Dorman M630274 Brake Master Cylinder

Reliable Brake Master Cylinder Replacement for Your Vehicle

The Dorman M630274 brake master cylinder is engineered to restore proper brake hydraulics performance in compatible vehicles. Designed with a durable cast iron construction and integrated sensor, this master cylinder ensures consistent braking response and safety.

• Master cylinder bore diameter: 2 inches for precise hydraulic pressure
• Constructed from cast iron for long-lasting durability
• Includes reservoir for fluid storage and management
• Equipped with a sensor to monitor brake system status
• Two outlets with secondary outlet thread diameter of 0.5 inches and rearward outlet size of 9/16-18

Durable Cast Iron Construction and Integrated Sensor

The Dorman M630274 brake master cylinder features a robust cast iron body designed to withstand the rigors of brake system pressure and heat. The 2-inch bore diameter provides the necessary hydraulic force to operate the brake calipers or wheel cylinders effectively. This master cylinder includes a reservoir to maintain brake fluid levels and an integrated sensor that communicates brake fluid status to the vehicle’s onboard system, helping to maintain optimal braking performance.

Compatible Vehicles and Fitment Details

This brake master cylinder is compatible with a range of vehicles requiring a 2-inch bore diameter and specific outlet thread sizes. It is suitable for models that utilize a 0.5-inch secondary outlet thread diameter and a rearward outlet size of 9/16-18. When searching for a replacement part, referencing the Dorman M630274 part number will help ensure proper fitment for your vehicle’s brake hydraulics system.

Common Brake System Issues Addressed

• Brake pedal feels spongy or sinks to the floor
• Brake fluid leaks from the master cylinder or reservoir
• Warning lights triggered by faulty brake fluid sensor
• Uneven braking or reduced stopping power
• Corrosion or wear in the master cylinder bore affecting brake pressure

Installation Notes and Tips

When installing the Dorman M630274 brake master cylinder, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air pockets and verify sensor connections are secure for accurate brake fluid monitoring. Use compatible brake lines matching the outlet thread sizes to avoid leaks or fitting issues.

Quality Assurance and Warranty Information

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications, providing reliable performance and durability. The M630274 part is backed by Dorman’s standard warranty coverage, ensuring confidence in your replacement brake hydraulics component.