HomeBrake > Hardware, Fasteners and FittingsDorman W7563 Drum Brake Wheel Cylinder - Rear Left
Part #: W7563

Dorman W7563 Drum Brake Wheel Cylinder - Rear Left

Rear Left
⚙️ 19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Chevrolet, Dodge, GMC, International, Cadillac, and Pontiac, J20, G30 Van, W300 Pickup, G35/G3500 Van, 1200D, DeVille, Fleetwood, 1000C, 1100C, W300 Series, Calais, Bonneville, Catalina, Grand Prix, and Star Chief
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Reliable Drum Brake Wheel Cylinder for Cadillac, Jeep, and Pontiac

The Dorman W7563 drum brake wheel cylinder is engineered to restore proper braking function in select Cadillac, Jeep, and Pontiac models. Designed with durable cast iron and precise dimensions, this component ensures consistent hydraulic pressure for safe and effective braking performance.

  • Includes bleeder screw for easy brake system bleeding
  • Cast iron construction for strength and durability
  • 1-inch bore diameter for accurate fit and function
  • Brake line inlet thread diameter of 0.437 inches
  • Brake component inlet thread size 7/16-24 UNS
  • Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W7563 drum brake wheel cylinder is manufactured from cast iron, providing a robust and long-lasting solution for brake hydraulics. Its 1-inch bore diameter and 0.437-inch brake line inlet thread diameter ensure compatibility with the brake systems of various Cadillac models such as the DeVille, Fleetwood, and Eldorado, as well as Jeep J20 trucks and Pontiac Bonneville, Catalina, and Grand Prix vehicles. The included bleeder screw facilitates straightforward brake bleeding, although a bleeder screw cap is not included. The brake component inlet thread size of 7/16-24 UNS matches OEM specifications for a secure connection.

Common Applications and Issues Addressed

  • Restores hydraulic pressure in drum brake systems
  • Eliminates brake fluid leaks from worn or damaged wheel cylinders
  • Resolves uneven or spongy brake pedal feel
  • Prevents brake drag caused by stuck pistons
  • Improves overall braking responsiveness and safety

Installation Notes and Tips

When installing the Dorman W7563 wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. 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 assembly. It is recommended to inspect brake shoes and hardware during replacement to maintain optimal brake performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, with cast iron construction providing durability under demanding conditions. The W7563 wheel cylinder undergoes rigorous quality control to ensure reliable operation. Warranty coverage details can be obtained from the product documentation or manufacturer.

BrandDorman
Part NumberW7563
Bleeder Screw Cap IncludedNo
Bleeder Screw IncludedYes
Bore Diameter1
Brake Component Inlet Thread Size7/16-24 UNS
Brake Line Inlet Thread Diameter0.437
Casting MaterialCast Iron
Package Contents1 Drum Brake Wheel Cylinder

This part fits 19 vehicles. Search below:

YearMakeModelPositionNotes
1977JeepJ20Rear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1976JeepJ20Rear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1971GMCG35/G3500 VanRear LeftFits vehicles with front disc brakes featuring a 1-inch bore.
1968CadillacDeVilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1968CadillacFleetwoodRear LeftFits drum brake wheel cylinders, bore size of 1 inch, excluding commercial chassis.
1967CadillacDeVilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1967CadillacFleetwoodRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1964PontiacBonnevilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1964PontiacCatalinaRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1964PontiacGrand PrixRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1963PontiacBonnevilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1963PontiacCatalinaRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1963PontiacGrand PrixRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1962PontiacBonnevilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1962PontiacCatalinaRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1961PontiacBonnevilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1961PontiacCatalinaRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1960PontiacBonnevilleRear LeftCompatible with 1-inch bore drum brake wheel cylinders.
1960PontiacCatalinaRear LeftCompatible with 1-inch bore drum brake wheel cylinders.

* 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:

134.640031800840318E219221913300275080R9184-38003F9336W-84003W906027WC255910WC7563

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