Dorman W37409 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W37409 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron and a 0.75-inch bore diameter, this component ensures consistent hydraulic pressure for safe stopping performance.

• Includes bleeder screw for easy brake system bleeding
• Brake line inlet thread diameter of 10 mm with M10 x 1.0 thread size and 1.0 thread pitch
• Constructed from cast iron for strength and longevity
• Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W37409 wheel cylinder features a cast iron casting material that provides resistance to wear and corrosion, essential for maintaining brake system integrity. Its 0.75-inch bore diameter is designed to deliver the correct hydraulic force to the brake shoes. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake lines, improving brake responsiveness. The brake line inlet thread diameter of 10 mm with an M10 x 1.0 thread size and 1.0 thread pitch ensures compatibility with specific brake line fittings, making it suitable for certain vehicle models requiring these specifications.

Common Applications and Problem Resolution

This drum brake wheel cylinder is typically used in rear drum brake assemblies on various vehicles. It addresses several brake system issues, including:

• Brake fluid leaks from worn or damaged wheel cylinders
• Spongy or unresponsive brake pedal due to air in the brake lines
• Uneven brake shoe wear caused by inconsistent hydraulic pressure
• Brake dragging or sticking from seized wheel cylinders
• Reduced braking efficiency in drum brake systems

Installation Notes and Tips

When installing the Dorman W37409 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air pockets. Verify that the brake line inlet threads match the M10 x 1.0 specification to avoid leaks. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance. Use appropriate tools to avoid damaging the cast iron casting during installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The W37409 drum brake wheel cylinder undergoes rigorous quality control to ensure proper fit and function. Warranty coverage details can be obtained from the product documentation or manufacturer, typically offering protection against defects in materials and workmanship.