MPA Electrical B1342 Power Brake Booster

Remanufactured Vacuum Brake Booster

MPA Electrical B1342 is a remanufactured vacuum power brake booster for vehicles that need consistent brake assist and a firm, responsive pedal feel. It is built for 2006-2010 Jeep Commander and 2006-2010 Jeep Grand Cherokee applications that use a vacuum booster without a master cylinder.

The MPA Electrical brake booster line is engineered around reliable vacuum sealing, steady pressure transfer, and end-of-line testing. This reman Vac Pwr Brake Booster w/o Master Cyl is a standard replacement part with a metal housing, a 9.82-inch diaphragm diameter, two mounting studs, and an 8 x 1.25 mm master cylinder stud thread size.

• Standard replacement brake service grade
• Vacuum booster design for power-assisted braking
• Remanufactured metal housing construction
• 9.82-inch diaphragm diameter
• Two mounting studs
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket, gasket or seal, and front seal not included

Fitment Details

• Fits 2006-2010 Jeep Commander, N/A
• Fits 2006-2010 Jeep Grand Cherokee, N/A

This part cross-references 5175731AA for the same application.

What This Part Helps Address

• Hard brake pedal feel from a weak or leaking booster
• Reduced brake assist during normal stopping
• Vacuum loss that affects pedal response
• Brake system performance issues tied to booster wear
• Replacement needs after booster diaphragm or seal deterioration

Installation Notes

Verify the master cylinder stud thread size, mounting stud layout, and booster-to-firewall fit 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 points before returning the vehicle to service.

Quality Assurance

MPA Electrical states that these brake boosters are tested at the end of the production process with proprietary equipment to verify performance and vacuum sealing. The remanufactured design uses treated replacement components to support consistent braking assist in daily driving conditions.