MPA Electrical B1101 Power Brake Booster

Remanufactured Vacuum Brake Booster for Saturn

Restore firm, consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for Saturn SC1, SC2, SL, SL1, SL2, SW1, SW2, and SC applications, Part Number B1101 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 B1101 unit is remanufactured, uses a single diaphragm design, and is built with a metal housing for dependable service in daily driving conditions.

Key Features

• Part Number: B1101
• Brand: MPA Electrical
• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Single diaphragm design
• Metal housing construction
• 10.55 in. diaphragm diameter (267.97 mm)
• Master cylinder stud thread size: 10 x 1.50 mm
• 2 mounting studs
• Master cylinder not included

Detailed Description

This vacuum brake booster is engineered to deliver braking assist with minimal pedal effort while maintaining reliable pressure transfer. New replacement and specially treated internal components help support a strong vacuum seal, and each unit is 100% end-of-line tested with proprietary equipment before release. The B1101 is a direct-fit style replacement for Saturn brake systems that use a vacuum booster without an included master cylinder.

Fits 1993-1999 Saturn SC1, Fits 1993-1999 Saturn SC2, Fits 1991-1999 Saturn SL, Fits 1991-1999 Saturn SL1, Fits 1991-1999 Saturn SL2, Fits 1993-1999 Saturn SW1, Fits 1993-1999 Saturn SW2, and Fits 1991-1992 Saturn SC. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Hard brake pedal feel
• Reduced brake assist during stopping
• Vacuum leak symptoms at the booster
• Inconsistent pedal response
• Brake system performance loss from a worn booster

Installation Notes and Tips

Verify master cylinder stud thread size, mounting stud layout, and booster depth before installation. This unit does not include a master cylinder, brake pedal rod extension, gasket or seal, front seal, or mounting bracket. Confirm the vehicle’s brake system configuration matches the listed Saturn fitment before replacing the booster.

Quality Assurance

MPA Electrical remanufactures this booster with replacement and specially treated components, then tests each unit at the end of the line to confirm vacuum seal and pressure transfer performance. The result is a standard replacement brake booster built for consistent operation in the listed Saturn applications.