Dorman M39406 Brake Master Cylinder

Overview of the Dorman Brake Master Cylinder M39406

The Dorman Brake Master Cylinder M39406 is designed specifically for Nissan Pulsar NX and Sentra models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure proper brake system function.

• Compatible with Nissan Pulsar NX and Sentra
• Master cylinder bore diameter: 0.75 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for accurate brake fluid management
• Two outlets with secondary outlet thread diameter of 10 mm
• Rearward outlet size: M10 x 1.0 with 1.0 thread pitch
• Mounting hardware not included

Detailed Product Description

The Dorman M39406 brake master cylinder is engineered to meet the specific hydraulic requirements of Nissan Pulsar NX and Sentra vehicles. Its aluminum body offers corrosion resistance and strength, ensuring long-lasting performance under demanding conditions. The 0.75-inch bore diameter is calibrated to provide consistent brake fluid pressure, while the included reservoir allows for proper fluid storage and monitoring. Additionally, the integrated sensor supports the vehicle’s brake warning system by detecting fluid levels or pressure changes. The master cylinder features two outlets, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0, both with a 1.0 thread pitch, facilitating secure connections to the brake lines.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure in Nissan Pulsar NX and Sentra models
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Resolves brake fluid leaks from damaged or corroded master cylinders
• Supports brake warning sensor functionality for improved safety alerts
• Addresses inconsistent braking performance due to master cylinder failure

Installation Notes and Tips

• Ensure compatibility with Nissan Pulsar NX or Sentra before installation
• Bleed the brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Mounting hardware is not included; retain original hardware or source separately
• Check sensor connections for proper operation after installation

Quality Assurance and Warranty

Dorman manufactures the M39406 brake master cylinder to meet or exceed OEM specifications for fit and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While mounting hardware is not included, the product undergoes quality checks to ensure durability and compatibility with Nissan Pulsar NX and Sentra vehicles. Warranty coverage details should be confirmed through the point of purchase or Dorman directly.