MPA Electrical B1110 Power Brake Booster

Reman Vacuum Power Brake Booster for GM B-Body Applications

MPA Electrical B1110 is a remanufactured vacuum power brake booster built for select Cadillac, Buick, Chevrolet, Oldsmobile, and Pontiac full-size rear-wheel-drive applications. It is engineered for strong vacuum assist and low pedal effort, with a dual-diaphragm design that supports consistent brake feel in daily driving.

The B1110 is a standard replacement brake booster with a metal housing, 10.85-inch diaphragm diameter, and 10 x 1.50 master cylinder stud thread size. This unit is supplied without a master cylinder, brake pedal rod extension, gasket or seal, front seal, or mounting bracket.

Key Features

• Remanufactured vacuum power brake booster
• Dual-diaphragm construction for braking assist
• Metal housing for OE-style fit and durability
• Standard replacement brake service grade
• 10.85-inch diaphragm diameter
• Master cylinder stud thread size: 10 x 1.50
• Two mounting studs
• Fits select Cadillac Brougham, Chevrolet Caprice, and Buick LeSabre applications

Product Details

MPA Electrical’s reman vac pwr brake booster w/o master cyl line focuses on restored braking performance through new replacement and specially treated internal components. The booster is tested at the end of the production process to verify vacuum sealing and pressure transfer performance. For shoppers searching for a reman brake booster for 1981-1992 Cadillac, Chevrolet, Buick, Oldsmobile, and Pontiac vehicles, B1110 provides a direct-fit service replacement for the listed applications.

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

Common Brake Issues This Part Can Address

• Hard brake pedal feel from a weak vacuum booster
• Reduced braking assist during normal pedal application
• Vacuum leakage at the booster housing
• Inconsistent pedal response in stop-and-go driving
• Brake performance concerns on aging GM full-size platforms

Installation Notes and Fitment

Compatible with select 1981-1992 Cadillac Brougham, 1981-1984 Cadillac Commercial Chassis, 1981-1990 Buick LeSabre, 1981-1990 Chevrolet Caprice, 1981-1990 Oldsmobile Custom Cruiser, 1987-1989 Pontiac Safari, 1986 and 1981-1984 Cadillac Fleetwood, 1981-1986 Pontiac Parisienne, 1981-1985 Chevrolet Impala, 1981-1985 Oldsmobile Delta 88, 1981-1984 Cadillac DeVille, 1981-1984 Oldsmobile 98, 1981 Chevrolet Bel Air, 1981 Pontiac Bonneville, 1981 Pontiac Catalina, and 1981 Pontiac Laurentian.

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 condition and inspect the brake pedal linkage and seals during installation.

Quality Assurance

MPA Electrical remanufactures this booster with treated replacement components and end-of-line testing to confirm vacuum seal integrity and pressure transfer performance. The result is a tested replacement brake booster for the specified GM applications.