MPA Electrical B4225 Power Brake Booster

Overview

The MPA Electrical B4225 is a remanufactured vacuum power brake booster built for drivers who need consistent braking assist and reduced pedal effort. It is a standard replacement booster with a metal housing and 10.66-inch diaphragm diameter, and it is supplied without a master cylinder.

Fits 2014-2016 Kia Soul, N/A. This B4225 application is a direct fit for the listed vehicle coverage and is engineered for reliable vacuum sealing and pressure transfer.

Key Features

• Vacuum booster design for brake assist with lower pedal effort
• Remanufactured standard replacement construction
• Metal housing for durable service use
• 10.66-inch diaphragm diameter for consistent assist output
• 8 x 1.25 mm master cylinder stud thread size
• MPA Electrical B4225 part number for application matching

Detailed Description

MPA Electrical B4225 is a remanufactured power brake booster engineered to restore braking assist performance in the Kia Soul. The vacuum booster design, metal housing, and tested replacement components are intended to support maximum vacuum seal and dependable pressure transfer. The unit is supplied without a master cylinder, brake pedal rod extension, gasket, seal, or mounting bracket, so existing vehicle-specific components can be retained where applicable. The B4225 part number is also referenced by 59110B2000 and 59110B2880 for the same application.

For Kia Soul brake booster replacement needs, this unit provides a fitment-specific solution for 2014-2016 models. The B4225 is built and tested as a remanufactured brake booster for drivers seeking restored pedal feel and braking assist performance.

What It Helps Fix

• Hard brake pedal feel
• Reduced braking assist
• Vacuum seal loss in the booster assembly
• Poor pressure transfer through the brake assist system
• Brake booster wear or failure

Installation Notes

Verify the master cylinder stud thread size, mounting stud count, and booster style before installation. This unit does not include a master cylinder, brake pedal rod extension, gasket, seal, or mounting bracket. Confirm the vehicle application and compare the original booster configuration before beginning service.

Quality Assurance

MPA Electrical subjects each unit to end-of-line testing with proprietary equipment to confirm performance before release. The remanufactured construction and tested components are used to support consistent braking assist and reliable operation.