Dorman W45997 Drum Brake Wheel Cylinder - Front Left

Reliable Drum Brake Wheel Cylinder for Chevrolet and GMC Vehicles

The Dorman W45997 drum brake wheel cylinder is engineered to restore proper braking function in select Chevrolet and GMC models. Designed with durable cast iron and precise dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.

• Includes bleeder screw for easy brake system bleeding
• Cast iron construction for strength and durability
• 1.125 inch bore diameter for accurate fit and function
• Brake line inlet thread diameter of 0.437 inches with 7/16-20 thread size
• Compatible with Chevrolet Blazer, GMC Jimmy, and C10 Suburban models
• Package contains one drum brake wheel cylinder

Detailed Product Features and Specifications

The Dorman W45997 wheel cylinder is crafted from cast iron, providing a robust and corrosion-resistant component essential for brake hydraulics. Its 1.125 inch bore diameter matches OEM specifications, ensuring proper piston movement and hydraulic pressure. The included bleeder screw simplifies brake fluid bleeding during installation or maintenance, although the bleeder screw cap is not included. The brake line inlet thread diameter measures 0.437 inches with a 7/16-20 thread size, compatible with factory brake lines on Chevrolet Blazer, GMC Jimmy, and C10 Suburban vehicles. This part is designed specifically for drum brake systems, making it a direct replacement for worn or leaking wheel cylinders.

Compatible Vehicles and Common Applications

This drum brake wheel cylinder is compatible with the following vehicles:

• Chevrolet Blazer (drum brake models)
• GMC Jimmy (drum brake models)
• Chevrolet C10 Suburban (drum brake models)

It is intended for use in restoring brake hydraulic function and addressing issues such as:

• Brake fluid leaks from the wheel cylinder
• Spongy or soft brake pedal feel
• Uneven brake application or reduced braking efficiency
• Corroded or seized wheel cylinder pistons
• Brake drag caused by faulty wheel cylinder operation

Installation Notes and Tips

When installing the Dorman W45997 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air and maintain hydraulic integrity. Verify thread compatibility with existing brake lines (7/16-20 thread size) before installation. Inspect brake shoes and hardware for wear and replace as necessary to ensure optimal braking performance. Use appropriate brake fluid and follow manufacturer torque specifications for mounting bolts.

Quality Assurance and Warranty Information

Dorman manufactures this wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under typical operating conditions. While specific warranty details are not provided here, Dorman products generally come with a limited warranty against defects in material and workmanship. Consult product packaging or Dorman’s official resources for exact warranty terms.