HomeBrake > Hardware, Fasteners and FittingsDorman W28720 Drum Brake Wheel Cylinder - Front Left or Front Right
Part #: W28720

Dorman W28720 Drum Brake Wheel Cylinder - Front Left or Front Right

Front Left
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, P300 Van, P200 Van, D100 Series, D100 Pickup, and D200 Pickup
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Reliable Drum Brake Wheel Cylinder for Precise Braking

The Dorman W28720 drum brake wheel cylinder is engineered to restore proper brake function in compatible vehicles. Designed with durable cast iron and precise dimensions, this wheel cylinder ensures consistent hydraulic pressure for safe stopping performance.

  • Includes bleeder screw for easy brake bleeding
  • Cast iron construction for strength and durability
  • 1.125 inch bore diameter for accurate fitment
  • Brake line inlet thread diameter of 0.437 inches
  • Brake component inlet thread size 7/16-20 UNF
  • Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W28720 wheel cylinder features a cast iron casting material that provides long-lasting durability under demanding braking conditions. Its 1.125 inch bore diameter is designed to match specific vehicle requirements, ensuring proper hydraulic pressure and brake shoe movement. The included bleeder screw simplifies maintenance by allowing air to be removed from the brake system efficiently. With a brake line inlet thread diameter of 0.437 inches and a 7/16-20 UNF brake component inlet thread size, this wheel cylinder is engineered for compatibility with a range of drum brake systems.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with various makes and models that require a 1.125 inch bore diameter and the specified thread sizes. It is commonly used in vehicles where reliable brake hydraulics are essential for safety and performance. The Dorman W28720 is suitable for replacing worn or leaking wheel cylinders in drum brake assemblies to restore proper braking function.

  • Leaking or damaged wheel cylinder causing brake fluid loss
  • Spongy or unresponsive brake pedal due to hydraulic issues
  • Uneven brake shoe wear from improper cylinder operation
  • Brake dragging or sticking caused by cylinder malfunction
  • Routine brake system maintenance and component replacement

Installation Notes and Tips

When installing the Dorman W28720 drum brake wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely supported. Use the included bleeder screw to properly bleed air from the brake lines after installation. Verify thread compatibility with your vehicle’s brake lines before beginning installation. It is recommended to inspect brake shoes and hardware during replacement to maintain optimal braking performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The W28720 drum brake wheel cylinder undergoes rigorous quality control to ensure proper fit and function. This part is backed by Dorman’s limited warranty, covering defects in material and workmanship under normal use.

BrandDorman
Part NumberW28720
Bleeder Screw Cap IncludedNo
Bleeder Screw IncludedYes
Bore Diameter1.125
Brake Component Inlet Thread Size7/16-20 UNF
Brake Line Inlet Thread Diameter0.437
Casting MaterialCast Iron
Package Contents1 Drum Brake Wheel Cylinder

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:

134.680171790154546174097371R91F28720W906141WC256930WC28720

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