MPA Electrical B1001 Power Brake Booster

Remanufactured Vacuum Brake Booster

MPA Electrical B1001 is a remanufactured vacuum power brake booster built for direct replacement service on select GM trucks and SUVs. It is engineered for strong braking assist with low pedal effort, making it a practical choice for restoring consistent brake feel on Chevrolet and GMC applications.

This Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement-ready fit and tested performance. The unit uses a dual-diaphragm vacuum design, a metal housing, and 10.8-inch diaphragm diameter construction to support reliable vacuum transfer in everyday driving conditions.

Key Features

• Brand: MPA Electrical
• Part Number: B1001
• Remanufactured standard replacement brake booster
• Vacuum booster type with dual diaphragm design
• 10.8-inch diaphragm diameter
• Metal housing construction
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included
• 2 mounting studs with 10 x 1.50 mm master cylinder stud thread size
• Interchanges with 18021896, 18029985, and 18029986

Product Details

MPA Electrical B1001 is built for drivers and repair shops looking for a remanufactured vacuum brake booster that restores braking assist without changing the master cylinder. The dual-diaphragm layout helps deliver steady vacuum assist, while specially treated replacement components are used to support vacuum sealing and pressure transfer. Each unit is end-of-line tested with proprietary equipment before release.

Compatible With 1994-1996 Chevrolet C1500, 1994-1996 Chevrolet C1500 Suburban, 1994-1996 Chevrolet C2500, 1994-1996 Chevrolet C2500 Suburban, 1994-1996 Chevrolet K1500, 1994-1996 Chevrolet K1500 Suburban, 1994-1996 Chevrolet K2500, 1994-1996 Chevrolet K2500 Suburban, 1995-1996 Chevrolet Tahoe, 1994-1996 GMC C1500, 1994-1996 GMC C1500 Suburban, 1994-1996 GMC C2500, 1994-1996 GMC C2500 Suburban, 1994-1996 GMC K1500, 1994-1996 GMC K1500 Suburban, 1994-1996 GMC K2500, 1994-1996 GMC K2500 Suburban, 1994-1996 GMC Yukon, 1995 Chevrolet Silverado, 1995 Chevrolet Suburban 1500, and 1994 Chevrolet Blazer. This part cross-references 18021896 and 18029985 for the same application.

Common Repair Uses

• Restoring hard brake pedal feel
• Replacing a booster with reduced vacuum assist
• Addressing inconsistent pedal response during braking
• Repairing vacuum leakage at the booster assembly
• Replacing a worn booster on Chevrolet and GMC truck or SUV brake systems

Installation Notes

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

Quality Assurance

MPA Electrical remanufactures this booster with replacement and specially treated components, then tests every unit at the end of the line using proprietary equipment to verify performance before shipment.