{"product_id":"hayden-automotive-678-universal-rapid-cool-transmission-cooler-kit-9-5-x-11-not-oe-replacement","title":"Hayden Automotive 678 Universal Rapid-Cool Transmission Cooler Kit – 9.5 x 11 (Not OE Replacement)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Hayden Automotive 678 Universal Rapid-Cool Transmission Cooler is designed as a versatile add-on cooling solution for diverse vehicle setups. Built with a compact plate-and-fin design, it concentrates heat rejection where you need it most, while keeping the installation footprint manageable. This kit is explicitly an add-on cooler and is not intended as a direct replacement for the factory OE cooler.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCooler body with the patented Flow Path Design\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch to 11 inch hose connections with secure 19 millimeter hose barb fittings\u003c\/li\u003e\n  \u003cli\u003eComplete mounting hardware and fittings for simple installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey design benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePatented internal turbulation enhances heat transfer while limiting pressure drop\u003c\/li\u003e\n  \u003cli\u003eCompact form factor measures 3\/4 inch x 11 inch x 9-1\/2 inch, helping it fit in tighter engine bays\u003c\/li\u003e\n  \u003cli\u003eQuality plate-and-fin construction balances durability with efficient cooling performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere it fits and what it can support\u003c\/h3\u003e\n\u003cp\u003eThis universal cooler is suited for pickup trucks, vans, class C motor homes, and travel trailers up to 24 feet long. It pairs well with towing scenarios that demand steady cooling as loads climb, while the GVWR can be accommodated up to 24,000 pounds and towing up to 5,000 pounds, depending on your vehicle’s configuration.\u003c\/p\u003e\n\n\u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHauling gear on a weekend trip with a trailer up to 24 feet, where steady transmission temperatures matter during climbs\u003c\/li\u003e\n  \u003cli\u003eDay-to-day use in heavy traffic or hilly terrain, where added cooling helps maintain stable transmission temps\u003c\/li\u003e\n  \u003cli\u003eUpgrade to manage heat during extended idle or slow-speed towing scenarios common in camping or construction work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation and expectations\u003c\/h3\u003e\n\u003cp\u003eDesigned for straightforward mounting, the kit includes all necessary hardware for a secure, leak-free setup. While it enhances cooling capacity, individual results depend on the vehicle, towing conditions, and installation quality. Consider this kit as a practical add-on option for improved heat rejection rather than a guaranteed outcome.\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: What vehicles is the Hayden 678 Rapid-Cool compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed as an add-on for pickups, vans, Class C motorhomes, and travel trailers up to 24 feet, with GVWR up to 24,000 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cooler a direct OE replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This is an add-on rapid-cooler kit intended to complement the factory cooling system.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hayden Automotive","offers":[{"title":"Default Title","offer_id":42495091834965,"sku":"B000C3DDKO","price":85.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/hayden-678-rapid-cool-front-view.jpg?v=1778671396","url":"https:\/\/plentytorque.co.uk\/products\/hayden-automotive-678-universal-rapid-cool-transmission-cooler-kit-9-5-x-11-not-oe-replacement","provider":"PlentyTorque","version":"1.0","type":"link"}