Dorman M630447 Brake Master Cylinder

Reliable Brake Master Cylinder Replacement

The Dorman M630447 brake master cylinder is engineered to restore proper brake hydraulics performance in compatible vehicles. Designed with a durable cast iron construction and precise bore diameter, this master cylinder ensures consistent brake fluid pressure for safe stopping power.

• Master cylinder bore diameter: 0.938 inches for accurate hydraulic control
• Constructed from cast iron for strength and durability
• Two outlet ports with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Does not include reservoir or mounting hardware
• Package contains the master cylinder only

Detailed Product Description

The Dorman M630447 brake master cylinder is designed to meet or exceed OEM specifications for brake hydraulics. Its cast iron material provides long-lasting resistance to wear and corrosion, essential for maintaining brake system integrity. The 0.938-inch bore diameter allows for precise fluid displacement, ensuring responsive brake pedal feel. Featuring two outlets with a secondary outlet thread diameter of 10 mm and a rearward outlet size of M10 x 1.0, this master cylinder is compatible with specific vehicle brake systems requiring these dimensions. Note that this unit does not include a reservoir or sensor, so it is intended for applications where these components are serviced separately.

Common Applications and Issues Addressed

• Restores brake pedal firmness and responsiveness in vehicles with worn master cylinders
• Eliminates brake fluid leaks caused by damaged or corroded master cylinder bores
• Resolves inconsistent brake pressure leading to uneven braking performance
• Addresses brake system failure symptoms such as spongy or sinking brake pedals
• Suitable for vehicles requiring a 0.938-inch bore diameter master cylinder with M10 x 1.0 outlet threads

Installation Notes and Tips

• Ensure compatibility with your vehicle’s brake system specifications before installation
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic pressure
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Inspect related brake components such as the reservoir and sensors, as this master cylinder does not include these parts

Quality Assurance and Warranty

Dorman manufactures the M630447 brake master cylinder to meet industry standards for durability and performance. While specific warranty details may vary, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or manufacturer website for exact warranty terms.