Dorman M630544 Brake Master Cylinder

Reliable Brake Master Cylinder for Honda Civic

The Dorman M630544 brake master cylinder is engineered to restore proper brake hydraulics in your Honda Civic. 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
• Two outlets with rearward outlet size M10 x 1.0 and secondary outlet thread diameter 10 mm
• Thread pitch of 1.0 for secure fitting

Product Details and Specifications

The Dorman M630544 brake master cylinder is specifically designed for Honda Civic models, providing a direct replacement for the original part. Its aluminum construction offers strength and longevity while resisting corrosion from brake fluid exposure. The included reservoir allows for proper fluid containment, and the integrated sensor supports brake system diagnostics. With two outlets and precise thread dimensions, this master cylinder ensures compatibility with the vehicle’s brake hydraulics system. Note that mounting hardware is not included.

Common Applications and Problem Resolution

• Restores brake pressure and pedal feel in Honda Civic brake systems
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses brake warning light issues related to sensor failure
• Fixes inconsistent braking performance due to worn internal components
• Supports brake system maintenance and safety compliance

Installation Notes and Tips

When installing the Dorman M630544 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 for accurate brake system monitoring. Use appropriate tools for the M10 x 1.0 threaded outlets and follow vehicle-specific service manual instructions for torque specifications. Since mounting hardware is not included, retain original fasteners or acquire suitable replacements.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system operation. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation for exact warranty terms.