MPA Electrical B1025 Power Brake Booster

Reman Vacuum Brake Booster for Ford and Lincoln

MPA Electrical B1025 is a remanufactured vacuum power brake booster built for vehicles that need consistent brake assist and a firm, predictable pedal feel. This standard replacement booster is engineered for direct brake system service on select Ford Expedition, Ford F-150, Ford F-250, Ford F-350, Ford F-150 Heritage, Lincoln Navigator, and Lincoln Blackwood applications.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Dual-diaphragm design for braking assist
• Metal housing construction
• 10.93 in. diaphragm diameter (277.62 mm)
• Master cylinder stud thread size: 3/8-16
• Two mounting studs
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included
• Mounting bracket not included

Product Details

The MPA Electrical B1025 reman vac pwr brake booster w/o master cyl is built to restore vacuum-assisted braking performance in vehicles that rely on a dual-diaphragm booster assembly. MPA Electrical remanufactures and tests each unit with end-of-line verification to confirm pressure transfer and vacuum sealing performance. This part cross-references 5L3Z-2005-BA for the same application.

Compatible With 2008 Ford Expedition, N/A; 1997-2002 Ford Expedition, N/A; 2008 Lincoln Navigator, N/A; 1998-2002 Lincoln Navigator, N/A; 2004 Ford F-150 Heritage, N/A; 1999-2003 Ford F-150, N/A; 1997-2003 Ford F-250, N/A; 2002-2003 Lincoln Blackwood, N/A; 1999-2000 Ford F-350, N/A.

Common Reasons for Replacement

• Hard brake pedal feel
• Reduced brake assist from vacuum loss
• Inconsistent pedal response during braking
• Brake booster leakage or seal failure
• Loss of stopping confidence in Ford Expedition or Lincoln Navigator brake systems

Installation Notes

Verify master cylinder compatibility before installation, since the master cylinder is not included. Confirm the 3/8-16 stud thread size, mounting stud layout, and pedal rod configuration against the original booster before removal. On Ford F-150, Ford F-250, Ford F-350, and Lincoln Navigator applications, inspect vacuum supply, check the brake pedal linkage, and replace worn seals or related components as needed during service.

Quality Assurance

MPA Electrical remanufactures this booster with new replacement and specially treated components to improve vacuum sealing, pressure transfer, and overall braking performance. Each unit is subjected to 100% end-of-line testing using proprietary equipment before release.