Dorman - First Stop Brake Master Cylinder P/N:M630428
Replace a leaking or worn master cylinder with the Dorman First Stop Brake Master Cylinder M630833, a new unit that converts brake pedal force into hydraulic pressure for the brake system. It is listed for several models, among them the 1999-2006 Volkswagen Jetta, 1999-2006 Volkswagen Golf and 1998-2005 Volkswagen Beetle, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list.
The unit has a 0.938-inch bore diameter and two outlets. The secondary outlet thread is M12 x 1.0, and the primary outlet thread pitch is 1 mm. A reservoir and sensor are included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 13-2874 · 11-2874 · 130.33417 · 131.33417 · 355-74042
1J1614019 · R134868 · 132874 · 112874 · 13033417 · 13133417 · 35574042
This part cross-references / interchanges with the following part numbers:
Is this a direct-fit VW Beetle master cylinder?
Yes. It is listed as a direct-fit replacement for the 1998-2005 Volkswagen Beetle with all engines. See the Buyer's Guide tab for every listed application.
Will it work as a VW Jetta master cylinder or a Golf master cylinder?
It is listed for the 1999-2006 Volkswagen Jetta and the 1999-2006 Volkswagen Golf with all engines. The Buyer's Guide tab shows the full application list.
What comes in the box?
The package contains one new master cylinder, and a reservoir and sensor are included. Mounting hardware is not included, so check the vehicle service information for the correct fasteners.
What are the key specifications?
It has an aluminum housing, a 0.938-inch bore diameter and two outlets. The secondary outlet thread is M12 x 1.0, and the rubber components are EPDM for resistance to glycol-based brake fluid.
What are signs a master cylinder may need replacing?
A soft or sinking brake pedal, fluid leaking at the master cylinder or a dropping reservoir level can be signs. Diagnose the cause first, since other brake parts can cause the same symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.