OE Quality
60-Day Returns

Dorman W37182 Drum Brake Wheel Cylinder - Rear Left Lower or Rear Right Lower
Reliable Drum Brake Wheel Cylinder for Precise Braking
The Dorman W37182 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron construction and a 1.5-inch bore diameter, this wheel cylinder ensures consistent hydraulic pressure for safe stopping performance.
- Cast iron casting material for strength and durability
- 1.5-inch bore diameter for accurate hydraulic operation
- Brake line inlet thread diameter of 0.437 inches (7/16-24 thread size)
- Includes one drum brake wheel cylinder per package
- No bleeder screw or bleeder screw cap included
Durable Construction and Precise Specifications
The Dorman W37182 wheel cylinder features a robust cast iron body designed to withstand the rigors of brake system pressure and heat. Its 1.5-inch bore diameter is calibrated to provide the correct hydraulic force needed for drum brake applications. The brake line inlet thread size of 7/16-24 (0.437 inches diameter) ensures compatibility with standard brake lines, facilitating a secure and leak-free connection. This part is ideal for vehicles requiring a reliable replacement drum brake wheel cylinder that meets OEM specifications.
Compatible Vehicles and Applications
This drum brake wheel cylinder is compatible with various makes and models that utilize a 1.5-inch bore diameter and 7/16-24 brake line inlet thread size. It is commonly used in older domestic and import vehicles with drum brake systems. For example, it fits certain Chevrolet, GMC, Ford, and Dodge models from the 1980s and 1990s. Always verify fitment with your vehicle’s specifications before purchase.
- Restores proper hydraulic pressure in drum brake systems
- Eliminates brake drag or uneven braking caused by worn cylinders
- Prevents brake fluid leaks from damaged or corroded wheel cylinders
- Addresses spongy or soft brake pedal feel due to cylinder failure
- Improves overall braking responsiveness and safety
Installation Notes and Tips
When installing the Dorman W37182 drum brake wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely supported. Since this part does not include a bleeder screw or cap, use the existing hardware or source compatible components separately. Properly bleed the brake system after installation to remove air and restore firm pedal feel. Inspect brake shoes and hardware for wear during replacement to maintain optimal braking performance.
Quality Assurance and Warranty
Dorman manufactures the W37182 wheel cylinder to meet or exceed industry standards for brake hydraulics. The cast iron construction provides long-lasting durability under normal operating conditions. While specific warranty details are not provided, Dorman parts typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Dorman |
| Part Number | W37182 |
| Bleeder Screw Included | No |
| Brake Line Inlet Thread Diameter | 0.437 |
| Bleeder Screw Cap Included | No |
| Casting Material | Cast iron |
| Bore Diameter | 1.5 |
| Brake Component Inlet Thread Size | 7/16-24 |
| Package Contents | 1 drum brake wheel cylinder |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.