Dorman W37982 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Subaru Impreza and Legacy

The Dorman W37982 drum brake wheel cylinder is engineered to restore proper brake hydraulics in select Subaru models. Designed specifically for the Subaru Impreza and Legacy, this component ensures consistent braking performance and safety.

• Includes bleeder screw for easy brake fluid bleeding
• Cast iron construction for durability and corrosion resistance
• Brake line inlet thread diameter of 10 mm with M10 x 1.0 thread size
• Bore diameter of 0.688 inches for precise fitment
• Package contains one drum brake wheel cylinder

Product Details and Specifications

The Dorman W37982 drum brake wheel cylinder is made from cast iron, providing strength and longevity under demanding braking conditions. It features a 0.688-inch bore diameter and a brake line inlet thread size of M10 x 1.0 with a 1.0 thread pitch, ensuring compatibility with the brake hydraulics of Subaru Impreza and Legacy models. The included bleeder screw simplifies maintenance by allowing efficient removal of air from the brake lines, although a bleeder screw cap is not included. This part is designed to meet the exact specifications required for reliable brake system operation.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with the following Subaru vehicles:

• Subaru Impreza
• Subaru Legacy

It is intended for use in brake hydraulic systems where the original wheel cylinder requires replacement due to wear or failure.

Common Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Reduced braking efficiency due to cylinder bore wear
• Spongy brake pedal caused by air in brake lines
• Uneven brake shoe wear from malfunctioning wheel cylinders
• Brake drag or sticking caused by seized cylinder pistons

Installation Notes and Tips

• Ensure brake system is fully depressurized before removal
• Use the included bleeder screw to properly bleed air from the brake lines after installation
• Inspect brake shoes and hardware for wear during replacement
• Apply brake fluid compatible lubricant to cylinder pistons if recommended
• Verify thread size compatibility (M10 x 1.0) with existing brake lines

Quality Assurance and Warranty

Dorman manufactures the W37982 drum brake wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides reliable performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.