Dorman M631013 Brake Master Cylinder

Reliable Brake Master Cylinder for Ram 2500 and 3500

The Dorman M631013 brake master cylinder is engineered to restore proper brake hydraulics for Ram 2500 and 3500 models. Designed with durable cast iron construction, this master cylinder ensures consistent braking performance and safety.

• Compatible with Ram 2500 and 3500 models
• Cast iron master cylinder material for durability
• Includes master cylinder cap and removable reservoir type
• Two mounting holes for secure installation
• Two outlets with rearward outlet size 1/2-20 and secondary outlet thread diameter 7/16 in-24

Durable Construction and Precise Specifications

The Dorman M631013 brake master cylinder features a 1.313-inch bore diameter, providing the correct hydraulic pressure for your Ram 2500 or 3500 brake system. Its cast iron body offers strength and resistance to wear, while the included master cylinder cap helps maintain system integrity. This part does not include mounting hardware, brake booster, push rod, reservoir, bleeder hoses, sensor, or mounting bracket, so ensure compatibility with your existing components. The removable reservoir type allows for easier maintenance and fluid checks.

Common Brake System Issues Addressed

• Brake pedal sinking or sponginess due to master cylinder failure
• Brake fluid leaks around the master cylinder area
• Reduced braking efficiency or uneven brake pressure
• Brake warning light activation related to hydraulic issues
• Difficulty maintaining proper brake fluid levels

Installation Notes and Tips

When installing the Dorman M631013 brake master cylinder on Ram 2500 or 3500 vehicles, verify that your brake booster and reservoir are compatible since they are not included. Use the two mounting holes to secure the unit firmly. Bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance. Check all connections, including the rearward outlet and secondary outlet threads, for proper fit and sealing.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides long-lasting durability under demanding conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics products to cover defects in materials and workmanship.