MPA Electrical B5087 Power Brake Booster

Hydraulic Brake Booster for GM HD Trucks

MPA Electrical B5087 is a remanufactured hydraulic power brake booster built for direct replacement on select Chevrolet Silverado and GMC Sierra heavy-duty applications. It is engineered for strong braking assist with reduced pedal effort, with remanufactured and specially treated components to support vacuum sealing, pressure transfer, and consistent brake response.

This reman hyd pwr brake booster w/o master cyl is a standard replacement part for drivers servicing brake assist concerns on 2012-2014 Chevrolet Silverado 2500 HD, 2012-2014 Chevrolet Silverado 3500 HD, 2012-2014 GMC Sierra 2500 HD, and 2012-2014 GMC Sierra 3500 HD applications. Part number B5087 is also referenced for 2012-2013 Chevrolet Silverado 3500, 2012-2013 Chevrolet Suburban 2500, 2012-2013 GMC Yukon XL 2500, and 2012 Chevrolet Silverado 2500.

• Remanufactured hydraulic power brake booster
• Standard replacement brake service grade
• Metal housing for durable mounting support
• Mounting bracket included
• Master cylinder stud thread size: 10 x 1.5
• Two mounting studs
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included

Product Details and Fitment

MPA Electrical B5087 is built as a hydraulic booster assembly for vehicles that rely on hydraulic brake assist rather than a vacuum-only setup. The remanufactured construction uses replacement and specially treated components, and each unit is end-of-line tested with proprietary equipment to verify performance before release. If you are replacing a worn booster on a Chevrolet Silverado 2500 HD, Silverado 3500 HD, or GMC Sierra HD truck, B5087 provides a direct-service solution for the brake assist system.

This part cross-references 19371365 and 22745516 for the same application.

Common Brake Assist Issues It Can Address

• Hard brake pedal feel
• Reduced brake assist during stopping
• Inconsistent pedal response
• Brake booster leakage or seal failure
• Loss of hydraulic pressure transfer in the booster assembly

Installation Notes and Quality Assurance

Verify master cylinder compatibility before installation, since the master cylinder is not included. Confirm the 10 x 1.5 stud thread size, mounting bracket alignment, and hydraulic connections against the original unit before removal. Bleed and inspect the brake system after installation to restore proper pedal feel and braking performance.

MPA Electrical subjects each booster to 100% end-of-line testing using proprietary test equipment to confirm function and output consistency. The remanufactured design and tested components are intended to deliver reliable brake assist for the listed Chevrolet and GMC applications.