Dorman W28721 Drum Brake Wheel Cylinder - Front Left or Front Right

Reliable Drum Brake Wheel Cylinder for Ford and Chevrolet Vehicles

The Dorman W28721 drum brake wheel cylinder is engineered to restore proper braking function in select Ford and Chevrolet models. Designed with durable cast iron and precise bore dimensions, this wheel cylinder ensures consistent hydraulic pressure for safe stopping performance.

• Includes bleeder screw for easy brake system bleeding
• Cast iron construction for strength and durability
• 1.125 inch bore diameter for accurate fit and function
• Brake line inlet thread diameter of 0.437 inches
• Brake component inlet thread size 7/16-20 UNF
• Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W28721 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 1.125 inch bore diameter is designed to match factory specifications, ensuring proper hydraulic pressure and brake shoe movement. The included bleeder screw simplifies brake fluid bleeding during installation or maintenance, although a bleeder screw cap is not included. The brake line inlet thread diameter measures 0.437 inches, with a brake component inlet thread size of 7/16-20 UNF, compatible with many OEM brake lines.

Compatible Applications and Common Uses

This drum brake wheel cylinder is compatible with various Ford and Chevrolet vehicles requiring a 1.125 inch bore diameter wheel cylinder with the specified thread sizes. It is commonly used to address issues such as:

• Brake fluid leaks from worn or damaged wheel cylinders
• Spongy or unresponsive brake pedal feel
• Uneven brake shoe wear due to cylinder malfunction
• Reduced braking efficiency in drum brake systems
• Corrosion or pitting inside the wheel cylinder bore

Installation Notes and Tips

When installing the Dorman W28721 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air and maintain hydraulic integrity. Verify thread compatibility with your vehicle’s brake lines before installation. It is recommended to inspect brake shoes and hardware for wear and replace as necessary to ensure optimal braking performance.

Quality Assurance and Warranty

Dorman manufactures the W28721 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to reliable brake system operation. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.