MPA Electrical B3133 Power Brake Booster

Vacuum Brake Booster for Toyota Corolla

Restore brake assist on your 1984-1987 Toyota Corolla with this remanufactured vacuum power brake booster from MPA Electrical. Part number B3133 is a standard replacement unit built for consistent vacuum sealing, smooth pressure transfer, and reduced pedal effort.

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on remanufactured brake boosters that are tested for fit and function before release. This B3133 unit is supplied without the master cylinder, making it a direct replacement for the booster assembly only.

Key Features

• Fits 1984-1987 Toyota Corolla, N/A
• Vacuum booster design for power-assisted braking
• Remanufactured standard replacement part
• Metal housing construction
• 217.68 mm / 8.57 in diaphragm diameter
• 8 x 1.25 mm master cylinder stud thread size
• 2 mounting studs
• Master cylinder not included
• Brake pedal rod extension not included

Detailed Description

MPA Electrical B3133 is a remanufactured vacuum power brake booster engineered for 1984-1987 Toyota Corolla applications. It is designed to deliver braking assist with lower pedal effort by maintaining a strong vacuum seal and reliable pressure transfer through the booster assembly. The metal housing and treated replacement components support consistent operation in a direct-fit brake service application.

This part cross-references Toyota OE numbers 4461012430 and 4461012440 for the same application. Use B3133 when replacing a worn or leaking booster on a Toyota Corolla from the listed model years, especially when the original unit shows reduced assist or vacuum retention issues.

Common Brake Issues It Can Address

• Hard brake pedal feel
• Reduced power assist during braking
• Vacuum leak at the booster assembly
• Inconsistent pedal response
• Brake assist loss on Toyota Corolla models from 1984-1987

Installation Notes and Tips

Verify the master cylinder is transferred or replaced separately, since it is not included with this booster. Confirm the 8 x 1.25 mm stud thread size and the 2-stud mounting layout before installation. Inspect the vacuum hose, check valve, and pedal linkage condition during service to help ensure proper brake system operation after replacement.

Quality Assurance

Each MPA Electrical brake booster is subjected to 100% end-of-line testing using proprietary test equipment to confirm function before release. The remanufactured design uses new replacement and specially treated components to support vacuum sealing and pressure transfer performance.