Dorman M630103 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Xterra

The Dorman M630103 brake master cylinder is engineered to restore proper brake hydraulics for Nissan Xterra models. Designed with precision, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Master cylinder bore diameter: 1 inch for optimal fluid displacement
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with sensor for brake system monitoring
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Secondary outlet thread diameter of 10 mm
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Features and Specifications

The Dorman M630103 brake master cylinder is specifically designed for Nissan Xterra vehicles, providing a precise fit and reliable performance. Its 1-inch bore diameter allows for effective brake fluid displacement, ensuring consistent hydraulic pressure. The aluminum construction offers durability and resistance to corrosion, extending the service life of the component. This master cylinder includes a reservoir to hold brake fluid and a sensor to monitor brake system status, enhancing safety and functionality. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, it supports proper brake line connections. The secondary outlet thread diameter is 10 mm, accommodating the necessary brake line fittings. Note that mounting hardware is not included, so existing hardware or separate purchase may be required.

Compatible Nissan Xterra Brake System Applications

• Restores brake fluid pressure for Nissan Xterra brake hydraulics
• Replaces worn or leaking master cylinders causing brake pedal issues
• Addresses brake fluid reservoir leaks or sensor malfunctions
• Solves inconsistent brake pedal feel or reduced braking efficiency
• Supports brake system maintenance and safety compliance

Installation Notes and Tips

When installing the Dorman M630103 brake master cylinder on a Nissan Xterra, ensure the brake system is properly bled to remove air pockets. Verify compatibility with your vehicle’s brake lines, especially the M10 x 1.0 rearward outlet and secondary outlet thread sizes. Since mounting hardware is not included, retain original hardware or acquire appropriate replacements. Follow manufacturer torque specifications for secure installation and test brake pedal response before driving.

Quality Assurance and Warranty Information

Dorman manufactures the M630103 brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. This part is backed by Dorman’s quality assurance processes, providing confidence in durability and safety. Please refer to Dorman’s warranty policy for specific coverage details.