MPA Electrical B1253 Power Brake Booster

Remanufactured Vacuum Brake Booster

MPA Electrical B1253 is a remanufactured vacuum power brake booster for select Ford and Lincoln applications. It is built for drivers who need consistent brake assist and a firm, predictable pedal feel in everyday stopping conditions.

This reman vac pwr brake booster w/o master cyl is engineered with replacement and specially treated components to help maintain vacuum sealing, pressure transfer, and braking performance. It is a direct-fit service part for 2003-2005 Ford Thunderbird and 2004-2005 Lincoln LS applications.

Key Features

• Remanufactured standard replacement brake booster
• Vacuum booster design for power-assisted braking
• Brake pedal rod extension included
• Metal housing for durable construction
• Master cylinder not included
• 8x1.25 master cylinder stud thread size
• Two mounting studs
• Product condition: remanufactured

Product Details

MPA Electrical B1253 is designed for brake systems that use vacuum assist to reduce pedal effort. The remanufacturing process includes new replacement and specially treated components, along with end-of-line testing on every unit to verify performance before release. This part cross-references Monroe Shocks & Struts (e.g., 3W4Z2005AA) for the same application.

Compatible With 2003-2005 Ford Thunderbird and 2004-2005 Lincoln LS, this booster is a practical replacement when the original unit no longer holds vacuum or delivers consistent assist. The MPA Electrical B1253 designation is useful when matching the correct service part for these vehicles.

Common Issues This Part Can Address

• Hard brake pedal feel
• Reduced vacuum assist during braking
• Loss of braking response from a leaking booster
• Inconsistent pedal travel or assist
• Brake system performance concerns tied to booster wear

Installation Notes

Verify the vehicle’s brake system configuration before installation. This unit does not include the master cylinder, mounting bracket, or front seal, so those components must be confirmed separately during service. Check the master cylinder stud thread size, mounting stud layout, and pedal rod extension fitment before assembly. The B1253 is listed for 2003-2005 Ford Thunderbird and 2004-2005 Lincoln LS applications only.

Quality Assurance

MPA Electrical states that each booster is tested at the end of production using proprietary equipment to confirm vacuum sealing and pressure transfer performance. The remanufactured construction and tested output help support reliable brake assist in the specified Ford Thunderbird and Lincoln LS applications.