MPA Electrical NM52472 Brake Master Cylinder

Brake Master Cylinder for Metro, Firefly, Swift, Sprint

Restore consistent brake pedal feel with this MPA Electrical brake master cylinder, part number NM52472. It is a standard replacement unit built for vehicles with front disc brakes, including Chevrolet Metro, Pontiac Firefly, Geo Metro, Suzuki Swift, and Chevrolet Sprint applications.

Key Features

• Standard replacement brake master cylinder for hydraulic brake systems
• Aluminum master cylinder body with plastic reservoir
• 0.8125 bore diameter for the listed applications
• Reservoir, cap, and gasket or seal included
• Uses DOT 3 brake fluid
• Two mounting holes with 0.36 mounting hole diameter
• New condition, with no brake booster, push rod, sensor, or pressure switch included

Product Details

MPA Electrical NM52472 is engineered to restore braking performance by matching OE specifications through tested manufacturing processes and controlled inspection protocols. This brake master cylinder is built with an aluminum housing and plastic reservoir, and it is listed for front disc brake vehicles in the Metro, Firefly, Swift, and Sprint family. The design supports direct hydraulic brake system replacement where the original master cylinder has worn, leaked, or lost pedal consistency. This part cross-references 5110060B20 and 91171387 for the same application.

Vehicle Fitment

• Fits 1998-2001 Chevrolet Metro, New with front disc brakes
• Fits 1992 Chevrolet Metro, New with front disc brakes
• Fits 1994-1999 Pontiac Firefly, New with front disc brakes
• Fits 1989-1991 Pontiac Firefly, New with front disc brakes
• Fits 1989-1997 Geo Metro, New with front disc brakes
• Fits 1989-1994 Suzuki Swift, New with front disc brakes
• Fits 1989-1991 Chevrolet Sprint, New with front disc brakes

Common Repair Symptoms

• Low or sinking brake pedal
• Brake fluid leakage at the master cylinder
• Uneven or inconsistent hydraulic pressure
• Pedal travel that increases over time
• Brake warning concerns tied to master cylinder wear

Installation Notes

Bench bleed the master cylinder before installation, then bleed the full brake system after mounting. Verify DOT 3 fluid compatibility, inspect the brake lines and fittings for wear, and confirm the reservoir and seal are seated correctly before returning the vehicle to service. Mounting hardware, brake booster, push rod, sensor, and brake pressure switch are not included.

Quality Assurance

MPA Electrical uses OE sample references and specification-based testing to verify fit and function before release. NM52472 is a new standard replacement brake master cylinder built to deliver consistent hydraulic performance for the listed Chevrolet, Pontiac, Geo, and Suzuki applications.