MPA Electrical B3718 Power Brake Booster

Vacuum Brake Booster for Volkswagen Applications

MPA Electrical B3718 is a remanufactured vacuum power brake booster built for Volkswagen brake systems that need consistent assist and a firm pedal feel. It is engineered for direct replacement use on select Volkswagen Beetle, Jetta, Jetta City, Beetle Cabrio, and Clasico applications.

The MPA Electrical brake booster line focuses on restored vacuum sealing, dependable pressure transfer, and end-of-line testing for each unit. This reman vac pwr brake booster w/o master cyl is a standard replacement part for drivers servicing a worn or leaking booster on Volkswagen Jetta and Beetle platforms.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included
• Mounting bracket not included
• 2 mounting studs
• Master cylinder stud thread size: 8x1.25

Detailed Description

MPA Electrical B3718 is a remanufactured vacuum brake booster designed to restore brake assist on select Volkswagen vehicles. It uses a metal housing and a vacuum booster design to support reliable pedal assist, while the remanufacturing process includes replacement and specially treated components to improve vacuum sealing and pressure transfer. This part cross-references 1J1612105M and 1J1612105T for the same application.

Compatible With 1993-2010 Volkswagen Jetta, 2006-2010 Volkswagen Beetle, 2007-2009 Volkswagen Jetta City, 2010-2011 Volkswagen Beetle Cabrio, and 2011-2015 Volkswagen Clasico. The B3718 part number is also a useful reference when sourcing a reman vacuum power brake booster for Volkswagen Jetta and Beetle brake repair.

What It Helps Address

• Hard brake pedal feel from a weak booster
• Reduced brake assist during normal stopping
• Vacuum seal loss in the booster assembly
• Inconsistent pedal response after booster wear
• Brake system service needs on Volkswagen Jetta and Beetle models

Installation Notes and Tips

Verify master cylinder transfer and mounting details before installation, since the master cylinder is not included. Confirm the 8x1.25 master cylinder stud thread size, the 2-stud mounting pattern, and the vehicle-specific brake pedal connection before removal of the original unit. This B3718 booster is a direct-fit style replacement for the listed Volkswagen applications, but the existing brake system should be inspected for vacuum leaks and related wear before final assembly.

Quality Assurance

Each MPA Electrical brake booster is subjected to 100% end-of-line testing using proprietary test equipment. The remanufactured design is built to deliver consistent braking assist and dependable performance for the listed Volkswagen applications.