MPA Electrical B5088 Power Brake Booster

Hydraulic Brake Booster for Express and Savana

MPA Electrical B5088 is a remanufactured hydraulic power brake booster for Chevrolet Express and GMC Savana vans. It is built for standard replacement service and is engineered to deliver strong braking assist with reduced pedal effort.

This reman hyd pwr brake booster w/o master cyl is a direct-fit option for 2012-2025 Chevrolet Express 2500 and Express 3500, plus 2012-2025 GMC Savana 2500 and Savana 3500 applications. The B5088 is designed for vehicles that use a hydraulic booster layout and do not include a master cylinder with the booster assembly.

Key Features

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

Product Details

MPA Electrical’s reman hyd pwr brake booster w/o master cyl is rebuilt and tested to restore hydraulic brake assist performance on Chevrolet Express and GMC Savana vans. The product line focuses on consistent vacuum and pressure transfer characteristics, with treated replacement components and end-of-line testing used to verify operation before release. Part number B5088 is a practical OE-style replacement for service work where the booster is replaced without the master cylinder.

This part cross-references GM OE numbers 22800156 and 84474523 for the same application.

What It Helps Fix

• Hard brake pedal feel
• Reduced brake assist from a worn hydraulic booster
• Inconsistent pedal response during braking
• Brake assist loss caused by internal booster wear or seal issues
• Service replacement needs on Express and Savana brake systems

Installation Notes

Verify hydraulic booster style, master cylinder stud thread size, and mounting points before installation. This unit includes the mounting bracket, but does not include the master cylinder, brake pedal rod extension, or gasket/seal. Confirm fitment for 2012-2025 Chevrolet Express 2500 and Express 3500, as well as 2012-2025 GMC Savana 2500 and Savana 3500, 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 using proprietary equipment to confirm braking assist performance and pressure transfer.