MPA Electrical B1002 Power Brake Booster

Reman Vacuum Brake Booster for GM and Isuzu

MPA Electrical B1002 is a remanufactured vacuum power brake booster built for direct replacement in select Chevrolet, GMC, Isuzu, and Oldsmobile applications. It is engineered for strong braking assist with low pedal effort, using a dual-diaphragm design and a 10.9-inch diaphragm diameter for consistent vacuum-assisted braking response.

This reman Vac Pwr Brake Booster w/o Master Cyl is part of the MPA Electrical brake booster line, which focuses on replacement boosters with treated components, improved vacuum sealing, and end-of-line testing. B1002 is a standard replacement for vehicles that need a vacuum booster without the master cylinder included.

Key Features

• Part number B1002 remanufactured vacuum power brake booster
• Dual diaphragm design for vacuum-assisted brake pedal support
• 10.9-inch diaphragm diameter
• Metal housing construction
• Standard replacement brake service grade
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included
• 10 x 1.50 master cylinder stud thread size
• 2 mounting studs

Detailed Description

MPA Electrical B1002 is designed for drivers replacing a worn vacuum brake booster on 1995-1997 Chevrolet Blazer, 1995-1997 Chevrolet S10, 1995-1997 GMC Jimmy, 1995-1997 GMC Sonoma, 1996-1997 Isuzu Hombre, and 1996-1997 Oldsmobile Bravada. It supports vacuum brake assist by transferring engine vacuum into braking force, helping maintain a firm pedal feel and predictable stopping response. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Use B1002 when replacing a vacuum booster on a Chevrolet Blazer brake booster replacement, GMC Sonoma power brake booster replacement, or Isuzu Hombre vacuum brake booster application. The remanufactured construction and tested sealing components are aimed at restoring proper pressure transfer in the brake system.

What It Helps Fix

• Hard brake pedal feel caused by booster vacuum loss
• Reduced braking assist during normal pedal application
• Brake pedal effort that has increased over time
• Brake response issues related to a failing booster diaphragm
• Vacuum seal problems in the brake booster assembly

Installation Notes and Tips

Verify master cylinder fitment before installation, since the master cylinder is not included. Confirm the 10 x 1.50 stud thread size, the 2-stud mounting pattern, and the vehicle-specific brake booster configuration before removal of the original unit. Inspect the brake pedal rod connection, vacuum supply, and mounting surfaces during service to ensure proper brake assist after installation.

Quality Assurance

MPA Electrical reman brake boosters are subjected to 100% end-of-line testing with proprietary test equipment. The manufacturing process uses new replacement and specially treated components to support vacuum sealing, pressure transfer, and consistent performance across the brake booster assembly.