MPA Electrical NM2557 Brake Master Cylinder
Brake Master Cylinder for Buick, Chevrolet, and Oldsmobile
Restore hydraulic braking performance with this new brake master cylinder from MPA Electrical. Built as a standard replacement for front disc brake applications, NM2557 is engineered for consistent pedal response on 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser models.
MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for vehicles that need OE-style function and dependable everyday braking. Part number NM2557 is a new aluminum master cylinder with a plastic reservoir and included cap, made for DOT 3 brake fluid service.
Key Features
- Part number NM2557 brake master cylinder
- Fits 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser with front disc brakes
- Standard replacement grade for brake hydraulic service
- Aluminum master cylinder body with plastic reservoir
- 1.575 in. bore diameter for hydraulic output
- Reservoir and master cylinder cap included
- Two mounting holes with 0.420 in. mounting hole diameter
- Uses DOT 3 brake fluid
- No brake booster, push rod, sensor, gasket, seal, or mounting bracket included
Detailed Description
This brake master cylinder is built to restore braking performance by replacing a worn or leaking hydraulic unit. MPA Electrical tests each unit against OE specifications using controlled processes and an OE sample library, helping ensure consistent brake feel and proper hydraulic operation right out of the box. If you are servicing a 1991-1992 Buick Roadmaster, Chevrolet Caprice, or Oldsmobile Custom Cruiser with front disc brakes, NM2557 provides a direct replacement solution for the master cylinder assembly.
This part cross-references Monroe Shocks & Struts (e.g., 18015379, 18060110) for the same application.
What It Helps Fix
- Low or sinking brake pedal caused by internal master cylinder wear
- Brake fluid leakage from a failing hydraulic housing or reservoir area
- Uneven or inconsistent brake pressure during normal stopping
- Delayed pedal response after master cylinder deterioration
- Brake performance loss on front disc brake-equipped full-size GM vehicles
Installation Notes and Tips
Verify bore diameter, mounting hole spacing, and reservoir configuration before installation. Bench bleeding is recommended before the unit is installed on the vehicle to reduce trapped air in the hydraulic system. Use only clean DOT 3 brake fluid and inspect brake lines, fittings, and the booster interface for wear or contamination during service. NM2557 does not include mounting hardware, so reuse or source the required fasteners as needed.
Quality Assurance
MPA Electrical manufactures this master cylinder as a new standard replacement part and validates it against OE specifications for braking performance and fit. Part number NM2557 is built for dependable hydraulic operation on the listed Buick, Chevrolet, and Oldsmobile applications.
Original: $69.47
-65%$69.47
$24.31MPA Electrical NM2557 Brake Master Cylinder
Brake Master Cylinder for Buick, Chevrolet, and Oldsmobile
Restore hydraulic braking performance with this new brake master cylinder from MPA Electrical. Built as a standard replacement for front disc brake applications, NM2557 is engineered for consistent pedal response on 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser models.
MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for vehicles that need OE-style function and dependable everyday braking. Part number NM2557 is a new aluminum master cylinder with a plastic reservoir and included cap, made for DOT 3 brake fluid service.
Key Features
- Part number NM2557 brake master cylinder
- Fits 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser with front disc brakes
- Standard replacement grade for brake hydraulic service
- Aluminum master cylinder body with plastic reservoir
- 1.575 in. bore diameter for hydraulic output
- Reservoir and master cylinder cap included
- Two mounting holes with 0.420 in. mounting hole diameter
- Uses DOT 3 brake fluid
- No brake booster, push rod, sensor, gasket, seal, or mounting bracket included
Detailed Description
This brake master cylinder is built to restore braking performance by replacing a worn or leaking hydraulic unit. MPA Electrical tests each unit against OE specifications using controlled processes and an OE sample library, helping ensure consistent brake feel and proper hydraulic operation right out of the box. If you are servicing a 1991-1992 Buick Roadmaster, Chevrolet Caprice, or Oldsmobile Custom Cruiser with front disc brakes, NM2557 provides a direct replacement solution for the master cylinder assembly.
This part cross-references Monroe Shocks & Struts (e.g., 18015379, 18060110) for the same application.
What It Helps Fix
- Low or sinking brake pedal caused by internal master cylinder wear
- Brake fluid leakage from a failing hydraulic housing or reservoir area
- Uneven or inconsistent brake pressure during normal stopping
- Delayed pedal response after master cylinder deterioration
- Brake performance loss on front disc brake-equipped full-size GM vehicles
Installation Notes and Tips
Verify bore diameter, mounting hole spacing, and reservoir configuration before installation. Bench bleeding is recommended before the unit is installed on the vehicle to reduce trapped air in the hydraulic system. Use only clean DOT 3 brake fluid and inspect brake lines, fittings, and the booster interface for wear or contamination during service. NM2557 does not include mounting hardware, so reuse or source the required fasteners as needed.
Quality Assurance
MPA Electrical manufactures this master cylinder as a new standard replacement part and validates it against OE specifications for braking performance and fit. Part number NM2557 is built for dependable hydraulic operation on the listed Buick, Chevrolet, and Oldsmobile applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Brake Master Cylinder for Buick, Chevrolet, and Oldsmobile
Restore hydraulic braking performance with this new brake master cylinder from MPA Electrical. Built as a standard replacement for front disc brake applications, NM2557 is engineered for consistent pedal response on 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser models.
MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for vehicles that need OE-style function and dependable everyday braking. Part number NM2557 is a new aluminum master cylinder with a plastic reservoir and included cap, made for DOT 3 brake fluid service.
Key Features
- Part number NM2557 brake master cylinder
- Fits 1991-1992 Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser with front disc brakes
- Standard replacement grade for brake hydraulic service
- Aluminum master cylinder body with plastic reservoir
- 1.575 in. bore diameter for hydraulic output
- Reservoir and master cylinder cap included
- Two mounting holes with 0.420 in. mounting hole diameter
- Uses DOT 3 brake fluid
- No brake booster, push rod, sensor, gasket, seal, or mounting bracket included
Detailed Description
This brake master cylinder is built to restore braking performance by replacing a worn or leaking hydraulic unit. MPA Electrical tests each unit against OE specifications using controlled processes and an OE sample library, helping ensure consistent brake feel and proper hydraulic operation right out of the box. If you are servicing a 1991-1992 Buick Roadmaster, Chevrolet Caprice, or Oldsmobile Custom Cruiser with front disc brakes, NM2557 provides a direct replacement solution for the master cylinder assembly.
This part cross-references Monroe Shocks & Struts (e.g., 18015379, 18060110) for the same application.
What It Helps Fix
- Low or sinking brake pedal caused by internal master cylinder wear
- Brake fluid leakage from a failing hydraulic housing or reservoir area
- Uneven or inconsistent brake pressure during normal stopping
- Delayed pedal response after master cylinder deterioration
- Brake performance loss on front disc brake-equipped full-size GM vehicles
Installation Notes and Tips
Verify bore diameter, mounting hole spacing, and reservoir configuration before installation. Bench bleeding is recommended before the unit is installed on the vehicle to reduce trapped air in the hydraulic system. Use only clean DOT 3 brake fluid and inspect brake lines, fittings, and the booster interface for wear or contamination during service. NM2557 does not include mounting hardware, so reuse or source the required fasteners as needed.
Quality Assurance
MPA Electrical manufactures this master cylinder as a new standard replacement part and validates it against OE specifications for braking performance and fit. Part number NM2557 is built for dependable hydraulic operation on the listed Buick, Chevrolet, and Oldsmobile applications.
