MPA Electrical B1145 Power Brake Booster

Remanufactured Vacuum Brake Booster for GM SUVs

Restore consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for 1994 Chevrolet S10 Blazer, GMC Jimmy, and Oldsmobile Bravada applications, Part Number B1145 is a standard replacement for vehicles that need reliable vacuum-assisted braking with reduced pedal effort.

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement boosters that are tested for vacuum seal integrity and pressure transfer. This B1145 unit is remanufactured, uses a vacuum booster design, and is built with a metal housing and an 11.02-inch diaphragm for direct brake assist performance.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• 11.02 in. diaphragm diameter
• 2 mounting studs with 10 x 1.50 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

Detailed Product Overview

Part Number B1145 is engineered for vacuum brake systems that require dependable assist and predictable pedal response. It is a remanufactured power brake booster designed to transfer vacuum pressure efficiently, helping maintain braking feel in daily driving and stop-and-go conditions. This MPA Electrical brake booster is a direct-fit replacement for 1994 Chevrolet S10 Blazer, 1994 GMC Jimmy, and 1994 Oldsmobile Bravada applications.

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

Common Brake Booster Issues It Can Address

• Hard brake pedal feel
• Reduced brake assist from vacuum loss
• Inconsistent pedal response during braking
• Brake system performance loss caused by a worn booster diaphragm
• Vacuum seal problems in aging brake booster assemblies

Installation Notes and Tips

Verify master cylinder stud thread size, mounting stud layout, and booster-to-firewall fitment before installation. This unit does not include the master cylinder, brake pedal rod extension, mounting bracket, gasket or seal, or front seal, so reuse or source the required related components as needed for the vehicle. Confirm vacuum hose condition and inspect the brake hydraulic system for leaks before returning the vehicle to service.

Compatible with 1994 Chevrolet S10 Blazer, 1994 GMC Jimmy, and 1994 Oldsmobile Bravada. Search terms such as 1994 Chevrolet S10 Blazer brake booster replacement, 1994 GMC Jimmy vacuum brake booster, and 1994 Oldsmobile Bravada power brake booster B1145 align with this application.

Quality Assurance

MPA Electrical subjects each unit to 100% end-of-line testing using proprietary test equipment to verify performance before release. The remanufacturing process includes new replacement and specially treated components to support vacuum sealing, pressure transfer, and overall brake booster function.