Dorman W4804 Drum Brake Wheel Cylinder - Rear Right

Reliable Drum Brake Wheel Cylinder for Cadillac Models

The Dorman W4804 drum brake wheel cylinder is engineered to restore proper brake hydraulics in select Cadillac vehicles. Designed specifically for the DeVille, Eldorado, and Fleetwood models, this component ensures consistent braking performance and safety.

Key Features of the Dorman W4804 Wheel Cylinder

• Includes bleeder screw for easy brake system bleeding
• Cast iron construction for durability and corrosion resistance
• 1-inch bore diameter for precise hydraulic pressure
• Brake line inlet thread diameter of 0.437 inches (7/16-20 thread size)
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W4804 drum brake wheel cylinder is crafted from cast iron, providing strength and longevity under demanding braking conditions. Its 1-inch bore diameter is designed to deliver consistent hydraulic pressure to the brake shoes, ensuring effective stopping power. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake lines, which is critical for maintaining brake responsiveness. The brake line inlet thread size of 7/16-20 (0.437 inches diameter) matches factory specifications for a secure and leak-free connection. This wheel cylinder is compatible with Cadillac DeVille, Eldorado, and Fleetwood models, making it a precise replacement part for these vehicles.

Common Applications and Issues Addressed

• Restores brake hydraulic pressure in drum brake systems
• Eliminates brake fluid leaks from worn or damaged wheel cylinders
• Resolves spongy or unresponsive brake pedal feel
• Prevents uneven brake shoe wear caused by cylinder malfunction
• Addresses brake dragging due to stuck pistons within the cylinder

Installation Notes and Tips

• Ensure the brake system is properly bled after installation to remove air
• Inspect brake lines and hoses for wear or damage during replacement
• Use the included bleeder screw to facilitate efficient bleeding
• Verify thread compatibility with existing brake lines before installation
• Follow vehicle-specific service manual instructions for torque specifications

Quality Assurance and Warranty Information

Dorman manufactures the W4804 wheel cylinder to meet or exceed OEM standards for fit and function. The cast iron construction provides reliable performance over time. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.