicles that need OE-style replacement parts. This NM52523 master cylinder is tested against OE specifications using sample-based validation and controlled inspection processes to help deliver reliable braking performance after installation.

• Brake master cylinder for brake hydraulic service
• Aluminum master cylinder body with plastic reservoir
• 0.8125 bore diameter for specified applications
• Includes reservoir, cap, and gasket/seal
• Standard replacement grade for select front disc brake vehicles
• Uses DOT 3 brake fluid
• Three mounting holes with 0.355 mounting hole diameter

Detailed Product Information

MPA Electrical NM52523 is a new brake master cylinder engineered for vehicles listed with front disc brakes. It is built from aluminum and includes a plastic reservoir, reservoir cap, and gasket or seal. The 0.8125-inch bore diameter and three-hole mounting pattern support the specified brake hydraulic setup for 1990-1992 Toyota Corolla, 1991-1997 Geo Prizm, and 1998-2002 Chevrolet Prizm applications. This part cross-references 4720101030 and 94851270 for the same application.

Common Brake Issues It May Address

• Low or inconsistent brake pedal feel
• Internal master cylinder fluid bypass
• Brake fluid leakage at the master cylinder
• Reduced hydraulic pressure to the brake system
• Brake warning symptoms tied to master cylinder wear

Installation Notes and Fitment

Compatible With 1998-2002 Chevrolet Prizm, front disc brakes; 1991-1997 Geo Prizm, front disc brakes; and 1990-1992 Toyota Corolla, front disc brakes. Verify bore size, mounting hole layout, and brake line connections before installation. Bench bleeding the master cylinder before final installation helps reduce trapped air in the hydraulic system. Mounting hardware, brake booster, push rod, sensor, and brake pressure switch are not included.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict inspection protocols to support consistent braking performance out of the box. Part number NM52523 is a new standard replacement brake master cylinder for select Prizm and Corolla applications.