Dorman M39593 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan D21 Pickup

The Dorman M39593 brake master cylinder is designed specifically for Nissan D21 Pickup models, providing precise hydraulic control for your vehicle's braking system. This aluminum master cylinder includes a reservoir and sensor to ensure optimal performance and safety.

• Master cylinder bore diameter: 1 inch
• Constructed from durable aluminum material
• Includes reservoir for fluid storage
• Equipped with a sensor for brake system monitoring
• Two outlet ports with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Secondary outlet thread diameter: 10 mm
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M39593 brake master cylinder is engineered with a 1-inch bore diameter to match the hydraulic requirements of Nissan D21 Pickup brake systems. Its aluminum construction offers corrosion resistance and durability under demanding conditions. The included reservoir allows for proper brake fluid containment, while the integrated sensor supports brake system diagnostics and safety features. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this master cylinder ensures compatibility with the vehicle's brake lines. Note that mounting hardware is not included, so existing hardware or separate purchase may be necessary.

Compatible Nissan D21 Pickup Brake System Applications

• Replacement for worn or leaking master cylinders in Nissan D21 Pickup models
• Resolves issues with brake fluid leaks or pressure loss
• Addresses brake pedal sponginess or failure to build pressure
• Restores proper brake fluid reservoir function and sensor feedback
• Improves overall brake system reliability and safety

Installation Notes and Tips

When installing the Dorman M39593 brake master cylinder on a Nissan D21 Pickup, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air pockets and verify sensor connections for accurate brake system monitoring. Since mounting hardware is not included, inspect existing hardware for wear or damage and replace if necessary. Follow vehicle-specific service manual instructions for torque specifications and safety precautions.

Quality Assurance and Warranty Information

Dorman manufactures the M39593 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term durability and reliable brake performance. This part is backed by Dorman's quality assurance processes; please refer to Dorman's official warranty policy for specific coverage details.