Dorman W18197 Drum Brake Wheel Cylinder - Rear Lower

Reliable Drum Brake Wheel Cylinder for Accurate Braking

The Dorman W18197 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron construction and precise dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.

• Cast iron casting material for strength and durability
• 1.5 inch bore diameter for reliable hydraulic operation
• 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

Durable Construction and Precise Specifications

The Dorman W18197 wheel cylinder features a cast iron body that withstands the rigors of brake system pressure and heat. Its 1.5 inch bore diameter is designed to provide consistent piston movement within the drum brake assembly. The brake line inlet thread size of 7/16-20 (0.437 inch diameter) ensures compatibility with standard brake lines, facilitating a secure hydraulic connection. This part is ideal for restoring braking performance on vehicles requiring this specific wheel cylinder size and thread configuration.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with various makes and models that utilize a 1.5 inch bore diameter and 7/16-20 brake line inlet thread. Commonly found on certain domestic and import vehicles, the Dorman W18197 is suitable for those seeking a direct replacement part to maintain factory brake system integrity. Always verify fitment with your vehicle’s specifications before purchase.

Common Brake Issues Addressed

• Leaking or damaged wheel cylinder causing brake fluid loss
• Uneven brake application or reduced braking efficiency
• Brake pedal sinking or spongy feel due to hydraulic failure
• Corroded or worn internal components affecting piston movement
• Brake drag or sticking caused by faulty wheel cylinder operation

Installation Notes and Tips

When installing the Dorman W18197 wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely supported. Clean the backing plate and brake hardware before assembly. Use compatible brake fluid and bleed the brake system thoroughly after installation to remove air and restore proper hydraulic pressure. Since this part does not include a bleeder screw, reuse the existing bleeder or source a compatible replacement if necessary.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The W18197 wheel cylinder undergoes rigorous quality control to ensure proper fit and function. Please consult Dorman’s warranty policy for specific coverage details related to this brake hydraulics component.