{"product_id":"dorman-w37391-drum-brake-wheel-cylinder","title":"Dorman W37391 Drum Brake Wheel Cylinder - Rear","description":"\u003ch2\u003eReliable Drum Brake Wheel Cylinder for Accurate Brake Performance\u003c\/h2\u003e\u003cp\u003eThe Dorman W37391 drum brake wheel cylinder is engineered to restore proper brake hydraulics in compatible vehicles. Designed with durable cast iron and a precise 0.688-inch bore diameter, this wheel cylinder ensures consistent braking force and fluid control for safe stopping.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes bleeder screw for easy brake fluid bleeding\u003c\/li\u003e\n\u003cli\u003eConstructed from cast iron for strength and longevity\u003c\/li\u003e\n\u003cli\u003e0.688-inch bore diameter for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eBrake component inlet thread size of 3\/8-24 inches\u003c\/li\u003e\n\u003cli\u003eThread diameter of 3\/8 inch for secure fitting\u003c\/li\u003e\n\u003cli\u003ePackage contains one drum brake wheel cylinder (part number W37391)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Construction and Precise Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman W37391 wheel cylinder is made from cast iron, providing a robust casting material that withstands the rigors of brake system pressure and heat. Its 0.688-inch bore diameter is designed to match specific vehicle requirements, ensuring proper hydraulic function. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake lines, improving brake responsiveness. The 3\/8-24 inch brake component inlet thread size and 3\/8 inch thread diameter ensure compatibility with standard brake line fittings.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cp\u003eThis drum brake wheel cylinder is compatible with various makes and models that require a 0.688-inch bore diameter and 3\/8-24 inch inlet thread size. It is commonly used in vehicles where the original equipment manufacturer specifies these dimensions for rear drum brake systems. The Dorman W37391 is suitable for restoring brake hydraulics in older trucks, SUVs, and passenger cars that utilize drum brakes.\u003c\/p\u003e\u003ch2\u003eCommon Brake Issues Addressed by This Wheel Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake fluid leaks from worn or damaged wheel cylinders\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency due to internal cylinder corrosion\u003c\/li\u003e\n\u003cli\u003eSpongy brake pedal caused by air in the brake lines\u003c\/li\u003e\n\u003cli\u003eUneven brake shoe wear from inconsistent hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eBrake drag or sticking caused by seized wheel cylinder pistons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman W37391 drum brake 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 lines after installation to remove any trapped air. Verify that the 3\/8-24 inch inlet thread size matches the brake line fittings on your vehicle. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the W37391 wheel cylinder to meet or exceed OEM specifications, using cast iron for durability and reliable performance. This part undergoes quality control inspections to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792493805749,"sku":"BKKX-W37391","price":39.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_W37391_Fro.jpg?v=1774997868","url":"https:\/\/www.partcatalog.com\/products\/dorman-w37391-drum-brake-wheel-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}