MPA Electrical M55221 Brake Master Cylinder

Brake Master Cylinder for Lexus SC300 and SC400

Restore consistent brake pedal feel with this remanufactured brake master cylinder from MPA Electrical. Built for 1994-2000 Lexus SC300 and Lexus SC400 models with front disc brakes, part number M55221 is a standard replacement for hydraulic brake system service.

The MPA Electrical reman with front disc brakes product line focuses on restoring OE-level braking function through tested remanufacturing and specification-based inspection. This brake master cylinder uses an aluminum body, includes a gasket or seal, and features a 1.0625-inch bore diameter for the listed Lexus applications.

Key Features

• Remanufactured brake master cylinder for brake hydraulic repair
• Fits 1994-2000 Lexus SC300 and 1994-2000 Lexus SC400 with front disc brakes
• Aluminum master cylinder construction
• 1.0625-inch bore diameter
• Standard replacement grade
• Gasket or seal included
• Two mounting holes with 0.347-inch mounting hole diameter
• Brake booster, reservoir, cap, push rod, sensor, and mounting hardware not included

Detailed Description

MPA Electrical M55221 is a remanufactured brake master cylinder engineered for direct hydraulic system restoration on Lexus SC300 and Lexus SC400 vehicles equipped with front disc brakes. It is built as a standard replacement unit and tested against OE specifications using controlled remanufacturing processes to help deliver consistent brake performance after installation. This part cross-references 4720124140 for the same application.

For buyers searching for a Lexus SC300 brake master cylinder, Lexus SC400 brake master cylinder, or M55221 brake master cylinder replacement, this unit provides the core hydraulic component needed to restore pressure transfer in the braking system. The aluminum housing and included seal support service replacement on the listed applications.

What It Helps Fix

• Low or inconsistent brake pedal response
• Internal hydraulic leakage in the master cylinder
• Brake fluid bypass that affects pedal firmness
• Loss of braking pressure at the master cylinder
• Brake system performance issues on Lexus SC300 and SC400 front disc brake setups

Installation Notes and Tips

Confirm the vehicle is a 1994-2000 Lexus SC300 or 1994-2000 Lexus SC400 with front disc brakes before installation. Transfer or source any required components not included with the master cylinder, including the reservoir, cap, push rod, brake booster interface parts, and mounting hardware. Bench bleeding the master cylinder before installation helps reduce trapped air in the hydraulic system and supports proper pedal feel after service.

Quality Assurance

MPA Electrical remanufactures brake master cylinders using OE sample references, testing protocols, and specification checks to verify function before release. Each unit is inspected to help ensure consistent braking performance out of the box for the listed Lexus SC300 and Lexus SC400 applications.