MPA Electrical B1252 Power Brake Booster

Remanufactured Vacuum Brake Booster for Chrysler and Dodge

MPA Electrical B1252 is a remanufactured vacuum power brake booster built for direct replacement on select Chrysler and Dodge applications. It is engineered for strong braking assist with reduced pedal effort, with replacement and specially treated internal components that support vacuum sealing and pressure transfer.

Compatible With 2005-2007 Chrysler 300, 2006-2007 Dodge Charger, and 2005-2007 Dodge Magnum. This part number, B1252, is a standard replacement booster for vehicles that use a vacuum-assisted brake system without a master cylinder included.

Key Features

• Vacuum booster design for power-assisted braking
• Remanufactured standard replacement unit
• Metal housing construction
• 243.59 mm / 9.59 in diaphragm diameter
• 2 mounting studs with 8 x 1.25 mm master cylinder stud thread size
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket, gasket or seal, and front seal not included

Product Details

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on restored brake assist performance for vehicles that rely on vacuum boost. Part B1252 is remanufactured and tested to support consistent pedal response, with end-of-line testing performed on every unit using proprietary equipment. This booster is a direct-fit style replacement for Chrysler 300, Dodge Charger, and Dodge Magnum models listed in the fitment data.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Hard brake pedal feel
• Reduced brake assist from a failing vacuum booster
• Brake response issues caused by booster diaphragm wear
• Vacuum seal loss in the brake assist system
• Replacement needs on remanufactured brake booster service jobs

Installation Notes

Verify vacuum brake booster style, diaphragm size, and master cylinder stud thread size before installation. This unit does not include a master cylinder, brake pedal rod extension, gasket or seal, front seal, or mounting bracket, so reuse or source the required related components as needed for the vehicle. Confirm fitment for the specific Chrysler 300, Dodge Charger, or Dodge Magnum model year before service.

Quality Assurance

MPA Electrical remanufactures this booster with replacement and specially treated components, then subjects each unit to 100% end-of-line testing to confirm performance before release.