Dorman M630872 Brake Master Cylinder

Reliable Brake Master Cylinder for Mercedes-Benz Vehicles

The Dorman M630872 brake master cylinder is engineered to meet the hydraulic braking needs of select Mercedes-Benz models. Designed with durable cast iron construction, this master cylinder ensures consistent brake fluid pressure for safe and effective stopping power.

• Master cylinder bore diameter: 1 inch
• Constructed from cast iron for strength and durability
• Includes two outlets with M12 x 1.0 thread size
• Removable reservoir type (reservoir not included)
• Compatible with multiple Mercedes-Benz models including CLS63 AMG, E55 AMG, and G550

Durable Construction and Precise Specifications

The Dorman M630872 brake master cylinder features a 1-inch bore diameter crafted from cast iron, providing a robust and long-lasting component for your vehicle's brake hydraulics. It includes two outlets, both with M12 x 1.0 thread pitch, designed to connect seamlessly with your vehicle's brake lines. The removable reservoir design allows for easy maintenance, although the reservoir itself is not included. This master cylinder is engineered specifically for Mercedes-Benz models such as the CLS63 AMG, CLS500, E350, E63 AMG, and G550, ensuring proper fitment and reliable performance.

Compatible Mercedes-Benz Models and Applications

• Mercedes-Benz CLS63 AMG and CLS63 AMG S
• Mercedes-Benz CLS500 and CLS550
• Mercedes-Benz E55 AMG, E63 AMG, E320, E350, E500, and E550
• Mercedes-Benz G55 AMG and G550

Common Brake System Issues Addressed

• Loss of brake pedal pressure or spongy brake feel
• Brake fluid leaks from the master cylinder area
• Inconsistent braking performance or delayed brake response
• Brake warning light activation related to hydraulic failure
• Master cylinder bore wear causing internal fluid bypass

Installation Notes and Tips

When installing the Dorman M630872 brake master cylinder, ensure the brake fluid reservoir is compatible and properly connected, as this part does not include the reservoir. Bleed the brake system thoroughly after installation to remove air and restore optimal brake function. Verify that the M12 x 1.0 threaded outlets are securely connected to the brake lines to prevent leaks. Professional installation is recommended to maintain safety and performance standards.

Quality Assurance and Warranty

Dorman manufactures the M630872 brake master cylinder to meet or exceed OEM specifications for Mercedes-Benz vehicles. The cast iron construction provides durability under demanding conditions. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.