MPA Electrical B1004 Power Brake Booster

Remanufactured Vacuum Brake Booster for Ford Trucks

The MPA Electrical B1004 is a remanufactured vacuum power brake booster built for Ford F-250 and F-350 applications that need consistent brake assist and a firm pedal feel. This reman Vac Pwr Brake Booster w/o Master Cyl is engineered for direct replacement service on 1987-1998 Ford F-250, 1997 Ford F-250 HD, and 1987-1997 Ford F-350 models.

Key Features

• Vacuum booster design for power-assisted braking
• Dual-diaphragm construction for strong assist response
• Standard replacement brake service grade
• Metal housing for durable underhood use
• Remanufactured unit with new replacement and specially treated components
• 100% end-of-line tested with proprietary equipment
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included

Product Details

MPA Electrical B1004 is a vacuum-type, dual-diaphragm power brake booster with a 10.85-inch diaphragm diameter and a metal housing. It uses two mounting studs and a 3/8-16 master cylinder stud thread size. The remanufactured construction focuses on vacuum seal integrity and pressure transfer, helping restore brake assist performance on Ford F-250, Ford F-250 HD, and Ford F-350 trucks from the listed model years. This part cross-references Ford service numbers E8TZ2005A and F3TZ2005A for the same application.

What It Helps Address

• Hard brake pedal feel
• Reduced brake assist from a worn vacuum booster
• Inconsistent pedal response during braking
• Vacuum seal loss in an aging booster assembly
• Brake performance decline caused by internal diaphragm wear

Installation Notes

Verify the vehicle’s original booster style, diaphragm size, and mounting layout before installation. This B1004 does not include the master cylinder, gasket or seal, front seal, mounting bracket, or brake pedal rod extension, so reuse or source the correct related components as needed. Confirm master cylinder stud thread size and vehicle-specific fitment before assembly on Ford F-250, Ford F-250 HD, or Ford F-350 applications.

Quality Assurance

MPA Electrical remanufactures this brake booster with replacement and specially treated components, then tests every unit at the end of the line to confirm performance before release.