{"product_id":"zhsymx-40k-transmission-oil-cooler-lpd47391-for-40-000-lb-gvw-low-pressure-drop-complete-mounting-kit","title":"ZHSYMX 40k Transmission Oil Cooler LPD47391 for 40,000 lb GVW — Low Pressure Drop, Complete Mounting Kit","description":"\u003cp\u003e\u003cstrong\u003eThe ZHSYMX LPD47391 40k is a heavy-duty, low-pressure-drop transmission oil cooler kit designed to protect transmissions on vehicles up to 40,000 lb GVW while including all required mounting hardware.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for large commercial trucks, trailers and heavy towing rigs, the ZHSYMX LPD47391 combines efficient thermal management with an installation-ready hardware package so fleets and owners can upgrade cooling capacity quickly. Its low-pressure-drop design reduces stress on the transmission circuit while delivering consistent oil temperature control under sustained loads.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the LPD47391 improve transmission cooling on heavy-duty vehicles?\u003c\/h3\u003e\n\u003cp\u003eThe cooler increases heat exchange area and encourages steady fluid flow so transmission oil runs cooler during long hauls or heavy towing. Cooler fluid helps reduce component wear without adding unnecessary pressure to the circuit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for vehicles up to 40,000 lb GVW for commercial applications.\u003c\/li\u003e\n  \u003cli\u003eLow-pressure-drop architecture minimizes system backpressure and pump work.\u003c\/li\u003e\n  \u003cli\u003eRobust fin-and-tube construction for consistent heat transfer under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and how does it simplify installation?\u003c\/h3\u003e\n\u003cp\u003eThe LPD47391 kit ships with a full set of mounting hardware so you can mount the cooler to varied chassis layouts without sourcing separate fasteners. Brackets, bolts and clips match typical heavy-duty installation points for a straightforward retrofit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete mounting kit: brackets, bolts, fasteners and fittings included.\u003c\/li\u003e\n  \u003cli\u003eHardware chosen to fit common heavy-duty truck and trailer configurations.\u003c\/li\u003e\n  \u003cli\u003eInstallation-friendly layout reduces labor time for professional shops or experienced DIYers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the low-pressure-drop feature affect transmission performance?\u003c\/h3\u003e\n\u003cp\u003eNo — the low-pressure-drop design is intended to maintain oil circulation efficiency while lowering pressure loss across the cooler. That means the transmission pump sees less added resistance, supporting reliable hydraulic function even when cooling demands are high.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMinimizes pressure loss to preserve pump efficiency and response.\u003c\/li\u003e\n  \u003cli\u003eReduces additional load on transmission hydraulic systems during operation.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain intended shift and coupling behavior by avoiding excess backpressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support can I expect after purchase?\u003c\/h3\u003e\n\u003cp\u003eZHSYMX provides ongoing warranty support and a responsive after-sales team to handle questions or issues after installation. The manufacturer commits to lifetime warranty service for the transmission oil cooler, backed by customer support to help resolve fitment or performance inquiries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLifelong warranty service for peace of mind over the product lifespan.\u003c\/li\u003e\n  \u003cli\u003eDedicated after-sales support to answer installation and compatibility questions.\u003c\/li\u003e\n  \u003cli\u003eDocumentation and parts guidance available if hardware replacement is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Fleet managers, professional mechanics and owner-operators who run medium- to heavy-duty trucks or trailers and need dependable transmission temperature control will benefit most from the ZHSYMX LPD47391. If your vehicle operates near the 40,000 lb GVW range or regularly tows heavy loads where transmission temperatures rise, this kit offers a practical, install-ready upgrade to improve cooling efficiency and protect drivetrain components.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the LPD47391 compatible with my 40,000 GVW truck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The LPD47391 is designed for vehicles up to 40,000 lb GVW; check physical dimensions and port locations to confirm fitment with your chassis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include all parts needed for mounting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the cooler kit includes brackets, bolts, fasteners and the mounting hardware required for typical heavy-duty installations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZHSYMX","offers":[{"title":"Default Title","offer_id":48084286636190,"sku":"B0FFM7ZTHF","price":89.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zhsymx-lpd47391-front-view-silver.jpg?v=1785849379","url":"https:\/\/northtrailauto.ca\/products\/zhsymx-40k-transmission-oil-cooler-lpd47391-for-40-000-lb-gvw-low-pressure-drop-complete-mounting-kit","provider":"North Trail Auto","version":"1.0","type":"link"}