MPA Electrical B3379 Power Brake Booster

Remanufactured Vacuum Brake Booster for RX-8

Restore consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for 2004-2011 Mazda RX-8 applications, Part Number B3379 is a standard replacement booster designed to reduce pedal effort and support reliable vacuum-assisted braking.

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement units that are cleaned, treated, and tested for dependable operation. This B3379 booster is supplied without a master cylinder and uses a metal housing with a gasket or seal included for service-ready installation.

Key Features

• Fits 2004-2011 Mazda RX-8, N/A
• Vacuum booster design for power brake assist
• Remanufactured standard replacement part
• Master cylinder not included
• Gasket or seal included
• Metal housing construction
• 8x1.25 mm master cylinder stud thread size
• 2 mounting studs

Detailed Description

MPA Electrical B3379 is a remanufactured vacuum power brake booster engineered for Mazda RX-8 brake service. It is built to deliver braking assist with reduced pedal effort, helping maintain a firm and responsive brake feel in daily driving conditions. The unit is tested at the end of production using proprietary equipment to verify performance before release. This part cross-references Monroe Shocks & Struts (e.g., FEY14380Z, FEY14380ZA) for the same application.

For buyers searching for a reman brake booster for 2004-2011 Mazda RX-8, a vacuum brake booster without master cylinder, or an MPA Electrical B3379 replacement booster, this unit matches the listed application and service configuration. The product line is focused on remanufactured brake boosters that are rebuilt with treated components to support vacuum sealing and pressure transfer.

What It Helps Address

• Hard brake pedal feel
• Reduced brake assist from a failing vacuum booster
• Inconsistent pedal response during braking
• Vacuum seal loss in the brake booster assembly
• Brake system service needs on Mazda RX-8 models

Installation Notes and Tips

Confirm the vehicle application before installation: Fits 2004-2011 Mazda RX-8, N/A. This booster does not include the master cylinder, brake pedal rod extension, front seal, or mounting bracket. Verify the 8x1.25 mm master cylinder stud thread size and 2-stud mounting layout against the original unit before assembly. Inspect the gasket or seal during installation and follow factory service procedures for brake system bleeding and vacuum line checks.

Quality Assurance

MPA Electrical subjects each unit to 100% end-of-line testing with proprietary test equipment to confirm function before shipment. The remanufacturing process uses new replacement and specially treated components to support vacuum sealing, pressure transfer, and consistent brake assist.