/live/media/DB/DB_M630050_Fro.jpg)
OE Quality
60-Day Returns
Dorman M630050 Brake Master Cylinder
Reliable Brake Master Cylinder for Audi and Volkswagen Models
The Dorman M630050 brake master cylinder is engineered to restore proper brake hydraulics in select Audi and Volkswagen vehicles. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.
- Master cylinder bore diameter: 24 mm for accurate hydraulic control
- Constructed from durable aluminum material for corrosion resistance
- Includes two outlets with M12 x 1.0 thread size for secure brake line connections
- Does not include reservoir or mounting hardware, allowing compatibility with existing components
- Package contains the master cylinder only, part number M630050
Product Details and Specifications
This Dorman brake master cylinder features a 24 mm bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system. The aluminum construction offers a balance of strength and corrosion resistance, suitable for the brake hydraulics in Audi Beetle, Bora, Golf, Jetta, TT, and TT Quattro models. The unit includes two outlets, both with M12 x 1.0 thread pitch, ensuring compatibility with factory brake lines. Note that this part does not come with a reservoir or mounting hardware, so it is intended for replacement where those components remain serviceable.
Compatible Vehicles and Applications
This brake master cylinder is compatible with the following vehicles:
- Audi Beetle
- Volkswagen Bora
- Volkswagen Golf
- Volkswagen Jetta
- Volkswagen TT and TT Quattro
Use part number M630050 when searching for a replacement brake master cylinder for these specific models to ensure proper fit and function.
Common Issues Addressed by This Brake Master Cylinder
- Spongy or unresponsive brake pedal
- Brake fluid leaks from the master cylinder
- Reduced braking efficiency or uneven brake pressure
- Brake warning light activation due to hydraulic failure
- Contaminated or damaged master cylinder bore
Installation Notes and Tips
Installation of the Dorman M630050 brake master cylinder requires removal of the old unit and proper bleeding of the brake system to remove air. Since mounting hardware and reservoir are not included, verify the condition of existing components before installation. Use appropriate tools to avoid damaging the M12 x 1.0 threaded outlets during brake line reconnection. Follow manufacturer torque specifications and safety procedures when servicing brake hydraulics.
Quality Assurance and Warranty
Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. While mounting hardware and reservoir are not included, the master cylinder itself is tested for durability and performance. Please consult Dorman’s warranty policy for coverage details related to part number M630050.
| Brand | Dorman |
|---|---|
| Part Number | M630050 |
| Master Cylinder Bore Diameter | 24 |
| Master Cylinder Material | Aluminum |
| Mounting Hardware Included | No |
| Number of Outlets | 2 |
| Package Contents | Master Cylinder |
| Rearward Outlet Size | M12 X 1.0 |
| Reservoir Included | No |
| Secondary Outlet Thread Diameter | M12 X 1.0 |
| Sensor Included | No |
| Thread Pitch | 1.0 |
This part fits 46 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2006 | Volkswagen | Golf | GTI 1.8T | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2006 | Volkswagen | Golf | GLS TDI | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2006 | Volkswagen | Golf | GL | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2006 | Volkswagen | Golf | GLS | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2006 | Volkswagen | Jetta | N/A | Bore: 3/4 In.; wo/Reservoir; wo/Electronic Stabilisation Program | ||||
| 2005 | Volkswagen | Beetle | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2005 | Volkswagen | Bora | 2.5L | L5 | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||
| 2005 | Volkswagen | Golf | GTI 1.8T | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2005 | Volkswagen | Golf | GL | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2005 | Volkswagen | Golf | GLS | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2005 | Volkswagen | Golf | GTI VR6 | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2005 | Volkswagen | Golf | TDI | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2005 | Volkswagen | Jetta | N/A | Bore: 3/4 In.; wo/Reservoir; wo/Electronic Stabilisation Program | ||||
| 2004 | Volkswagen | Beetle | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2004 | Volkswagen | Golf | GTI 1.8T | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Golf | GL TDI | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Golf | GLS TDI | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Golf | GL | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Golf | GLS | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Golf | GTI VR6 | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | |||
| 2004 | Volkswagen | Jetta | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2003 | Volkswagen | Beetle | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2003 | Volkswagen | Golf | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2003 | Volkswagen | Jetta | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2002 | Audi | TT | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2002 | Audi | TT Quattro | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2002 | Volkswagen | Beetle | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2002 | Volkswagen | Golf | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2002 | Volkswagen | Jetta | Sedan | N/A | Bore: 3/4 In.; wo/Reservoir | |||
| 2001 | Audi | TT | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2001 | Audi | TT Quattro | N/A | For vehicles without Electronic Stability Control, with a 3/4 inch bore and no reservoir. | ||||
| 2001 | Volkswagen | Beetle | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2001 | Volkswagen | Golf | N/A | Without Electronic Stability Package and without Reservoir | ||||
| 2001 | Volkswagen | Jetta | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2000 | Audi | TT | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2000 | Audi | TT Quattro | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2000 | Volkswagen | Beetle | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 2000 | Volkswagen | Golf | N/A | Without Electronic Stability Package and without Reservoir | ||||
| 2000 | Volkswagen | Jetta | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 1999 | Volkswagen | Beetle | N/A | Bore: 3/4 In.; wo/Reservoir | ||||
| 1999 | Volkswagen | Golf | 2.8L | V6 | N/A | From 12/98 with a 3/4 inch bore and no reservoir. | ||
| 1999 | Volkswagen | Golf | 2.0L | L4 | N/A | From 12/98 with a 3/4 inch bore and no reservoir. | ||
| 1999 | Volkswagen | Jetta | 2.8L | V6 | N/A | From 12/98 with a 3/4 inch bore and no reservoir. | ||
| 1999 | Volkswagen | Jetta | 2.0L | L4 | N/A | From 12/98 with a 3/4 inch bore and no reservoir. | ||
| 1999 | Volkswagen | Jetta | 1.9L | L4 | N/A | From 12/98 with a 3/4 inch bore and no reservoir. | ||
| 1998 | Volkswagen | Beetle | N/A | Bore: 3/4 In.; wo/Reservoir |
* 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.