Dorman W37180 Drum Brake Wheel Cylinder - Rear Lower or Rear Upper

Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W37180 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with a durable cast iron construction and a 1.5-inch bore diameter, this wheel cylinder ensures consistent hydraulic pressure for safe and effective braking performance.

• Includes bleeder screw for easy brake system bleeding
• Brake line inlet thread diameter of 0.437 inches
• Brake component inlet thread size of 7/16-24 UNS
• Constructed from cast iron for strength and durability
• Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W37180 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 1.5-inch bore diameter is designed to deliver consistent hydraulic pressure to the brake shoes, ensuring smooth and reliable braking. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake system, improving brake responsiveness. The brake line inlet thread diameter of 0.437 inches and the 7/16-24 UNS brake component inlet thread size ensure compatibility with specific brake line fittings, making it suitable for certain vehicle models requiring these specifications.

Compatible Vehicles and Common Applications

This drum brake wheel cylinder is compatible with various vehicle makes and models that require a 1.5-inch bore diameter and the specified thread sizes. It is commonly used in rear drum brake assemblies on trucks, SUVs, and passenger cars where reliable hydraulic brake function is essential.

• Restores proper brake pressure in rear drum brake systems
• Addresses brake fluid leaks from worn or damaged wheel cylinders
• Eliminates spongy or unresponsive brake pedal feel
• Prevents uneven brake shoe wear caused by cylinder malfunction
• Helps maintain overall brake system safety and performance

Installation Notes and Tips

When installing the Dorman W37180 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any air pockets. Verify that the brake line inlet threads match the vehicle’s brake line fittings to avoid leaks. Inspect brake shoes and hardware for wear during installation and replace as necessary to maintain optimal braking performance.

Quality Assurance and Warranty

Dorman manufactures the W37180 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under typical operating conditions. While specific warranty details are not provided, Dorman products generally come with a limited warranty against defects in materials and workmanship.