Dorman M630218 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda Protege

The Dorman M630218 brake master cylinder is engineered to restore proper brake hydraulics for Mazda Protege models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 0.875 inches for accurate hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for fluid storage and sensor for monitoring brake system status
• Features three outlets with a secondary outlet thread diameter of 10 mm and rearward outlet size M10 x 1.0
• Thread pitch of 1.0 ensures secure fitting in brake hydraulic systems

Product Details and Specifications

This Dorman brake master cylinder (part number M630218) is specifically designed for Mazda Protege vehicles, providing a direct replacement for the original component. The aluminum construction offers strength and longevity while resisting corrosion from brake fluid exposure. The included reservoir allows for proper brake fluid containment, and the integrated sensor supports brake system diagnostics. With three outlets, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0, this master cylinder fits precisely within the brake hydraulic system. The bore diameter of 0.875 inches is calibrated to maintain optimal hydraulic pressure for effective braking.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from cracked or corroded master cylinder bodies
• Resolves brake warning light issues related to faulty brake fluid sensors
• Improves brake pedal feel and responsiveness in Mazda Protege models
• Replaces master cylinders with damaged or malfunctioning outlets or threads

Installation Notes and Tips

When installing the Dorman M630218 brake master cylinder on a Mazda Protege, 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 for accurate brake system monitoring. Use appropriate tools to secure the M10 x 1.0 threaded outlets and confirm all fittings are tight to prevent leaks. Professional installation is recommended to maintain brake system integrity and safety.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for Mazda Protege vehicles. The aluminum construction and integrated sensor are tested for durability and performance under typical operating conditions. While specific warranty details are not provided, Dorman products generally come with a limited warranty covering defects in materials and workmanship.