MPA Electrical B1230 Power Brake Booster

Overview

This remanufactured vacuum power brake booster is built for vehicles that need restored brake assist and consistent pedal response. MPA Electrical B1230 is a standard replacement unit with a metal housing and 235.97 mm diaphragm diameter for vacuum-assisted braking systems.

Compatible with 1989 Buick Electra, 1989 Buick LeSabre, 1989 Cadillac DeVille, 1989 Cadillac Fleetwood, 1989 Oldsmobile 98, 1989 Oldsmobile Delta 88, and 1989 Pontiac Bonneville. This part number is B1230.

Key Features

• Remanufactured vacuum brake booster for standard replacement service
• Metal housing construction for the booster assembly
• 235.97 mm diaphragm diameter for vacuum assist operation
• 10 x 1.5 mm master cylinder stud thread size
• Two mounting studs for installation alignment
• MPA Electrical B1230 cross-references 18015784 for the same application

Detailed Description

MPA Electrical B1230 is a remanufactured power brake booster engineered to restore vacuum assist and reduce pedal effort in supported applications. The unit is tested for pressure transfer and vacuum sealing, and it is supplied without a master cylinder, brake pedal rod extension, gasket, seal, or mounting bracket. For 1989 Buick Electra and LeSabre, as well as 1989 Cadillac DeVille and Fleetwood, this booster provides a direct service replacement for the original vacuum booster assembly. It also fits 1989 Oldsmobile 98, 1989 Oldsmobile Delta 88, and 1989 Pontiac Bonneville.

Common Replacement Reasons

• Hard brake pedal feel from a weak or leaking booster
• Reduced vacuum assist during braking
• Loss of consistent pedal response
• Brake assist issues caused by internal diaphragm or seal wear
• Need for a remanufactured replacement booster with the correct stud thread size

Installation Notes

Verify vacuum brake booster fitment by year, make, and model before installation. Confirm the master cylinder stud thread size is 10 x 1.5 mm and compare the existing booster configuration to this remanufactured unit. Because the master cylinder is not included, transfer or source the correct matching components separately as needed. Follow factory service procedures for brake system inspection, vacuum line checks, and pedal adjustment after installation.

Quality Assurance

MPA Electrical subjects each unit to end-of-line testing with proprietary equipment to verify performance before release. The remanufactured construction and tested vacuum sealing help support reliable brake assist in the intended applications.