Dorman M630099 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Pathfinder and Infiniti QX4

The Dorman M630099 Brake Master Cylinder is engineered to restore proper brake hydraulics for Nissan Pathfinder and Infiniti QX4 models. Designed with precision, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

Key Features of the Dorman M630099 Brake Master Cylinder

• 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 a sensor to monitor brake system status
• 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 Description

The Dorman M630099 brake master cylinder is specifically designed for brake hydraulics systems in Nissan Pathfinder and Infiniti QX4 vehicles. Its 1-inch bore diameter allows for precise brake fluid pressure control, essential for safe and responsive braking. The aluminum construction provides strength and resistance to corrosion, extending the service life of the component. This master cylinder comes with an integrated reservoir to hold brake fluid and a sensor that helps monitor the brake system's condition, enhancing safety and maintenance awareness. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, it ensures compatibility with the brake lines of the specified vehicles. Note that mounting hardware is not included, so existing hardware or separate purchase may be necessary.

Common Applications and Issues Addressed

• Restores brake fluid pressure for consistent braking performance
• Replaces worn or leaking master cylinders causing brake fluid loss
• Resolves brake pedal sinking or sponginess due to internal seal failure
• Addresses brake warning light activation related to sensor feedback
• Improves overall brake system reliability in Nissan Pathfinder and Infiniti QX4

Installation Notes and Tips

• Ensure compatibility with Nissan Pathfinder and Infiniti QX4 models before installation
• Bleed the brake system thoroughly after installation to remove air pockets
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Inspect brake lines and fittings for wear or damage during installation
• Mounting hardware is not included; retain original hardware or acquire suitable replacements

Quality Assurance and Warranty Information

Dorman manufactures the M630099 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable operation under normal driving conditions. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.