Dorman M390344 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Pickup

The Dorman M390344 brake master cylinder is designed specifically for Nissan Pickup models, providing precise hydraulic control for your vehicle's braking system. Crafted from durable aluminum, this master cylinder includes a reservoir and sensor to ensure optimal performance and safety.

Key Features of the Dorman M390344 Brake Master Cylinder

• Master cylinder bore diameter: 1 inch for consistent hydraulic pressure
• Constructed from lightweight, corrosion-resistant aluminum
• Includes reservoir for brake fluid storage
• Equipped with a sensor for brake system monitoring
• Three outlet ports 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 Description of the Dorman M390344 Brake Master Cylinder

This brake master cylinder is engineered to meet the hydraulic needs of Nissan Pickup vehicles. The 1-inch bore diameter ensures reliable brake fluid pressure, while the aluminum construction offers durability and resistance to corrosion. The included reservoir allows for proper brake fluid containment, and the integrated sensor supports brake system diagnostics. With three outlets and precise thread specifications (M10 x 1.0), this master cylinder facilitates secure connections to the brake lines, maintaining system integrity.

Common Brake Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal leaks
• Loss of hydraulic pressure affecting braking performance
• Brake fluid contamination or reservoir damage
• Faulty brake system sensor readings
• Corrosion or wear in the master cylinder body

Installation Notes and Tips

• Compatible with Nissan Pickup models; verify fitment before installation
• Mounting hardware is not included; retain original hardware or source separately
• Bleed the brake system thoroughly after installation to remove air
• Inspect brake lines and connections for leaks during installation
• Handle the sensor connection carefully to avoid damage

Quality Assurance and Warranty Information

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction and integrated sensor contribute to long-term reliability. Please consult Dorman's warranty policy for specific coverage details related to the M390344 part number.