{"product_id":"dorman-w37643-drum-brake-wheel-cylinder","title":"Dorman W37643 Drum Brake Wheel Cylinder - Rear","description":"\u003ch2\u003eReliable Drum Brake Wheel Cylinder for Chevrolet and GMC\u003c\/h2\u003e\u003cp\u003eThe Dorman W37643 drum brake wheel cylinder is engineered to restore proper braking function for Chevrolet Astro and GMC Safari vehicles. Designed with durable cast iron construction, this wheel cylinder ensures consistent performance and longevity in your brake hydraulics system.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman W37643 Wheel Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncludes bleeder screw for easy brake fluid bleeding\u003c\/li\u003e\n\u003cli\u003eBrake line inlet thread diameter of 0.437 inches\u003c\/li\u003e\n\u003cli\u003eBrake component inlet thread size: 7\/16-24\u003c\/li\u003e\n\u003cli\u003eCast iron casting material for strength and durability\u003c\/li\u003e\n\u003cli\u003eBore diameter measures 0.813 inches\u003c\/li\u003e\n\u003cli\u003ePackage contains one drum brake wheel cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman W37643 drum brake wheel cylinder is specifically designed for use in the brake hydraulics system of Chevrolet Astro and GMC Safari models. Its cast iron construction provides reliable resistance to wear and corrosion, ensuring a long service life. The included bleeder screw simplifies maintenance by allowing for efficient removal of air from the brake lines, which is critical for maintaining proper brake pressure. With a bore diameter of 0.813 inches and a brake line inlet thread diameter of 0.437 inches, this wheel cylinder meets the precise specifications required for optimal brake function. The 7\/16-24 brake component inlet thread size ensures compatibility with factory brake lines, making installation straightforward.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores braking performance in Chevrolet Astro and GMC Safari drum brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces leaking or seized wheel cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eEliminates spongy brake pedal feel due to air in brake lines\u003c\/li\u003e\n\u003cli\u003eAddresses uneven brake wear caused by malfunctioning wheel cylinders\u003c\/li\u003e\n\u003cli\u003ePrevents brake failure related to compromised hydraulic pressure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the brake system is fully depressurized before removal\u003c\/li\u003e\n\u003cli\u003eUse the included bleeder screw to properly bleed air from the brake lines after installation\u003c\/li\u003e\n\u003cli\u003eVerify thread compatibility with existing brake lines (7\/16-24 inlet thread size)\u003c\/li\u003e\n\u003cli\u003eInspect brake shoes and drums for wear during installation\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer torque specifications for mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the W37643 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction is tested for durability and corrosion resistance to ensure reliable brake system performance. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792529916085,"sku":"BKKX-W37643","price":26.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_W37643_Fro.jpg?v=1774997886","url":"https:\/\/www.partcatalog.com\/products\/dorman-w37643-drum-brake-wheel-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}