Dorman M9220 Brake Master Cylinder

Reliable Brake Master Cylinder Replacement for Your Vehicle

The Dorman M9220 brake master cylinder is designed to restore proper brake hydraulics performance in compatible vehicles. Engineered with a durable cast iron construction and a 1.25-inch bore diameter, this master cylinder ensures consistent braking pressure and fluid control.

• Cast iron master cylinder material for durability
• Includes reservoir for brake fluid storage
• 1.25-inch bore diameter for precise hydraulic pressure
• Single outlet design with 7/16-24 rearward outlet size
• Mounting hardware not included

Product Details and Specifications

The Dorman M9220 brake master cylinder features a cast iron body that provides strength and resistance to wear under demanding braking conditions. The included reservoir allows for proper brake fluid containment and monitoring. With a 1.25-inch bore diameter, this master cylinder is engineered to deliver consistent hydraulic pressure to the braking system. The single outlet with a 7/16-24 rearward outlet size is designed to connect seamlessly with compatible brake lines. Note that mounting hardware is not included, so ensure you have the necessary components for installation.

Compatible Vehicles and Applications

This brake master cylinder is suitable for replacement in various vehicle makes and models requiring a 1.25-inch bore diameter master cylinder with a single outlet and rearward 7/16-24 fitting. Commonly used in brake hydraulic systems of trucks and passenger vehicles, the Dorman M9220 is a reliable option for restoring brake function in vehicles such as Ford F-150, Chevrolet Silverado, and Dodge Ram models that specify these dimensions. Always verify fitment with your vehicle's specifications before purchase.

Common Brake Issues Addressed

• Spongy or unresponsive brake pedal
• Brake fluid leaks from the master cylinder
• Reduced braking efficiency or uneven brake pressure
• Brake warning light activation due to hydraulic failure
• Contaminated or damaged brake fluid reservoir

Installation Notes and Tips

When installing the Dorman M9220 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Since mounting hardware is not included, use original or compatible fasteners to secure the unit. Inspect brake lines and fittings for wear or damage during installation. Proper torque specifications should be followed to avoid leaks or component damage.

Quality Assurance and Warranty Information

Dorman manufactures the M9220 brake master cylinder to meet or exceed OEM standards for fit and function. The cast iron construction and included reservoir contribute to long service life under normal operating conditions. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation for exact warranty terms.