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MPA Electrical NM55631 Brake Master Cylinder
| Brand | MPA Electrical NM55631 |
|---|---|
| Reservoir Material | Plastic |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | No |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 0.937 |
| Brake Booster Included | No |
| Master Cylinder Cap Included | Yes |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | Yes |
| Sensor Included | No |
| Mounting Hole Diameter | 0.338 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Product Condition | New |
| Product line | New with front disc brakes |
| Fits | Subaru · 27 vehicles |
Standard replacement. Built for direct hydraulic service with OE-spec testing and consistent brake response.
Aluminum body. Lightweight construction with a plastic reservoir and included cap.
New unit tested against OE specifications for consistent braking performance.
Cross-references 26401-FJ070 and 26401-FJ071 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Brake Master Cylinder for Subaru Applications
The MPA Electrical NM55631 brake master cylinder is a standard replacement unit built to restore braking performance with consistent hydraulic response. It is engineered for Subaru applications with front disc brakes and uses an aluminum body with a plastic reservoir for a direct service replacement.
- Standard replacement brake master cylinder for hydraulic brake service
- Aluminum master cylinder body with integrated plastic reservoir
- 0.937 bore diameter for the specified brake system application
- New unit with cap included
- Fits Subaru Crosstrek, Forester, Legacy, Outback, Impreza, and XV Crosstrek applications with front disc brakes
Detailed Product Overview
MPA Electrical NM55631 is a brake master cylinder designed for Subaru vehicles that use front disc brakes. The unit is tested against OE specifications using the brand's sample library and proprietary inspection processes, which helps ensure the hydraulic output and pedal feel match the intended application. This part number, NM55631, cross-references Subaru 26401-FJ070 and 26401-FJ071 for the same application.
Fitment includes 2016-2023 Subaru Crosstrek, 2014-2018 Subaru Forester, 2015-2017 Subaru Legacy, 2015-2017 Subaru Outback, 2012-2016 Subaru Impreza, and 2013-2015 Subaru XV Crosstrek, all noted for new with front disc brakes. If you are replacing a worn or leaking master cylinder on a Subaru Crosstrek, Forester, or Impreza, this NM55631 unit provides the specified hydraulic foundation for the brake system.
Common Issues This Part Can Address
- Low or inconsistent brake pedal response
- Internal hydraulic leakage in the master cylinder
- Brake fluid loss at the master cylinder assembly
- Reduced braking performance from a worn hydraulic unit
- Brake system service needs on front disc brake applications
Installation Notes
Verify bore diameter, mounting hole count, and reservoir configuration before installation. This brake master cylinder does not include mounting hardware, a brake booster, push rod, gasket or seal, or brake pressure switch. Bleed the brake system after installation and confirm proper pedal feel before returning the vehicle to service.
Quality Assurance
MPA Electrical tests each unit against OE specifications using proprietary processes and strict protocols. The NM55631 is a new standard replacement brake master cylinder built to deliver consistent braking performance out of the box.
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|---|
| 2023 | Subaru | Crosstrek | — | 2.5L | H4 | — | New with front disc brakes |
| 2022 | Subaru | Crosstrek | — | 2.5L | H4 | — | New with front disc brakes |
| 2021 | Subaru | Crosstrek | — | 2.5L | H4 | — | New with front disc brakes |
| 2020 | Subaru | Crosstrek | Automatic CVT | — | — | GAS | New with front disc brakes |
| 2019 | Subaru | Crosstrek | Automatic CVT | — | — | GAS | New with front disc brakes |
| 2018 | Subaru | Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2018 | Subaru | Forester | Automatic CVT | — | — | — | New with front disc brakes |
| 2017 | Subaru | Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2017 | Subaru | Forester | Automatic CVT | — | — | — | New with front disc brakes |
| 2017 | Subaru | Legacy | Automatic CVT | 2.5L | H4 | — | New with front disc brakes |
| 2017 | Subaru | Outback | — | 2.5L | H4 | — | New with front disc brakes |
| 2016 | Subaru | Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2016 | Subaru | Forester | Automatic CVT | — | — | — | New with front disc brakes |
| 2016 | Subaru | Impreza | Automatic CVT | — | — | — | New with front disc brakes |
| 2016 | Subaru | Legacy | — | 2.5L | H4 | — | New with front disc brakes |
| 2016 | Subaru | Outback | — | 2.5L | H4 | — | New with front disc brakes |
| 2015 | Subaru | Forester | Automatic CVT | 2.5L | H4 | — | New with front disc brakes |
| 2015 | Subaru | Impreza | Automatic CVT | 2.0L | H4 | — | New with front disc brakes |
| 2015 | Subaru | Legacy | — | — | — | — | New with front disc brakes |
| 2015 | Subaru | Outback | — | — | — | — | New with front disc brakes |
| 2015 | Subaru | XV Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2014 | Subaru | Forester | Automatic CVT | 2.5L | H4 | — | New with front disc brakes |
| 2014 | Subaru | Impreza | Automatic CVT | 2.0L | H4 | — | New with front disc brakes |
| 2014 | Subaru | XV Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2013 | Subaru | Impreza | Automatic CVT | 2.0L | H4 | — | New with front disc brakes |
| 2013 | Subaru | XV Crosstrek | Automatic CVT | — | — | — | New with front disc brakes |
| 2012 | Subaru | Impreza | Automatic CVT | 2.0L | H4 | — | New with front disc brakes |
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