Dorman M39768 Brake Master Cylinder

Reliable Brake Master Cylinder for Dodge, Mitsubishi, and Plymouth

The Dorman M39768 brake master cylinder is engineered to restore proper brake hydraulics in select Dodge, Mitsubishi, and Plymouth vehicles. Designed with precision, this aluminum master cylinder offers durability and consistent performance for models like the Colt, Eclipse, Galant, Laser, and Mirage.

• Master cylinder bore diameter: 0.875 inches for accurate hydraulic pressure
• Constructed from durable aluminum material
• Includes two outlets with a rearward outlet size of M10 x 1.0 and a secondary outlet thread diameter of 10 mm
• Thread pitch of 1.0 for secure fitting
• Package contains the master cylinder only; mounting hardware and reservoir are not included
• Sensor not included

Detailed Product Description

The Dorman M39768 brake master cylinder is a direct replacement part designed specifically for brake hydraulics systems in Dodge, Mitsubishi, and Plymouth vehicles. Its 0.875-inch bore diameter ensures proper hydraulic pressure is maintained for effective braking response. Manufactured from aluminum, this master cylinder provides corrosion resistance and long service life. The unit features two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet with a 10 mm thread diameter, both with a 1.0 thread pitch to ensure compatibility with original brake lines. This part does not include a reservoir or mounting hardware, so those components must be sourced separately if needed.

Common Applications and Issues Addressed

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates spongy or unresponsive brake pedal feel
• Resolves internal leaks within the brake hydraulic system
• Addresses brake fluid contamination affecting master cylinder performance
• Replaces faulty master cylinder in Dodge Colt, Mitsubishi Eclipse, Galant, Laser, and Plymouth Mirage models

Installation Notes and Tips

• Ensure brake fluid reservoir and mounting hardware are compatible and available before installation
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function
• Verify thread pitch and outlet sizes match existing brake lines for a secure fit
• Consult vehicle-specific service manual for torque specifications and installation procedures

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The M39768 brake master cylinder undergoes rigorous quality control to ensure reliable performance in brake hydraulic systems. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or region.