MPA Electrical B1073 Power Brake Booster

Reman Vacuum Brake Booster for Jeep CJ

Restore consistent brake assist with the MPA Electrical B1073 remanufactured vacuum power brake booster. Built for Jeep CJ applications, this standard replacement booster is engineered for low pedal effort and dependable vacuum sealing in everyday driving and braking situations.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Single-diaphragm design with metal housing
• Master cylinder not included
• No brake pedal rod extension, gasket, seal, or mounting bracket included
• 2 mounting studs with 3/8-16 master cylinder stud thread size
• Diaphragm diameter: 8.93 in. (226.82 mm)

Product Details

The MPA Electrical B1073 is a reman vac pwr brake booster w/o master cyl built to deliver braking assist with minimal pedal effort. New replacement and specially treated internal components are used to support vacuum sealing, pressure transfer, and consistent brake response. Each unit is end-of-line tested with proprietary equipment before release.

Compatible with 1982-1986 Jeep CJ7, 1982-1985 Jeep Scrambler, and 1982-1983 Jeep CJ5. This part number, B1073, is also referenced under interchange number J8133909 for the same application.

Common Brake Booster Symptoms

• Hard brake pedal feel
• Reduced brake assist during stops
• Vacuum leak at the booster assembly
• Inconsistent pedal response
• Brake performance loss on Jeep CJ7, Scrambler, or CJ5 models

Installation Notes

Verify master cylinder compatibility before installation, since the master cylinder is not included. Confirm the 3/8-16 stud thread size, mounting stud count, and vehicle-specific pedal rod setup against the original unit. Inspect vacuum supply, check valves, and related brake components during replacement to ensure proper system operation on Jeep CJ7, Jeep Scrambler, and Jeep CJ5 applications.

Quality Assurance

MPA Electrical remanufactures this brake booster with tested components and 100% end-of-line verification to help ensure reliable vacuum seal performance and consistent braking assist.