MPA Electrical B1184 Power Brake Booster

Vacuum Brake Booster for GM Full-Size Applications

MPA Electrical B1184 is a remanufactured vacuum power brake booster built for direct replacement service on select Cadillac and Chevrolet full-size vehicles. It is engineered to deliver strong braking assist with reduced pedal effort, helping restore consistent brake feel on vehicles such as the 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, and 1996 Cadillac Fleetwood.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• 11.03 in. diaphragm diameter for vacuum assist performance
• Metal housing construction
• 2 mounting studs with 10 x 1.5 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

Product Details

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement boosters that are rebuilt, treated, and tested for vacuum sealing and pressure transfer. B1184 follows that approach with a remanufactured metal housing and vacuum booster design intended to restore assist on GM applications that rely on stable pedal response. This part number, B1184, is a direct-fit style replacement for vehicles including the Cadillac Commercial Chassis, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala in the listed model years.

This part cross-references OE number 18029981 for the same application.

What It Helps Address

• Hard brake pedal feel caused by reduced vacuum assist
• Inconsistent braking response during normal driving and stop-and-go traffic
• Loss of pedal assist from a worn or leaking booster
• Brake system performance issues tied to aging booster components

Installation Notes

Verify master cylinder stud thread size, mounting stud layout, and booster depth before installation. Because the master cylinder is not included, transfer or replace related brake components as needed during service. Confirm vacuum supply integrity and inspect the brake pedal linkage and mounting surfaces before final assembly. B1184 is listed for 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, and 1996 Cadillac Fleetwood and Commercial Chassis applications.

Quality Assurance

MPA Electrical states that these brake boosters are tested at the end of production using proprietary equipment to verify performance and vacuum sealing. The remanufactured construction and component treatment are used to support reliable pressure transfer and consistent brake assist in service.