Dorman W37248 Drum Brake Wheel Cylinder - Front Left Lower or Front Left Upper

Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W37248 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron construction, this wheel cylinder ensures consistent performance and longevity for your brake hydraulics system.

• Constructed from cast iron for strength and durability
• 1.375 inch bore diameter for accurate hydraulic pressure
• Brake line inlet thread diameter of 0.437 inches (7/16-20 thread size)
• Includes one drum brake wheel cylinder per package
• Does not include bleeder screw or bleeder screw cap

Durable Cast Iron Construction and Precise Specifications

The Dorman W37248 wheel cylinder features a robust cast iron casting material that withstands the rigors of brake system pressure and heat. Its 1.375 inch bore diameter is designed to provide consistent hydraulic force to the brake shoes, ensuring reliable stopping power. The brake line inlet thread size of 7/16-20 (0.437 inch diameter) allows for secure connection to the brake line, maintaining system integrity. This part is ideal for vehicles requiring a drum brake wheel cylinder with these exact specifications.

Compatible Vehicles and Common Applications

This drum brake wheel cylinder is compatible with various makes and models that utilize a 1.375 inch bore diameter and 7/16-20 brake line inlet thread size. It is commonly used in older domestic and import vehicles equipped with drum brake systems. For example, it fits certain Ford, Chevrolet, and Dodge models from the 1980s and 1990s that require a direct replacement for their rear drum brake wheel cylinders. Always verify fitment with your vehicle’s specifications before purchase.

Common Brake Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Uneven or reduced braking performance due to cylinder failure
• Spongy brake pedal caused by internal cylinder seal wear
• Brake drag or sticking caused by seized wheel cylinder pistons
• Corrosion or rust compromising brake hydraulic pressure

Installation Notes and Tips

When installing the Dorman W37248 drum brake wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. Clean the backing plate and brake shoe contact areas before installation. Since this part does not include a bleeder screw or cap, reuse the existing bleeder screw or source a compatible replacement. After installation, bleed the brake system thoroughly to remove air and verify proper brake pedal feel and function.

Quality Assurance and Warranty Information

Dorman manufactures the W37248 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Consult product documentation or the manufacturer for exact warranty terms.