MPA Electrical B1431 Power Brake Booster

Vacuum Brake Booster for GM and Saab

MPA Electrical B1431 is a remanufactured vacuum power brake booster built for vehicles that need consistent brake assist and a firm, predictable pedal feel. This standard replacement unit is engineered for reliable vacuum sealing, efficient pressure transfer, and tested performance in everyday driving conditions.

The MPA Electrical brake booster line focuses on remanufactured replacement units with treated internal components and end-of-line testing. That process helps deliver dependable assist characteristics for drivers servicing a Buick Cascada, Buick Verano, Chevrolet Cruze, Buick Regal, or Saab 9-5 with the correct vacuum booster application.

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included
• Mounting bracket not included
• Master cylinder stud thread size: 18x1.5
• Two mounting studs

Fitment Details

• Fits 2016-2019 Buick Cascada, N/A
• Fits 2012-2016 Buick Verano, N/A
• Fits 2011-2015 Chevrolet Cruze, N/A
• Fits 2011 Buick Regal, N/A
• Fits 2010-2011 Saab 9-5, N/A

This part cross-references 13442086 for the same application.

What This Part Helps Address

• Hard brake pedal feel from a weak or failing vacuum booster
• Reduced brake assist during normal stopping
• Vacuum seal loss that affects pedal response
• Uneven or inconsistent brake assist after booster wear
• Brake system service needs on GM and Saab vehicles with the listed fitments

Installation Notes

Verify master cylinder transfer, pushrod setup, and mounting stud thread size before installation. Because the master cylinder, gasket or seal, front seal, mounting bracket, and brake pedal rod extension are not included, reuse or source the correct related components as needed for the vehicle. Confirm vacuum hose condition and inspect the brake system for leaks before returning the vehicle to service.

Quality Assurance

MPA Electrical subjects each booster to 100% end-of-line testing using proprietary equipment to confirm vacuum seal integrity and pressure transfer performance. The remanufactured construction and treated components are selected to support consistent braking assist in the specified applications.