Dorman W37986 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Volkswagen Models

The Dorman W37986 drum brake wheel cylinder is engineered to restore proper braking function for select Volkswagen vehicles. Designed with durable cast iron and precise specifications, this component ensures consistent hydraulic pressure in your brake system.

• Includes bleeder screw for easy brake fluid bleeding
• Brake line inlet thread diameter: 10 mm
• Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
• Bore diameter of 0.75 inches for accurate fitment
• Constructed from cast iron for strength and longevity
• Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W37986 wheel cylinder is made from cast iron, providing the necessary strength to withstand the pressures of brake hydraulics. Its 0.75-inch bore diameter and M10 x 1.0 brake line inlet thread size ensure compatibility with the brake systems of Volkswagen Cabrio, Derby, Golf, Jetta, Polo, Saveiro, SportVan, and Vento 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.

Compatible Volkswagen Models and Part Number Details

This drum brake wheel cylinder is specifically compatible with Volkswagen vehicles such as the Cabrio, Derby, Golf, Jetta, Polo, Saveiro, SportVan, and Vento. When replacing your brake hydraulics, using the correct part number is critical. The Dorman W37986 ensures proper fit and function for these models, maintaining the integrity of your braking system.

Common Brake Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Reduced braking efficiency due to hydraulic pressure loss
• Uneven brake shoe wear caused by malfunctioning cylinders
• Spongy brake pedal feel resulting from air in brake lines
• Brake drag or sticking caused by seized wheel cylinders

Installation Notes and Tips

When installing the Dorman W37986 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any trapped air. Verify the brake line inlet thread size (M10 x 1.0) matches your vehicle’s specifications. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance.

Quality Assurance and Warranty Information

Dorman manufactures this wheel cylinder to meet or exceed OEM standards, using cast iron for durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.