Dorman W13368 Drum Brake Wheel Cylinder - Front Left or Rear Left

Reliable Drum Brake Wheel Cylinder for Cadillac and Pontiac

The Dorman W13368 drum brake wheel cylinder is engineered to restore proper braking function in select Cadillac and Pontiac models. Designed with durable cast iron and precise dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.

• Includes bleeder screw for easy brake system bleeding
• Cast iron construction for strength and durability
• Brake line inlet thread diameter of 0.437 inches
• Bore diameter measures 1.063 inches for accurate fit
• Brake component inlet thread size 7/16-20 UNF
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W13368 drum brake wheel cylinder is specifically designed for use in Cadillac Bonneville, Pontiac Catalina, and Cadillac DeVille vehicles. Its cast iron casting material provides reliable resistance to wear and corrosion, essential for maintaining brake system integrity. The included bleeder screw simplifies the process of removing air from the brake lines, helping to maintain consistent hydraulic pressure. With a bore diameter of 1.063 inches and a brake line inlet thread diameter of 0.437 inches, this wheel cylinder matches OEM specifications to ensure proper fit and function. The brake component inlet thread size of 7/16-20 UNF further confirms compatibility with factory brake lines.

Common Applications and Problem Resolution

• Restores braking performance in Cadillac Bonneville and Pontiac Catalina drum brake systems
• Replaces leaking or seized wheel cylinders causing brake fluid loss
• Eliminates spongy brake pedal feel due to internal cylinder wear
• Addresses uneven brake shoe wear from malfunctioning wheel cylinders
• Prevents brake drag caused by stuck pistons within the cylinder

Installation Notes and Tips

When installing the Dorman W13368 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air pockets. Verify thread compatibility with your vehicle’s brake lines, specifically the 7/16-20 UNF inlet thread size. Inspect brake shoes and hardware for wear or damage during replacement to maintain optimal braking performance. Use appropriate brake fluid and follow manufacturer torque specifications for all fittings.

Quality Assurance and Warranty

Dorman manufactures the W13368 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under normal operating conditions. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.