Dorman M630468 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Frontier and Xterra

The Dorman M630468 Brake Master Cylinder is engineered to restore proper brake hydraulics for Nissan Frontier and 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 and sensor for complete brake system integration
• Features four outlets with M12 x 1.0 thread pitch for secure connections
• Rearward and secondary outlet thread diameter both M12 x 1.0
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M630468 brake master cylinder is specifically designed for Nissan Frontier and Xterra vehicles, providing a direct replacement for the original equipment part. Its 1-inch bore diameter allows for precise brake fluid control, while the aluminum construction offers enhanced durability and resistance to wear and corrosion. The included reservoir and sensor ensure the brake system functions correctly by monitoring fluid levels and pressure. With four outlets threaded at M12 x 1.0, this master cylinder supports multiple brake lines, maintaining proper hydraulic distribution throughout the braking system.

Applications and Common Issues Addressed

• Restores brake fluid pressure in Nissan Frontier and Xterra brake systems
• Replaces leaking or damaged master cylinders causing brake failure
• Solves issues related to inconsistent brake pedal feel or sponginess
• Addresses sensor malfunctions affecting brake warning lights
• Corrects fluid reservoir leaks or contamination problems

Installation Notes and Tips

Installation of the Dorman M630468 brake master cylinder requires basic mechanical skills and proper brake system knowledge. Since mounting hardware is not included, retain original fasteners or source compatible replacements. Ensure all brake lines are securely connected to the M12 x 1.0 threaded outlets and bleed the brake system thoroughly to remove air after installation. Verify sensor connections to maintain accurate brake fluid monitoring.

Quality Assurance and Warranty

Dorman manufactures the M630468 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product quality.