Dorman M390343 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan Pickup

The Dorman M390343 brake master cylinder is designed specifically for Nissan Pickup models, providing precise hydraulic control for your vehicle's braking system. This aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance and safety.

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

Product Details and Specifications

The Dorman M390343 brake master cylinder is engineered with a 1-inch bore diameter to deliver consistent hydraulic pressure essential for effective braking. 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 is tailored to meet the hydraulic requirements of Nissan Pickup vehicles. Note that mounting hardware is not included, so ensure compatibility with your existing brake system components.

Compatible Nissan Pickup Brake System Applications

• Replacement for worn or leaking brake master cylinders on Nissan Pickup models
• Addresses issues such as spongy brake pedal feel or reduced braking efficiency
• Resolves brake fluid leaks from the master cylinder reservoir or outlets
• Restores proper brake fluid pressure and pedal responsiveness
• Supports brake system sensor functionality for accurate monitoring

Installation Notes and Tips

When installing the Dorman M390343 brake master cylinder on your Nissan 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 feedback. Since mounting hardware is not included, retain or source compatible fasteners to secure the master cylinder. Follow manufacturer torque specifications to avoid damage or leaks.

Quality Assurance and Warranty Information

Dorman manufactures the M390343 brake master cylinder to meet or exceed OEM standards for fit, form, and function on Nissan Pickup vehicles. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.