{"product_id":"dorman-w37684-drum-brake-wheel-cylinder","title":"Dorman W37684 Drum Brake Wheel Cylinder - Rear","description":"\u003ch2\u003eReliable Drum Brake Wheel Cylinder for Nissan D21, Pathfinder, Pickup\u003c\/h2\u003e\u003cp\u003eThe Dorman W37684 drum brake wheel cylinder is engineered to restore proper braking function on select Nissan models. Designed with durable cast iron and precise specifications, this component ensures consistent hydraulic pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes bleeder screw for easy brake system bleeding\u003c\/li\u003e\n\u003cli\u003eConstructed from cast iron for strength and durability\u003c\/li\u003e\n\u003cli\u003eBore diameter of 0.938 inches for accurate fitment\u003c\/li\u003e\n\u003cli\u003eBrake component inlet thread size: (2) M10 x 1.0\u003c\/li\u003e\n\u003cli\u003eThread diameter M10 with a 1.0 thread pitch\u003c\/li\u003e\n\u003cli\u003ePackage contains one drum brake wheel cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman W37684 wheel cylinder is specifically designed for Nissan D21, Pathfinder, and Pickup models, providing a direct replacement for the original equipment part. Its cast iron construction offers resistance to wear and corrosion, maintaining reliable brake hydraulics over time. The bore diameter of 0.938 inches matches OEM specifications to ensure proper piston movement and brake shoe engagement. The included bleeder screw simplifies brake fluid bleeding during installation or maintenance, although a bleeder screw cap is not included. Thread sizes and pitch conform to standard M10 x 1.0 dimensions, facilitating secure connections within the brake system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores braking performance by replacing leaking or seized wheel cylinders\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks that cause reduced hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eAddresses uneven brake shoe wear due to faulty wheel cylinder operation\u003c\/li\u003e\n\u003cli\u003ePrevents brake drag caused by sticking pistons\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability on Nissan D21, Pathfinder, and Pickup vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman W37684 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 and fittings, confirming M10 x 1.0 thread size and pitch. Inspect brake shoes and drums for wear or damage during replacement to optimize braking performance. Use appropriate tools to avoid damaging the cast iron casting during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the W37684 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to long service life under normal operating conditions. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship for a specified period. Refer to Dorman's warranty documentation for complete terms and conditions.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792539418805,"sku":"BKKX-W37684","price":28.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_W37684_Fro.jpg?v=1774997890","url":"https:\/\/www.partcatalog.com\/products\/dorman-w37684-drum-brake-wheel-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}