Dorman M39810 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan 240SX

The Dorman M39810 Brake Master Cylinder is engineered to restore proper brake hydraulics for Nissan 240SX models. Designed with precision, this master cylinder includes a reservoir and sensor to ensure optimal brake system performance.

• Master cylinder bore diameter: 0.875 inches for accurate hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir and sensor for complete brake system integration
• Features three outlets with a secondary outlet thread diameter of 10 mm
• Rearward outlet size: M10 x 1.0 with a thread pitch of 1.0
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

The Dorman M39810 Brake Master Cylinder is specifically designed for the Nissan 240SX, providing a precise fit and reliable brake hydraulics. Its 0.875-inch bore diameter ensures consistent hydraulic pressure, while the aluminum construction offers durability and resistance to corrosion. This master cylinder comes complete with a reservoir and sensor, allowing for seamless integration with the vehicle’s brake system. The three outlet ports, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0, accommodate the necessary brake lines for proper fluid distribution. The included sensor helps monitor brake fluid levels or pressure, contributing to vehicle safety and performance.

Common Applications and Issues Addressed

• Restores brake hydraulic pressure in Nissan 240SX models
• Replaces worn or leaking master cylinders causing brake fluid loss
• Solves issues related to inconsistent brake pedal feel or sponginess
• Addresses sensor malfunctions affecting brake system warnings
• Corrects leaks or damage in the brake master cylinder reservoir

Installation Notes and Tips

Installation of the Dorman M39810 Brake Master Cylinder requires careful attention to brake fluid handling and bleeding procedures. Note that mounting hardware is not included, so existing hardware should be inspected and reused or replaced as needed. Ensure all brake lines are properly connected to the three outlets, including the secondary and rearward outlets with specified thread sizes. After installation, thoroughly bleed the brake system to remove air and verify proper brake pedal response before driving.

Quality Assurance and Warranty

Dorman manufactures the M39810 Brake Master Cylinder to meet or exceed OEM specifications for the Nissan 240SX. The aluminum construction and included sensor contribute to long-term reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics products to cover defects in materials and workmanship.