Dorman M630923 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Altima and Maxima

The Dorman M630923 brake master cylinder is engineered to restore proper brake hydraulics in Nissan Altima and Maxima models. Designed with durable cast iron and equipped with a removable reservoir, this master cylinder ensures consistent brake fluid delivery and system performance.

Key Features of the Dorman M630923 Brake Master Cylinder

• Constructed from cast iron for strength and durability
• Includes a removable reservoir for easy maintenance
• Equipped with a sensor to monitor brake fluid levels
• Two outlets with M12x1.0 thread diameter for rearward and secondary connections
• Compatible with Nissan Altima and Maxima models
• Mounting hardware not included

Detailed Product Description

The Dorman M630923 brake master cylinder is a critical component in the brake hydraulics system of Nissan Altima and Maxima vehicles. Its 1-inch bore diameter provides the necessary pressure to operate the braking system effectively. The cast iron construction offers long-lasting durability under demanding conditions. This master cylinder comes with a removable reservoir, allowing for straightforward brake fluid inspection and replacement. Additionally, the included sensor helps monitor fluid levels to maintain optimal brake performance. The two outlets, both with M12x1.0 thread diameters, facilitate secure connections to the brake lines, ensuring reliable fluid flow.

Common Applications and Issues Addressed

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from the reservoir or cylinder body
• Resolves brake pedal sinking or sponginess caused by internal seal failure
• Replaces faulty brake fluid level sensor for accurate monitoring
• Addresses brake system malfunctions in Nissan Altima and Maxima models

Installation Notes and Tips

• Ensure compatibility with Nissan Altima and Maxima before installation
• Bleed the brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Check all connections at the M12x1.0 outlets for secure fitment
• Mounting hardware is not included; reuse existing hardware or source separately

Quality Assurance and Warranty Information

Dorman manufactures the M630923 brake master cylinder to meet or exceed OEM specifications for Nissan Altima and Maxima vehicles. The cast iron material and integrated sensor contribute to reliable brake system operation. While mounting hardware is not included, the product undergoes quality checks to ensure proper fit and function. Please refer to Dorman's warranty policy for coverage details.