Dorman M630049 Brake Master Cylinder

Overview of the Dorman Brake Master Cylinder M630049

The Dorman Brake Master Cylinder M630049 is designed specifically for Volkswagen Golf and Jetta models. Engineered with precision, this aluminum master cylinder ensures reliable brake hydraulics performance for your vehicle.

• Master cylinder bore diameter: 22 mm
• Constructed from durable aluminum material
• Includes two outlets with a rearward outlet size of M10 x 1.0
• Secondary outlet thread diameter: 10 mm with a 1.0 thread pitch
• Package contains the master cylinder only; mounting hardware and reservoir are not included
• No sensor included

Detailed Product Description

The Dorman M630049 brake master cylinder is crafted from aluminum, providing a lightweight yet sturdy component essential for the brake hydraulics system in Volkswagen Golf and Jetta vehicles. With a 22 mm bore diameter, it is designed to deliver consistent hydraulic pressure to the brake system. The unit features two outlets, including a rearward outlet sized M10 x 1.0, and a secondary outlet with a 10 mm thread diameter and 1.0 thread pitch, ensuring compatibility with the brake lines of the specified Volkswagen models. This master cylinder does not include a reservoir or mounting hardware, so these components must be sourced separately if needed.

Compatible Vehicles and Applications

• Volkswagen Golf models requiring a 22 mm bore master cylinder
• Volkswagen Jetta models compatible with M630049 part specifications
• Replacement for original brake master cylinders with matching outlet sizes and thread pitch

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal seal wear
• Brake fluid leaks from a failing master cylinder
• Reduced braking efficiency caused by hydraulic pressure loss
• Brake warning light activation related to master cylinder malfunction
• Inconsistent brake pedal feel or travel distance

Installation Notes and Tips

• Ensure compatibility with your Volkswagen Golf or Jetta by verifying bore diameter and outlet thread sizes
• Brake fluid reservoir and mounting hardware are not included; prepare to reuse existing parts or purchase separately
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function
• Follow manufacturer torque specifications for outlet fittings to prevent leaks

Quality Assurance and Warranty

Dorman manufactures the M630049 brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction offers corrosion resistance and durability under normal operating conditions. While specific warranty details should be confirmed at the point of purchase, Dorman typically provides limited warranties covering defects in material and workmanship.