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MPA Electrical B4233 Power Brake Booster
| Brand | MPA Electrical B4233 |
|---|---|
| Brake Service Grade | Standard replacement |
| Booster Type | Vacuum |
| Brake Pedal Rod Extension Included | Yes |
| Master Cylinder Included | No |
| Gasket Or Seal Included | No |
| Housing Material | Metal |
| Diaphragm Diameter | 248.41 |
| Diaphragm Diameter | 9.78 |
| Mounting Bracket Included | No |
| Front Seal Included | No |
| Master Cylinder Stud Thread Size (mm) | 8 x 1.25 |
| Mounting Stud Quantity | 4 |
| Product Condition | Remanufactured |
| Product line | Reman Vac Pwr Brake Booster w/o Master Cyl |
| Fits | Mazda · 12 vehicles |
Remanufactured unit. Standard replacement brake booster for restoring pedal assist.
Vacuum booster design. Delivers braking assist with reduced pedal effort.
End-of-line tested. Each unit is verified with proprietary testing equipment.
Cross-references KAYG-43-80Z and KDY3-43-80Z for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
MPA Electrical B4233 is a remanufactured vacuum power brake booster built for standard replacement service. It is engineered to deliver strong braking assist with reduced pedal effort, and it is tested at the end of production to verify performance. Compatible with Mazda CX-5 applications, this booster is supplied without a master cylinder.
Key Features
- Vacuum booster design for consistent brake assist
- Remanufactured standard replacement unit
- Metal housing construction
- Brake pedal rod extension included
- 8 x 1.25 mm master cylinder stud thread size
- 100% end-of-line tested for quality verification
Detailed Description
The MPA Electrical B4233 power brake booster is intended for drivers who need restored brake assist and predictable pedal response. Its vacuum design, metal housing, and treated replacement components are used to support maximum vacuum sealing and reliable pressure transfer. This part cross-references Monroe Shocks & Struts (e.g., KAYG-43-80Z, KDY3-43-80Z) for the same application. Fits 2013-2024 Mazda CX-5, N/A. The B4233 is a practical choice for a Mazda CX-5 brake system repair when the original booster no longer maintains proper assist.
What It Is Used For
- Restoring brake pedal assist when the booster loses vacuum integrity
- Addressing a hard brake pedal condition
- Correcting inconsistent or weak braking response
- Replacing a worn remanufactured booster assembly
Installation Notes and Tips
Verify master cylinder compatibility before installation, since this booster is supplied without a master cylinder. Confirm the 8 x 1.25 mm stud thread size and the vehicle-specific mounting layout before assembly. Use the included brake pedal rod extension as required by the application, and inspect related vacuum and brake system components during service.
Quality Assurance
MPA Electrical subjects each unit to 100% end-of-line testing using proprietary equipment. The B4233 is remanufactured and built to meet standard replacement requirements for brake booster service.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2024 | Mazda | CX-5 | — | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2023 | Mazda | CX-5 | — | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2022 | Mazda | CX-5 | — | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2021 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2020 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2019 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2018 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2017 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2016 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2015 | Mazda | CX-5 | i | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2014 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
| 2013 | Mazda | CX-5 | Touring | Reman Vac Pwr Brake Booster w/o Master Cyl |
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