MPA Electrical M55251 Brake Master Cylinder

Brake Master Cylinder for Toyota Tundra and Tacoma

Restore consistent brake pedal response with this remanufactured brake master cylinder from MPA Electrical. Built for Toyota Tundra and Toyota Tacoma applications with front disc brakes, part number M55251 is a standard replacement for vehicles that need dependable hydraulic pressure and OE-style fitment.

The MPA Electrical reman with front disc brakes product line focuses on restoring braking performance through tested remanufactured components. Each unit is evaluated against OE specifications using controlled testing processes to help deliver consistent operation right out of the box.

Key Features

• Remanufactured brake master cylinder for brake hydraulic service
• Aluminum master cylinder construction
• 0.8125 in bore diameter for proper hydraulic output
• Standard replacement grade
• Uses DOT 3 brake fluid
• Two mounting holes with 0.355 in mounting hole diameter
• Direct replacement for front disc brake applications
• Cross-reference part numbers include 47201-0C011 and 47201-0C012

Detailed Description

MPA Electrical M55251 is a remanufactured brake master cylinder engineered for 2000-2006 Toyota Tundra and 2001 Toyota Tacoma models with front disc brakes. It is built with an aluminum body and a 0.8125-inch bore diameter to support proper brake hydraulic pressure and pedal feel. This part number, M55251, is a practical OE-style replacement when the original master cylinder shows wear, internal leakage, or inconsistent braking response.

Because this unit is supplied without a reservoir, cap, booster, push rod, sensor, gasket, seal, or mounting hardware, it is intended for service technicians and experienced DIY installers who are transferring reusable components as needed. M55251 also cross-references Toyota OE numbers 47201-0C011 and 47201-0C012 for the same application.

What It Helps Fix

• Low or spongy brake pedal feel
• Internal master cylinder fluid bypass
• Brake pedal that slowly sinks under pressure
• Uneven hydraulic response in the brake system
• Loss of braking performance caused by worn master cylinder seals

Installation Notes and Tips

Before installation, verify the vehicle is a 2000-2006 Toyota Tundra or 2001 Toyota Tacoma with front disc brakes. Bench bleed the master cylinder before connecting brake lines, and use fresh DOT 3 brake fluid during system service. Inspect the brake booster, lines, and fittings for wear or contamination before final assembly.

Quality Assurance

MPA Electrical remanufactured brake master cylinders are tested against OE specifications using proprietary processes and strict inspection protocols to help ensure consistent braking performance after installation.