MPA Electrical B1178 Power Brake Booster

Vacuum Brake Booster for Classic Ford and Mercury

MPA Electrical B1178 is a remanufactured vacuum power brake booster built for drivers restoring braking performance on classic applications. It is engineered for minimal pedal effort and consistent vacuum-assisted braking, with 100% end-of-line testing to verify function before it leaves the factory.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing for durable construction
• 189.74 mm / 7.47 in diaphragm diameter
• 2 mounting studs with 3/8-16 master cylinder stud thread size
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included

Product Details

The MPA Electrical B1178 reman vac pwr brake booster w/o master cyl is built for vacuum-assisted brake systems that need reliable pressure transfer and reduced pedal effort. This remanufactured unit uses specially treated replacement components to help maintain vacuum seal integrity and stable braking assist. It is a direct-fit style power brake booster for 1967-1970 Ford Mustang and 1967-1970 Mercury Cougar applications, making it a practical choice for restoration and service work. This part cross-references Ford D0ZZ2005A for the same application. The B1178 part number is also a useful reference when sourcing a reman vac pwr brake booster w/o master cyl for classic Ford and Mercury brake repair.

Common Issues This Part Addresses

• Hard brake pedal feel from a weak or failing booster
• Reduced vacuum assist during braking
• Inconsistent pedal response under normal driving
• Brake assist loss caused by internal seal wear
• Service replacement needs on classic Mustang and Cougar brake systems

Installation Notes and Tips

Verify master cylinder compatibility before installation, since the master cylinder is not included. Confirm the 2-stud mounting pattern, 3/8-16 master cylinder stud thread size, and booster dimensions against the original unit. Inspect the vacuum supply, pedal linkage, and mounting surfaces for wear or damage before installing the B1178. For best results, bleed the brake system after installation and check for proper pedal travel and vacuum assist.

Quality Assurance

MPA Electrical subjects each booster to 100% end-of-line testing using proprietary test equipment. The remanufacturing process includes new replacement and specially treated components to support vacuum sealing, pressure transfer, and overall brake assist performance.

Compatible Vehicles

• Fits 1967-1970 Ford Mustang, N/A
• Fits 1967-1970 Mercury Cougar, N/A