Dorman W8852 Drum Brake Wheel Cylinder - Front Left Lower or Front Left Upper

Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W8852 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron construction and precise bore dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.

• Cast iron casting material for strength and durability
• 1.125 inch bore diameter for accurate fit and function
• Brake line inlet thread diameter of 0.437 inches (7/16-20 thread size)
• Includes one drum brake wheel cylinder per package
• No bleeder screw or bleeder screw cap included

Technical Details and Specifications

The Dorman W8852 wheel cylinder features a 1.125 inch bore diameter, which is critical for maintaining proper hydraulic pressure within the drum brake system. Its cast iron construction provides resistance to wear and corrosion, extending the service life of the brake component. The brake line inlet thread size is 7/16-20 with a diameter of 0.437 inches, ensuring compatibility with standard brake lines. This part is designed to replace worn or leaking wheel cylinders in drum brake assemblies, restoring braking efficiency and safety.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with various makes and models that require a 1.125 inch bore diameter and 7/16-20 brake line inlet thread size. It is commonly used in older domestic and import vehicles equipped with drum brake systems. When searching for replacement parts, referencing the Dorman part number W8852 will help ensure proper fitment and performance.

Common Issues Addressed by the Dorman W8852

• Brake fluid leaks from worn or damaged wheel cylinders
• Reduced braking efficiency due to cylinder bore wear
• Uneven brake application causing vehicle pull or noise
• Brake pedal sponginess related to hydraulic system failure
• Corrosion or damage to original wheel cylinder components

Installation Notes and Tips

Before installation, verify that the bore diameter and brake line inlet thread size match the vehicle’s specifications. Proper brake fluid bleeding is necessary after installation to remove air from the hydraulic system. Since this part does not include a bleeder screw or cap, reuse the existing hardware or source compatible replacements. Use appropriate tools to avoid damage to the cast iron casting during installation.

Quality Assurance and Warranty Information

Dorman manufactures the W8852 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction is tested for durability and resistance to corrosion. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.