HomeBrake > Brake HydraulicsDorman W78051 Drum Brake Wheel Cylinder - Front Left
Part #: W78051

Dorman W78051 Drum Brake Wheel Cylinder - Front Left

Front Left
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Reliable Drum Brake Wheel Cylinder for Your Vehicle

The Dorman W78051 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron and a precise 1.125-inch bore diameter, this component ensures consistent hydraulic pressure for safe braking performance.

  • Includes bleeder screw for easy brake system bleeding
  • Constructed from cast iron for strength and durability
  • 1.125-inch bore diameter for accurate hydraulic operation
  • Brake component inlet thread size of 3/8-24 inches
  • Thread diameter of 3/8 inch for secure fitment
  • Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W78051 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 1.125-inch bore diameter is designed to deliver consistent hydraulic pressure to the brake shoes, ensuring reliable stopping power. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake system, improving brake responsiveness. The 3/8-24 inch brake component inlet thread size and 3/8 inch thread diameter ensure compatibility with standard brake line fittings.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with various vehicle makes and models that require a 1.125-inch bore diameter and 3/8-24 inch inlet thread size. It is commonly used in drum brake systems on trucks, SUVs, and passenger cars where reliable hydraulic brake function is essential. The Dorman W78051 part number is referenced for fitment in specific applications; verify compatibility with your vehicle's service manual or parts catalog.

  • Restores proper hydraulic pressure in drum brake systems
  • Eliminates brake fluid leaks from worn or damaged cylinders
  • Resolves spongy or unresponsive brake pedal issues
  • Prevents uneven brake shoe wear caused by cylinder malfunction
  • Improves overall braking safety and performance

Installation Notes and Tips

When installing the Dorman W78051 drum brake wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely supported. Use the included bleeder screw to remove air from the brake lines after installation. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal brake function. Follow manufacturer torque specifications for all fittings and connections.

Quality Assurance and Warranty

Dorman manufactures the W78051 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to reliable brake system performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics products. Consult product documentation or Dorman directly for warranty information.

BrandDorman
Part NumberW78051
Bleeder Screw IncludedYes
Bleeder Screw Cap IncludedNo
Casting MaterialCast iron
Bore Diameter1.125
Brake Component Inlet Thread Size3/8-24 in
Package Contents1 drum brake wheel cylinder
Thread Diameter3/8

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

134.6103933621547400584-34039D1DZ2062AF78051W-81039W906288WC13621WC37177

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.