MPA Electrical B3270 Power Brake Booster

Remanufactured Vacuum Brake Booster for Toyota Avalon

MPA Electrical B3270 is a remanufactured vacuum power brake booster built for 1999-2005 Toyota Avalon applications. It is engineered to deliver strong braking assist with reduced pedal effort, using treated replacement components and end-of-line testing for consistent vacuum sealing and pressure transfer.

The MPA Electrical brake booster line focuses on remanufactured replacement units that restore brake assist performance without including the master cylinder. For Toyota Avalon owners searching for a reman vacuum power brake booster without master cylinder, B3270 provides a direct-fit service part for the listed vehicles.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• 11.26 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
• Mounting bracket, gasket or seal, and front seal not included

Detailed Description

MPA Electrical B3270 is a reman vac pwr brake booster w/o master cyl designed for 1999-2005 Toyota Avalon models. The vacuum booster design helps multiply pedal force so the brake system responds with less effort at the pedal. This part number, B3270, is built as a standard replacement unit with a metal housing and a large 11.26-inch diaphragm for consistent assist characteristics.

MPA Electrical reman brake boosters are processed with replacement and specially treated components to improve vacuum sealing, pressure transfer, and overall performance. Each unit is 100% end-of-line tested with proprietary equipment before release. This part cross-references Toyota OE numbers 4461007110 and 4461007111 for the same application.

What It Helps Fix

• Hard brake pedal feel on Toyota Avalon models
• Reduced brake assist from a failing vacuum booster
• Brake pedal effort that increases during normal driving
• Loss of vacuum seal in the brake booster assembly
• Brake response issues related to booster wear or internal leakage

Installation Notes and Tips

Fits 1999-2005 Toyota Avalon, N/A. Verify master cylinder stud thread size, mounting stud layout, and booster-to-firewall configuration before installation. Transfer or replace related brake components as needed during service, and confirm proper vacuum supply and pedal operation after installation. B3270 is supplied without the master cylinder, so the existing master cylinder must be reused or replaced separately if required.

Quality Assurance

MPA Electrical remanufactured brake boosters are tested at the end of production using proprietary test equipment to confirm vacuum seal integrity and pressure transfer performance. The remanufacturing process uses new replacement and specially treated components to support reliable brake assist in daily driving conditions.