Dorman M88783 Brake Master Cylinder

Reliable Brake Master Cylinder for Chrysler, Dodge, and Plymouth Vehicles

The Dorman M88783 brake master cylinder is engineered to restore proper brake hydraulics in select Chrysler, Dodge, and Plymouth models. Designed with a cast iron body and an included reservoir, this master cylinder ensures consistent brake fluid delivery for safe and effective braking performance.

• Master cylinder bore diameter: 1.031 inches for precise hydraulic pressure
• Durable cast iron construction for long-lasting service
• Includes reservoir for brake fluid storage
• Two outlet ports with rearward outlet size 1/2-20 and secondary outlet thread diameter 9/16-20
• Compatible with Chrysler, Dodge, and Plymouth models including B100, D150, Ramcharger, and Town & Country

Detailed Product Description

The Dorman M88783 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Its 1.031-inch bore diameter is designed to match OEM specifications, ensuring proper brake fluid displacement. Constructed from cast iron, this master cylinder offers durability and resistance to wear under demanding conditions. The included reservoir simplifies installation by providing an integrated brake fluid container, while the two outlet ports with specific thread sizes (1/2-20 rearward outlet and 9/16-20 secondary outlet) allow for secure brake line connections. This part is compatible with a range of Chrysler, Dodge, and Plymouth vehicles such as the B100, B200, D300, Monaco, Newport, and Ramcharger, making it a suitable replacement for maintaining brake system integrity.

Common Applications and Issues Addressed

• Restores brake pressure loss due to worn or leaking master cylinder
• Eliminates spongy or unresponsive brake pedal feel
• Prevents brake fluid leaks that can compromise braking safety
• Replaces damaged or corroded master cylinder components
• Ensures proper brake fluid flow for dual outlet brake systems

Installation Notes and Tips

• Mounting hardware is not included; reuse existing hardware or source separately
• Bleed the brake system thoroughly after installation to remove air
• Verify outlet thread sizes (1/2-20 and 9/16-20) match brake lines before installation
• Inspect brake lines and fittings for wear or damage during replacement
• Follow vehicle-specific service manual procedures for safe installation

Quality Assurance and Warranty

Dorman manufactures the M88783 brake master cylinder to meet or exceed OEM standards for fit and function. The cast iron construction and precise bore diameter contribute to reliable brake system performance. While mounting hardware is not included, the product undergoes quality checks to ensure durability and compatibility with specified Chrysler, Dodge, and Plymouth models. Warranty coverage details should be confirmed with the product documentation or supplier.