OE Quality
60-Day Returns

Dorman M630601 Brake Master Cylinder
Overview of Dorman Brake Master Cylinder for Nissan Altima
The Dorman M630601 brake master cylinder is designed specifically for Nissan Altima models, providing reliable brake hydraulics performance. This aluminum master cylinder includes a reservoir and sensor, engineered to meet the precise specifications required for effective braking.
- Compatible with Nissan Altima vehicles
- Master cylinder bore diameter of 0.938 inches
- Constructed from durable aluminum material
- Includes reservoir and sensor for integrated functionality
- Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
- Secondary outlet thread diameter of 10 mm
- Mounting hardware not included
Detailed Product Description
The Dorman M630601 brake master cylinder is crafted from aluminum to ensure strength and corrosion resistance, essential for maintaining brake system integrity. The 0.938-inch bore diameter is calibrated to provide consistent hydraulic pressure, supporting safe and responsive braking. This unit comes with an integrated reservoir and sensor, allowing for seamless monitoring of brake fluid levels and system status. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this master cylinder is engineered to fit the brake hydraulics system of Nissan Altima models precisely. Note that mounting hardware is not included, so ensure compatibility with existing components during installation.
Common Applications and Problem Resolution
- Replaces worn or leaking brake master cylinders in Nissan Altima vehicles
- Addresses issues with inconsistent brake pedal feel or pressure
- Resolves brake fluid leaks from the master cylinder reservoir or outlets
- Restores proper brake fluid level monitoring with included sensor
- Improves overall brake system reliability and safety
Installation Notes and Tips
- Verify compatibility with your specific Nissan Altima model year before installation
- Bleed the brake system thoroughly after installation to remove air pockets
- Use appropriate brake fluid as specified by the vehicle manufacturer
- Inspect existing brake lines and fittings for wear or damage during replacement
- Ensure all connections, especially the M10 x 1.0 threaded outlets, are securely tightened
Quality Assurance and Warranty
Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term durability and reliable performance. While mounting hardware is not included, the product is backed by Dorman's quality control processes. Please refer to Dorman's official warranty policy for specific coverage details.
| Brand | Dorman |
|---|---|
| Part Number | M630601 |
| Master Cylinder Bore Diameter | 0.938 |
| Master Cylinder Material | Aluminum |
| Mounting Hardware Included | No |
| Number of Outlets | 2 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | M10 X 1.0 |
| Reservoir Included | Yes |
| Secondary Outlet Thread Diameter | 10 |
| Sensor Included | Yes |
| Thread Pitch | 1.0 |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2009 | Nissan | Altima | S | Automatic CVT | 2.5L | L4 | N/A | |
| 2009 | Nissan | Altima | SL | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2009 | Nissan | Altima | Base | Automatic CVT | 2.5L | L4 | N/A | |
| 2009 | Nissan | Altima | Coupe | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2009 | Nissan | Altima | SE | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2008 | Nissan | Altima | S | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2008 | Nissan | Altima | S | Automatic CVT | 2.5L | L4 | N/A | |
| 2008 | Nissan | Altima | SL | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2008 | Nissan | Altima | SL | Automatic CVT | 2.5L | L4 | N/A | |
| 2008 | Nissan | Altima | Coupe | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2008 | Nissan | Altima | SE | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2007 | Nissan | Altima | S | Automatic CVT | 2.5L | L4 | N/A | |
| 2007 | Nissan | Altima | SL | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
| 2007 | Nissan | Altima | SL | Automatic CVT | 2.5L | L4 | N/A | |
| 2007 | Nissan | Altima | Base | Automatic CVT | 2.5L | L4 | N/A | |
| 2007 | Nissan | Altima | SE | Automatic CVT | 3.5L | V6 | N/A | For vehicles without Vehicle Dynamic Control. |
* 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.