{"product_id":"zhsymx-transmission-oil-cooler-lpd47391-for-40-000-lb-gvw-low-pressure-drop-core-black-with-mounting-kit","title":"ZHSYMX Transmission Oil Cooler LPD47391 for 40,000 lb GVW — Low-Pressure-Drop Core, Black with Mounting Kit","description":"\u003cp\u003e\u003cstrong\u003eZHSYMX LPD47391 is a heavy-duty, low-pressure-drop transmission oil cooler built to protect transmissions on vehicles up to 40,000 lb GVW and includes all mounting hardware for fast installation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis transmission oil cooler is engineered for commercial trucks, towing rigs, and other heavy vehicles that demand reliable thermal management. The LPD47391 combines a low-pressure-drop core with a full mounting kit so you can reduce transmission temperatures without creating excess system drag or complex fitment needs. It is finished in durable black and is intended to replace or upgrade factory coolers for improved heat rejection and longer transmission life when used as part of routine maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the low-pressure-drop design benefit heavy-duty transmissions?\u003c\/h3\u003e\n\u003cp\u003eThe LPD47391 minimizes pressure loss through the cooler, which helps the transmission hydraulic system operate efficiently while still lowering fluid temperature. That balance reduces extra load on pumps and maintains consistent fluid flow under heavy towing or hauling conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLow-pressure-drop core reduces resistance to fluid flow.\u003c\/li\u003e\n  \u003cli\u003eMaintains transmission pump efficiency under load.\u003c\/li\u003e\n  \u003cli\u003eHelps keep fluid temperatures in optimal range during extended operation.\u003c\/li\u003e\n  \u003cli\u003eReduces stress on seals and components by avoiding excessive backpressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and applications is this cooler compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe kit is specified for heavy-duty applications up to a 40,000 lb gross vehicle weight (GVW), making it suitable for many commercial trucks, trailers and towing setups. It fits a wide range of configurations where a robust cooler and universal mounting hardware are required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommercial medium- to heavy-duty trucks and vocational vehicles.\u003c\/li\u003e\n  \u003cli\u003eTow trucks, large RVs, and heavy trailers within the 40k GVW limit.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement for factory coolers in similar-spec applications.\u003c\/li\u003e\n  \u003cli\u003eFleet upgrades where improved cooling and reliability are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is included and how does installation work?\u003c\/h3\u003e\n\u003cp\u003eThe LPD47391 ships with a complete mounting hardware set to simplify installation across different chassis layouts. Basic mechanical skills and common hand tools are typically sufficient; professional installation is recommended if frame modifications or custom brackets are required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete mounting kit: brackets, bolts, and fasteners matched to the cooler.\u003c\/li\u003e\n  \u003cli\u003eBlack-coated finish for corrosion resistance and discreet appearance.\u003c\/li\u003e\n  \u003cli\u003eStandard inlet and outlet fittings compatible with typical transmission lines.\u003c\/li\u003e\n  \u003cli\u003eInstallation time varies by vehicle but often fits into routine service windows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this cooler affect long-term maintenance and reliability?\u003c\/h3\u003e\n\u003cp\u003eBy keeping transmission fluid temperatures lower during sustained heavy use, the LPD47391 helps reduce thermal degradation of fluid and internal parts. That can lengthen service intervals for the transmission and reduce the likelihood of heat-related failures when used alongside proper maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps limit thermal wear on clutch packs and seals.\u003c\/li\u003e\n  \u003cli\u003eSupports longer fluid life when change intervals are observed.\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists typical road and environmental exposure.\u003c\/li\u003e\n  \u003cli\u003eBacked by the brand's after-sales support and warranty service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The ZHSYMX LPD47391 40k transmission cooler kit is aimed at fleet managers, heavy-duty truck owners, professional tow operators, and anyone who regularly operates vehicles near the 40,000 lb GVW range and needs dependable, lower-pressure transmission cooling. It suits users seeking a robust aftermarket cooler with included hardware, straightforward installation potential, and design features that prioritize flow efficiency and long-term component protection.\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: Will this cooler fit my truck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The LPD47391 is designed for heavy-duty vehicles up to 40,000 lb GVW; verify inlet\/outlet sizes and mounting space before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—the cooler ships with brackets, bolts, and fasteners needed for most standard installations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZHSYMX","offers":[{"title":"Default Title","offer_id":48084296433822,"sku":"B0FFMFSK55","price":94.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zhsymx-transmission-cooler-front-view.jpg?v=1785849404","url":"https:\/\/northtrailauto.ca\/products\/zhsymx-transmission-oil-cooler-lpd47391-for-40-000-lb-gvw-low-pressure-drop-core-black-with-mounting-kit","provider":"North Trail Auto","version":"1.0","type":"link"}