Dorman M630539 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder for Nissan Sentra

The Dorman M630539 brake master cylinder is designed specifically for Nissan Sentra models, providing reliable brake hydraulics performance. This aluminum master cylinder includes a reservoir and sensor, engineered to meet the precise specifications required for effective braking.

• Master cylinder bore diameter: 0.938 inches
• Constructed from durable aluminum material
• Includes reservoir for brake fluid
• Equipped with a sensor for monitoring
• Four outlet ports with rearward outlet size M10 x 1.0
• Secondary outlet thread diameter of 10 mm with 1.0 thread pitch
• Mounting hardware not included

Detailed Product Description

The Dorman M630539 brake master cylinder is a critical component in the brake hydraulics system of Nissan Sentra vehicles. Its aluminum construction ensures corrosion resistance and longevity under demanding conditions. The 0.938-inch bore diameter is calibrated to provide consistent hydraulic pressure, while the included reservoir allows for proper brake fluid storage and management. The integrated sensor supports brake system monitoring, enhancing safety and performance. With four outlets and a rearward outlet size of M10 x 1.0, this master cylinder is designed to interface seamlessly with the vehicle's brake lines. Note that mounting hardware is not included, so ensure compatibility with existing components during installation.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure in Nissan Sentra brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Resolves brake pedal sponginess or failure to build pressure
• Addresses sensor-related brake warning light issues
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Verify compatibility with your specific Nissan Sentra model year 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 for leaks and proper thread engagement (M10 x 1.0 thread pitch)
• Mounting hardware must be sourced separately if needed

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. The M630539 part undergoes rigorous quality control to ensure durability and reliable performance in Nissan Sentra brake systems. While mounting hardware is not included, the product is backed by Dorman's limited warranty against defects in material and workmanship, providing confidence in your replacement part.