MPA Electrical NM55450 Brake Master Cylinder

Brake Master Cylinder for Mitsubishi Lancer

Restore consistent brake pedal response with this MPA Electrical brake master cylinder for the 2008-2009 Mitsubishi Lancer with front disc brakes. Part number NM55450 is a standard replacement unit built with an aluminum body and a 0.813-inch bore for direct hydraulic performance restoration.

MPA Electrical’s New with front disc brakes product line focuses on OE-style brake hydraulics for vehicles that need a dependable replacement master cylinder. This NM55450 application is built and tested against OE specifications to help deliver proper braking performance after installation.

• Fits 2008-2009 Mitsubishi Lancer, N/A
• Standard replacement brake master cylinder
• Aluminum construction
• 0.813-inch master cylinder bore diameter
• Gasket or seal included
• 2 mounting holes with 0.356-inch mounting hole diameter
• New product condition
• Interchanges with 4625A237 and 4625A475

Detailed Product Information

MPA Electrical NM55450 is a brake master cylinder for Mitsubishi Lancer models equipped with front disc brakes. It is engineered to restore hydraulic pressure transfer from the brake pedal to the braking system, helping return the vehicle to proper stopping response. The aluminum master cylinder body supports a durable, OE-style replacement design, while the 0.813-inch bore diameter matches the specified application requirements. This part number, NM55450, is listed for 2008-2009 Mitsubishi Lancer applications and cross-references 4625A237 and 4625A475 for the same use.

Common Problems This Part Can Address

• Low or inconsistent brake pedal feel
• Internal master cylinder leakage
• Brake fluid bypass causing reduced hydraulic pressure
• Delayed or uneven brake response
• Brake warning symptoms related to master cylinder wear

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and brake configuration before installation. This master cylinder does not include a reservoir, cap, brake booster, push rod, mounting hardware, or mounting bracket. A gasket or seal is included, and the unit uses two mounting holes. Bleed the brake system thoroughly after installation to remove air and restore firm pedal feel.

Quality Assurance

MPA Electrical states that its brake master cylinders are tested using proprietary processes and strict protocols against OE specifications, using an OE sample library as the reference standard. That process is used to help ensure consistent braking performance out of the box.