Dorman W370038 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Pontiac and Toyota Models

The Dorman W370038 drum brake wheel cylinder is engineered to restore proper braking function in select Pontiac and Toyota vehicles. Designed with durable cast iron and precise specifications, this component ensures consistent hydraulic pressure for safe and effective braking performance.

Key Features of the Dorman W370038 Wheel Cylinder

• Includes bleeder screw for easy brake system bleeding
• Brake line inlet thread diameter: 10 mm
• Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
• Constructed from cast iron for strength and durability
• Bore diameter measures 0.688 inches for accurate fitment
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W370038 drum brake wheel cylinder is specifically designed for compatibility with Pontiac Vibe and Toyota Matrix and RAV4 models. Its cast iron construction provides reliable resistance to wear and corrosion, essential for maintaining brake system integrity. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake hydraulics, ensuring consistent pedal feel and braking response. The precise bore diameter of 0.688 inches and M10 x 1.0 brake line inlet thread size with a 1.0 thread pitch guarantee a secure and leak-free connection within the brake system.

Common Applications and Issues Addressed

• Restores hydraulic pressure in drum brake systems
• Eliminates brake fluid leaks from worn or damaged wheel cylinders
• Resolves spongy or soft brake pedal feel caused by air in brake lines
• Prevents uneven brake shoe wear due to malfunctioning wheel cylinders
• Addresses brake drag or sticking caused by seized wheel cylinders

Installation Notes and Tips

• Ensure compatibility with Pontiac Vibe, Toyota Matrix, and Toyota RAV4 models before installation
• Use the included bleeder screw to properly bleed the brake system after installation
• Inspect brake lines and hardware for wear or damage during replacement
• Follow manufacturer torque specifications for brake line fittings to avoid leaks
• Test brake pedal firmness and check for leaks before driving

Quality Assurance and Warranty Information

Dorman manufactures the W370038 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction ensures durability under normal operating conditions. This part includes a bleeder screw for maintenance convenience. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.