Dorman W619021 Drum Brake Wheel Cylinder - Rear Left

Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W619021 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable aluminum casting and precise dimensions, this wheel cylinder ensures consistent hydraulic pressure for safe stopping performance.

• Includes bleeder screw for easy brake bleeding
• Brake line inlet thread diameter: 10 mm
• Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
• Bore diameter measures 17.8 mm for accurate fitment
• Constructed from corrosion-resistant aluminum casting
• Package contains one wheel cylinder

Technical Details and Specifications

The Dorman W619021 wheel cylinder features a 17.8 mm bore diameter, designed to match original equipment specifications for select drum brake systems. Its aluminum casting material offers a balance of strength and corrosion resistance, extending the service life of the brake hydraulics. The included bleeder screw simplifies maintenance by allowing air to be purged from the brake lines, ensuring optimal hydraulic pressure. The brake line inlet thread diameter is 10 mm, with an M10 x 1.0 thread size and 1.0 thread pitch, providing compatibility with standard brake lines on many vehicles.

Compatible Vehicles and Applications

This wheel cylinder is compatible with various makes and models that require a 17.8 mm bore diameter and M10 x 1.0 brake line inlet threads. It is commonly used in drum brake systems on vehicles such as Ford F-150, Chevrolet Silverado, and Dodge Ram models from specific production years. Always verify fitment with your vehicle’s specifications before installation.

Common Brake Issues Addressed

• Brake pedal feels spongy or soft due to hydraulic leaks
• Uneven or reduced braking performance on rear drum brakes
• Brake fluid leakage around the wheel cylinder area
• Brake dragging or sticking caused by faulty wheel cylinder pistons
• Brake warning light activation related to hydraulic system faults

Installation Notes and Tips

When installing the Dorman W619021 wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. Use the included bleeder screw to remove air from the brake lines after installation. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance. Proper torque specifications should be followed for all fittings to prevent leaks.

Quality Assurance and Warranty

Dorman wheel cylinders are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The W619021 part is backed by Dorman’s limited warranty, covering defects in material and workmanship under normal use. Refer to Dorman’s warranty policy for specific terms and conditions.