Dorman M630079 Brake Master Cylinder

Reliable Brake Master Cylinder for Volkswagen Models

The Dorman M630079 brake master cylinder is engineered to provide consistent hydraulic pressure for your Volkswagen Cabrio, Golf, Jetta, and Passat. Designed with precision, this aluminum master cylinder ensures durability and efficient brake system performance.

• Master cylinder bore diameter: 0.938 inches for precise hydraulic control
• 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
• Does not include mounting hardware or reservoir, allowing compatibility with existing components
• Compatible with Volkswagen Cabrio, Golf, Jetta, and Passat models

Detailed Product Description

The Dorman M630079 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Its 0.938-inch bore diameter is designed to match OEM specifications, ensuring proper brake fluid displacement and pedal feel. Made from aluminum, this master cylinder offers resistance to rust and wear, extending the service life of your brake system. Featuring two outlets, including a secondary outlet with a 10mm thread diameter and a rearward outlet sized M10 x 1.0, it integrates seamlessly with the brake lines of Volkswagen Cabrio, Golf, Jetta, and Passat vehicles. Note that this part does not include a reservoir or mounting hardware, so it is intended for use with existing compatible components.

Common Applications and Issues Addressed

• Restores proper hydraulic pressure in brake systems experiencing pedal sponginess
• Replaces worn or leaking master cylinders causing brake fluid loss
• Solves inconsistent brake pedal travel or poor brake response
• Addresses internal seal failures leading to brake system failure
• Improves overall brake system reliability in Volkswagen Cabrio, Golf, Jetta, and Passat models

Installation Notes and Tips

• Ensure compatibility with your vehicle’s brake system before installation
• Bleed the brake system thoroughly after installation to remove air pockets
• Use appropriate brake fluid as specified by Volkswagen manufacturer guidelines
• Inspect related brake components such as reservoirs and mounting hardware for wear
• Professional installation is recommended for safety and optimal performance

Quality Assurance and Warranty

Dorman manufactures the M630079 brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction provides durability and corrosion resistance. While mounting hardware and reservoir are not included, the part is designed for direct replacement in compatible Volkswagen Cabrio, Golf, Jetta, and Passat models. Warranty coverage details should be confirmed at the point of purchase or with the manufacturer to ensure protection against defects.