MPA Electrical NM55379 Brake Master Cylinder

Brake Master Cylinder for Saab 9-2X

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55379. It is a standard replacement unit for the 2005-2006 Saab 9-2X with front disc brakes, built with an aluminum master cylinder body, plastic reservoir, and included reservoir cap.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for vehicles that use this configuration. This NM55379 master cylinder is engineered to match OE specifications and is tested against original equipment standards for dependable braking performance after installation.

• Fits 2005-2006 Saab 9-2X, N/A, with front disc brakes
• Standard replacement brake master cylinder
• Aluminum master cylinder construction
• Plastic reservoir with reservoir included
• Master cylinder cap included
• 1-inch bore diameter
• Uses DOT 3 brake fluid
• Two mounting holes; mounting hardware not included

Detailed Product Overview

The NM55379 brake master cylinder is a hydraulic control component that converts pedal force into brake pressure for the Saab 9-2X braking system. It is built for vehicles equipped with front disc brakes and is intended to restore proper hydraulic response when the original master cylinder shows wear, internal leakage, or inconsistent pedal feel. The aluminum body and integrated reservoir support a clean OE-style replacement for 2005-2006 Saab 9-2X applications.

This part number, NM55379, is a direct-fit brake master cylinder choice for Saab 9-2X owners looking for a replacement that follows OE dimensions and fluid requirements. It is supplied with the reservoir and cap, and it uses DOT 3 brake fluid.

Common Problems This Part Can Address

• Low or sinking brake pedal
• Brake fluid bypass inside the master cylinder
• Uneven hydraulic pressure at the brake system
• External fluid seepage from the master cylinder body
• Loss of braking consistency after component wear

Installation Notes and Tips

Before installation, confirm the vehicle is a 2005-2006 Saab 9-2X with front disc brakes and verify the bore diameter, mounting hole layout, and fluid type. Bench bleeding the master cylinder before final installation helps remove trapped air and supports proper pedal feel. Because mounting hardware is not included, reuse or source the required fasteners as needed. After installation, bleed the brake system thoroughly and inspect all hydraulic connections for leaks.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using controlled inspection processes and proprietary validation methods. That approach helps ensure consistent hydraulic performance out of the box for the NM55379 application.