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MPA Electrical NM55331 Brake Master Cylinder
Brake Master Cylinder for Toyota RAV4
Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55331. It is a standard replacement for the 2004-2005 Toyota RAV4 with front disc brakes and is built with an aluminum body, plastic reservoir, and DOT 3 fluid compatibility.
Key Features
- Fits 2004-2005 Toyota RAV4, front disc brakes
- MPA Electrical NM55331 brake master cylinder
- Aluminum master cylinder construction with plastic reservoir
- 0.813 bore diameter for OE-style hydraulic performance
- Reservoir and cap included; gasket or seal included
- Standard replacement grade for brake hydraulic service
- Two mounting holes with 0.354 mounting hole diameter
- Uses DOT 3 brake fluid
Detailed Description
MPA Electrical NM55331 is a brake master cylinder engineered for direct hydraulic replacement on the 2004-2005 Toyota RAV4 with front disc brakes. The unit is tested against OE specifications using proprietary processes and strict protocols, helping deliver consistent brake pedal feel and fluid pressure after installation. The aluminum master cylinder body, plastic reservoir, and included cap support a clean, service-ready replacement for worn or leaking original components. This part cross-references Toyota OE numbers 4720142240 and 4720142241 for the same application.
The MPA Electrical NM55331 product line focuses on OE-style brake hydraulic restoration, making it a practical choice when the original master cylinder shows internal bypass, external leakage, or reduced pedal firmness. For Toyota RAV4 brake master cylinder replacement, this part provides the core hydraulic component needed to restore braking performance.
Common Issues This Part Can Address
- Low or sinking brake pedal
- Brake fluid leakage at the master cylinder
- Uneven or inconsistent pedal pressure
- Internal seal wear causing hydraulic bypass
- Loss of braking response in a 2004-2005 Toyota RAV4
Installation Notes and Tips
Verify vehicle fitment by year and brake configuration before installation. Bench bleed the master cylinder before connecting brake lines to reduce trapped air in the hydraulic system. Inspect the brake booster, lines, and reservoir connections for wear or contamination during service. Mounting hardware, push rod, brake booster, and brake pressure switch are not included.
Quality Assurance
MPA Electrical tests each unit against OE specifications using controlled procedures and sample-based validation from its OE reference library. That process supports consistent out-of-box performance for brake hydraulic replacement on the Toyota RAV4.
| Brand | MPA Electrical |
|---|---|
| Part Number | NM55331 |
| Position | New with front disc brakes |
| Reservoir Material | Plastic |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 0.813 |
| 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 | 0.354 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Fluid Type | Dot 3 |
| Product Condition | New |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Toyota | RAV4 | Automatic | N/A | New with front disc brakes |
| 2004 | Toyota | RAV4 | Automatic | 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.