Dorman W37577 Drum Brake Wheel Cylinder - Rear or Rear Right

Reliable Drum Brake Wheel Cylinder for Toyota Vehicles

The Dorman W37577 drum brake wheel cylinder is engineered to restore proper braking function for select Toyota models. Designed specifically for the Corolla, Starlet, and Tercel, this component ensures consistent hydraulic pressure within the drum brake system.

• Includes bleeder screw for easy brake fluid bleeding
• Brake line inlet thread diameter: 10 mm
• Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
• Durable cast iron casting material
• Bore diameter of 0.75 inches for precise fitment
• Package contains one drum brake wheel cylinder

Technical Details and Specifications

The Dorman W37577 wheel cylinder is constructed from cast iron, providing strength and resistance to wear under typical braking conditions. Its bore diameter of 0.75 inches is designed to match the hydraulic requirements of the Toyota Corolla, Starlet, and Tercel drum brake systems. The included bleeder screw facilitates proper brake fluid evacuation during installation or maintenance, although a bleeder screw cap is not included. The brake line inlet thread diameter measures 10 mm, with a thread size of M10 x 1.0 and a thread pitch of 1.0, ensuring compatibility with factory brake lines.

Compatible Toyota Models and Applications

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

• Toyota Corolla
• Toyota Starlet
• Toyota Tercel

Use the Dorman W37577 to address hydraulic brake issues specific to these models, maintaining safe and effective braking performance.

Common Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Reduced braking pressure or spongy brake pedal feel
• Uneven brake shoe wear due to cylinder malfunction
• Brake drag caused by seized or sticking pistons
• Corrosion or internal damage affecting brake hydraulics

Installation Notes and Tips

When installing the Dorman W37577 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 (M10 x 1.0 thread size) before installation. Inspect brake shoes and hardware for wear or damage during replacement to ensure optimal brake system performance.

Quality Assurance and Warranty

Dorman manufactures this wheel cylinder to meet or exceed OEM specifications for fit, form, and function. The cast iron construction provides durability under normal operating conditions. Please refer to Dorman's warranty policy for specific coverage details related to the W37577 part number.