Dorman W37850 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Geo Metro and Suzuki Swift

The Dorman W37850 drum brake wheel cylinder is engineered to restore proper braking function for Geo Metro and Suzuki Swift vehicles. Designed with durable cast iron construction and precise specifications, 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
• Bore diameter of 0.625 inches for accurate fitment
• Constructed from cast iron for strength and durability
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W37850 drum brake wheel cylinder is specifically designed for use in the rear drum brake systems of Geo Metro and Suzuki Swift models. Its cast iron casting material provides reliable resistance to wear and corrosion, ensuring long service life. The bore diameter of 0.625 inches matches OEM specifications, allowing for proper piston movement and hydraulic pressure transfer. The included bleeder screw simplifies maintenance by enabling efficient removal of air from the brake lines. Thread dimensions of M10 x 1.0 with a 1.0 pitch ensure compatibility with factory brake lines, making installation straightforward.

Common Applications and Issues Addressed

• Restores braking performance when wheel cylinder leaks brake fluid
• Eliminates spongy brake pedal caused by air in the brake lines
• Replaces seized or corroded wheel cylinders that impair brake function
• Prevents uneven brake shoe wear due to inconsistent piston movement
• Addresses brake drag caused by sticking wheel cylinder pistons

Installation Notes and Tips

When installing the Dorman W37850 wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. Use the included bleeder screw to properly bleed the brake system after installation to remove any trapped air. Verify thread compatibility with existing brake lines before assembly. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance.

Quality Assurance and Warranty

Dorman manufactures the W37850 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under typical operating conditions. This part is backed by Dorman's limited warranty, covering defects in material and workmanship to provide confidence in your repair.