MPA Electrical B1138 Power Brake Booster

Reliable Power Brake Booster Replacement for Ford, Lincoln, and Mazda

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B1138) offers a dependable vacuum power brake booster solution for select Ford, Lincoln, and Mazda vehicles. Designed as a standard replacement, this remanufactured booster helps restore proper brake pedal feel and assist performance.

Key Features of MPA Electrical B1138 Power Brake Booster

• Remanufactured vacuum power brake booster for reliable brake assist
• Compatible with Ford Edge, Lincoln MKX, and Mazda CX-9 models
• Standard replacement grade for consistent performance
• Includes brake pedal rod extension for proper fitment
• Metal housing construction for durability
• Diaphragm diameter of 11.28 inches (286.51 mm) for effective vacuum operation
• Two mounting studs with 8 x 1.25 mm master cylinder stud thread size
• Does not include master cylinder, gasket, front seal, or mounting bracket

Detailed Description of the Reman Vac Pwr Brake Booster w/o Master Cyl

This MPA Electrical power brake booster (Part Number B1138) is a remanufactured unit designed to meet standard brake service requirements. It operates using vacuum assistance to reduce pedal effort and improve braking response. The booster features a robust metal housing and a diaphragm measuring 11.28 inches in diameter, ensuring consistent vacuum pressure for effective brake assist. The included brake pedal rod extension facilitates proper connection to the brake pedal assembly. This unit is specifically engineered for compatibility with Ford Edge, Lincoln MKX, and Mazda CX-9 models, providing a direct replacement option without the master cylinder.

The Reman Vac Pwr Brake Booster w/o Master Cyl product line focuses on remanufactured vacuum boosters that deliver reliable performance while excluding the master cylinder. This allows for flexibility in brake system repairs where the master cylinder remains in good condition or is replaced separately.

Common Brake Issues Addressed by This Power Brake Booster

• Reduced brake pedal assist causing increased pedal effort
• Spongy or hard brake pedal feel due to booster failure
• Vacuum leaks affecting brake booster performance
• Brake pedal rod misalignment or improper extension length
• Wear or damage to the original power brake booster housing or diaphragm

Installation Notes and Tips

• Ensure compatibility with your vehicle’s make and model: Ford Edge, Lincoln MKX, or Mazda CX-9
• Verify that the master cylinder is not included and plan for separate installation if needed
• Check the brake pedal rod extension for proper fit and alignment during installation
• Inspect vacuum lines and connections for leaks to maintain booster performance
• Follow manufacturer torque specifications for mounting studs (8 x 1.25 mm thread size)

Quality Assurance and Warranty Information

The MPA Electrical B1138 power brake booster is a remanufactured product meeting standard brake service grade requirements. It undergoes thorough inspection and testing to ensure reliable vacuum assist functionality. While specific warranty details are not provided, remanufactured parts typically come with limited warranties covering defects in workmanship and materials. Confirm warranty terms with your parts provider prior to installation.