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Dorman M630301 Brake Master Cylinder
Reliable Brake Master Cylinder for Toyota Prius
The Dorman M630301 brake master cylinder is engineered to restore proper brake hydraulics in your Toyota Prius. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.
- Master cylinder bore diameter: 0.75 inches for accurate fluid displacement
- Constructed from durable aluminum material for corrosion resistance
- Includes two outlets with a rearward outlet size of M10 x 1.0 and thread pitch of 1.0
- Secondary outlet thread diameter measures 10 mm
- Package contains the master cylinder only; reservoir and sensor are not included
Product Details and Specifications
The Dorman M630301 brake master cylinder is specifically designed for Toyota Prius models, providing a direct replacement for the original component. Its aluminum construction offers enhanced durability and resistance to wear compared to traditional materials. The 0.75-inch bore diameter ensures proper hydraulic pressure is maintained within the brake system. Featuring two outlets, including a rearward outlet with M10 x 1.0 thread size and a secondary outlet thread diameter of 10 mm, this master cylinder integrates seamlessly with the existing brake lines. Note that this part does not include a reservoir or sensor, so those components must be sourced separately if needed.
Common Applications and Problem Resolution
- Restores brake fluid pressure in Toyota Prius brake systems
- Addresses issues with spongy or unresponsive brake pedals
- Replaces leaking or damaged master cylinders causing brake fluid loss
- Eliminates inconsistent braking performance due to worn internal components
- Prevents brake system failure related to master cylinder malfunction
Installation Notes and Tips
When installing the Dorman M630301 brake master cylinder on your Toyota Prius, ensure the brake fluid reservoir and sensors are compatible and properly connected, as these are not included with the part. Bleed the brake system thoroughly after installation to remove air and restore optimal hydraulic pressure. Verify thread sizes and outlet connections match your vehicle’s specifications to avoid leaks or improper fitment.
Quality Assurance and Warranty
Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides long-lasting durability under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics products to cover defects in materials and workmanship.
| Brand | Dorman |
| Part Number | M630301 |
| Mounting Hardware Included | No |
| Master Cylinder Bore Diameter | 0.75 |
| Master Cylinder Material | Aluminum |
| Reservoir Included | No |
| Secondary Outlet Thread Diameter | 10 |
| Sensor Included | No |
| Number of Outlets | 2 |
| Package Contents | Master cylinder |
| Rearward Outlet Size | M10 x 1.0 |
| Thread Pitch | 1.0 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
| 2008 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
| 2007 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
| 2006 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
| 2005 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
| 2004 | Toyota | Prius | N/A | Fits vehicles with a 3/4 inch bore size. |
* 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.