MPA Electrical B3635 Power Brake Booster

Remanufactured Vacuum Brake Booster

The MPA Electrical B3635 is a remanufactured vacuum power brake booster built for direct replacement on select Mitsubishi applications. It is engineered to deliver strong braking assist with reduced pedal effort, using treated replacement components and end-of-line testing to help maintain vacuum seal integrity and consistent pressure transfer.

Compatible with 2008-2011 Mitsubishi Lancer and 2007-2010 Mitsubishi Outlander, this vacuum booster is a practical choice when the original brake booster is leaking, losing assist, or causing a hard brake pedal. The B3635 is supplied without a master cylinder and uses a metal housing with a 10.67-inch diaphragm diameter.

Key Features

• Remanufactured vacuum power brake booster
• Brake service grade: standard replacement
• Metal housing for OE-style fit and function
• 10.67 in. diaphragm diameter
• Mounting bracket included
• 2 mounting studs
• Master cylinder stud thread size: 8 x 1.25 mm
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included

Product Details

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement boosters that restore vacuum-assisted braking performance for everyday driving conditions. For the B3635, that means a remanufactured unit with new replacement and specially treated components, plus 100% end-of-line testing to verify function before it leaves the factory. This part cross-references Mitsubishi OE numbers 4630A093 and 4630A127 for the same application.

Common Brake Issues This Part Can Address

• Hard brake pedal feel from loss of vacuum assist
• Reduced braking assist during normal pedal application
• Brake booster vacuum leak symptoms
• Inconsistent pedal response after booster wear
• Replacement needs after booster diaphragm or seal deterioration

Installation Notes

Verify master cylinder condition, pushrod setup, and mounting alignment before installation. Because the master cylinder is not included, transfer or replace related brake components as needed during service. Confirm the 8 x 1.25 mm stud thread size and the vehicle-specific mounting pattern before final assembly on 2008-2011 Mitsubishi Lancer or 2007-2010 Mitsubishi Outlander models.

Quality Assurance

Each MPA Electrical brake booster is tested at the end of the production process using proprietary equipment to confirm performance and sealing integrity. The remanufacturing process is focused on restoring reliable vacuum assist and consistent brake pedal response for the listed Mitsubishi applications.