MPA Electrical B3211 Power Brake Booster

Remanufactured Vacuum Brake Booster for Montero

Restore consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for 1990-2000 Mitsubishi Montero applications, Part Number B3211 is a standard replacement unit for drivers needing reliable pedal assist and stable vacuum sealing.

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement boosters that are tested for pressure transfer and pedal response. This B3211 unit is remanufactured, uses a metal housing, and is engineered for direct brake booster replacement on Mitsubishi Montero models listed below.

Key Features

• Vacuum-type power brake booster
• Standard replacement brake service grade
• Remanufactured construction with metal housing
• 247.4 mm / 9.74 in diaphragm diameter
• 2 mounting studs with 8 x 1.25 mm master cylinder stud thread size
• Master cylinder not included
• Brake pedal rod extension not included
• Gasket or seal not included
• Front seal not included
• Mounting bracket not included

Detailed Description

MPA Electrical B3211 is a remanufactured vacuum brake booster designed for Mitsubishi Montero brake systems that require vacuum-assisted pedal support. It is built to deliver braking assist with reduced pedal effort while maintaining dependable vacuum sealing and pressure transfer. This part number B3211 is listed for 1990-2000 Mitsubishi Montero applications and is a direct-fit replacement for vehicles using the specified booster configuration.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 1990-2000 Mitsubishi Montero, N/A

Common Problems This Part Can Address

• Hard brake pedal feel from a weak or failing vacuum booster
• Reduced brake assist during normal stopping
• Vacuum leakage at the booster assembly
• Inconsistent pedal response under braking
• Replacement needs after booster wear or internal diaphragm failure

Installation Notes and Tips

Confirm the master cylinder stud thread size is 8 x 1.25 mm before installation. Verify the existing booster configuration matches the vehicle listing for your Mitsubishi Montero, and transfer any required components that are not included with this unit. Inspect the brake system for vacuum supply issues, pedal linkage condition, and master cylinder condition during replacement.

Quality Assurance

MPA Electrical states that these brake boosters are 100% end-of-line tested using proprietary equipment. The remanufacturing process includes new replacement and specially treated components to support vacuum sealing, pressure transfer, and consistent braking performance.