MPA Electrical B1705 Power Brake Booster

Overview

MPA Electrical B1705 is a remanufactured vacuum power brake booster for brake systems that require strong assist with low pedal effort. It is built as a standard replacement unit and is supplied without a master cylinder.

Key Features

• Vacuum booster design for consistent brake assist.
• Remanufactured metal housing for standard replacement service.
• 8x1.25 master cylinder stud thread size.
• Two mounting studs for secure installation.
• End-of-line tested for vacuum seal and pressure transfer.

Detailed Description

This MPA Electrical brake booster is engineered to deliver braking assist with reduced pedal effort while maintaining reliable vacuum sealing and pressure transfer. The remanufactured construction uses specially treated components and a metal housing to support dependable operation in everyday braking systems. Part number B1705 cross-references 68139853AA and 68139853AB for the same application. It is a direct-fit style replacement for Jeep Wrangler JK and Jeep Wrangler applications that use this vacuum booster configuration.

Common Issues It May Address

• Hard brake pedal feel.
• Reduced brake assist.
• Vacuum seal loss in the booster assembly.
• Pressure transfer problems in the brake assist system.
• Replacement needs for a worn booster assembly.

Installation Notes

Verify the booster type, master cylinder stud thread size, and mounting layout before installation. This unit does not include a master cylinder, brake pedal rod extension, gasket or seal, front seal, or mounting bracket. Confirm fitment for 2013-2017 Jeep Wrangler and 2018 Jeep Wrangler JK applications before ordering.

Quality Assurance

MPA Electrical subjects each unit to 100% end-of-line testing using proprietary test equipment to verify performance before release.