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OE Quality
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MPA Electrical NM55433 Brake Master Cylinder
Brake Master Cylinder for Mazda RX-8
Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55433. It is a standard replacement for the 2005-2011 Mazda RX-8 with front disc brakes and is built with an aluminum body, plastic reservoir, and a 0.875-inch bore for direct hydraulic performance.
Key Features
- Fits 2005-2011 Mazda RX-8, front disc brakes
- Standard replacement brake master cylinder
- Aluminum master cylinder construction
- Plastic reservoir with cap included
- 0.875-inch bore diameter
- Uses DOT 3 brake fluid
- Two mounting holes with 0.343-inch diameter
- New condition
Product Details
MPA Electrical NM55433 is engineered as a brake master cylinder replacement for vehicles that need renewed hydraulic pressure and pedal feel. The aluminum master cylinder body and integrated reservoir are matched to OE-style specifications using tested manufacturing processes, helping deliver consistent braking performance after installation. This part cross-references FE064340ZB and FE064340ZC for the same application.
For Mazda RX-8 owners searching for a brake master cylinder for 2005-2011 Mazda RX-8 front disc brakes, NM55433 provides the core hydraulic component that transfers pedal force into brake pressure. The included reservoir and cap simplify replacement of the worn master cylinder assembly while maintaining the correct DOT 3 fluid setup.
Common Issues This Part May Address
- Low or inconsistent brake pedal feel
- Internal master cylinder leakage
- Brake fluid loss at the hydraulic unit
- Reduced braking response from worn seals or bore wear
- Brake warning symptoms tied to master cylinder failure
Installation Notes and Tips
Verify fitment against the vehicle’s brake configuration before installation. Bench bleeding the master cylinder before mounting helps remove trapped air and supports proper pedal feel. Inspect brake lines, fluid condition, and the booster interface during replacement, and use only DOT 3 brake fluid as specified.
Quality Assurance
MPA Electrical states that its brake master cylinders are tested against OE specifications using proprietary processes and strict protocols to help ensure consistent braking performance out of the box. Part number NM55433 is a new standard replacement component for the Mazda RX-8 application listed above.
| Brand | MPA Electrical |
|---|---|
| Part Number | NM55433 |
| Position | New with front disc brakes |
| Reservoir Material | Plastic |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | No |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 0.875 |
| Brake Booster Included | No |
| Master Cylinder Cap Included | Yes |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | Yes |
| Sensor Included | No |
| Mounting Hole Diameter | 0.343 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Fluid Type | Dot 3 |
| Product Condition | New |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2011 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2010 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2009 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2008 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2007 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2006 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
| 2005 | Mazda | RX-8 | Manual | N/A | New with front disc brakes |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.