Dorman M36463 Brake Master Cylinder

Dorman M36463 Brake Master Cylinder

The Dorman M36463 brake master cylinder is built for specific Dodge W200 and W300 applications, with the bore size and outlet configuration needed for direct hydraulic system replacement. It uses new, high-quality materials and a cast iron body to match original design, function, and performance on the listed vehicles.

Key Features

• 1.125 in. bore diameter for the specified brake system setup
• Cast iron master cylinder construction
• Reservoir included
• Two outlet ports for the original hydraulic routing
• Rearward outlet size: 1/2-20
• Secondary outlet thread diameter: 9/16-18
• Master cylinder only; mounting hardware not included

Detailed Description

Designed as a replacement brake master cylinder for select Dodge trucks, the Dorman M36463 helps restore hydraulic pressure delivery in vehicles that use a 1.125-inch bore size. It is listed for 1975-1978 Dodge W200 models with a 4,500 lb. axle, 1978 Dodge W300 models with drum brake systems and a 1.125-inch bore, and 1975-1977 Dodge W300 models with power brakes and a 1.125-inch bore. This part cross-references Raybestos Brakes MC36463 for the same application.

For buyers searching for a brake master cylinder for 1975-1978 Dodge W200, a 1978 Dodge W300 drum brake master cylinder, or a 1975-1977 Dodge W300 power brake master cylinder, this part number provides a direct-fit service replacement with the correct reservoir and outlet layout. Dorman M36463 is engineered to follow the original master cylinder design for the listed Dodge W200 and Dodge W300 configurations.

What It Helps Address

• Low or inconsistent brake pedal response caused by master cylinder wear
• External fluid leakage from a failing hydraulic cylinder body or seals
• Brake fluid loss at the master cylinder reservoir or outlet connections
• Uneven hydraulic pressure delivery in drum brake or power brake systems
• Restoration of braking performance on listed Dodge W200 and W300 trucks

Installation Notes and Tips

• Verify bore size, outlet thread sizes, and reservoir configuration before installation.
• Confirm vehicle brake system type: drum brake or power brake application as listed.
• Bench bleed the master cylinder before final installation to help remove trapped air.
• Inspect brake lines, fittings, and related hydraulic components for wear or corrosion during replacement.
• Use the listed fitment details to confirm the correct Dodge W200 or W300 application.

Quality Assurance

This brake master cylinder is manufactured from new materials and built to match the design, function, and performance of the original unit on the specified vehicles. Dorman M36463 is a direct replacement option for the listed Dodge truck applications.