Dorman M390399 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford and Mazda Vehicles

The Dorman M390399 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford and Mazda models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

• Master cylinder bore diameter: 1.063 inches for accurate hydraulic pressure
• Durable aluminum construction for corrosion resistance
• Includes reservoir and sensor for integrated brake system monitoring
• Three outlet ports with secondary outlet thread diameter of 10 mm
• Rearward outlet sizes: M10 x 1.0 and M18 x 1.0 thread pitch
• Compatible with Ford B2300, B2500, B3000, B4000, Explorer, Explorer Sport, Explorer Sport Trac, and Ranger models

Product Details and Specifications

The Dorman M390399 brake master cylinder is crafted from aluminum, providing a lightweight yet durable component that resists corrosion and wear. Its 1.063-inch bore diameter is designed to deliver precise hydraulic pressure for effective braking. This master cylinder comes complete with an integrated reservoir and sensor, allowing for seamless brake fluid management and system monitoring. Featuring three outlets, including a secondary outlet with a 10 mm thread diameter and rearward outlets sized M10 x 1.0 and M18 x 1.0, this part supports complex brake line configurations found in various Ford and Mazda trucks and SUVs.

Compatible Vehicles and Applications

This brake master cylinder is compatible with multiple Ford and Mazda models, including the Ford B2300, B2500, B3000, B4000, Explorer series (Explorer, Explorer Sport, Explorer Sport Trac), and Ranger. It is designed to replace the original equipment part, ensuring proper fit and function in these vehicles.

• Restores brake hydraulic pressure and pedal feel
• Resolves brake fluid leaks from the master cylinder
• Addresses brake warning light issues related to sensor failure
• Fixes inconsistent brake pedal travel or sponginess
• Replaces worn or damaged master cylinder components

Installation Notes and Tips

Installation of the Dorman M390399 brake master cylinder requires basic mechanical skills and proper brake system knowledge. It is important to bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance. Note that mounting hardware is not included, so retain original fasteners or acquire appropriate replacements. Verify thread pitch and outlet sizes to match existing brake lines for a secure fit.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications, using quality materials and precise engineering. The part includes a sensor to maintain system diagnostics and safety. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Consult product documentation or the manufacturer for exact warranty terms.