{"product_id":"sea-doo-open-loop-cooling-kit","title":"Sea-Doo Open Loop Cooling Kit | 230\/300 1630 ACE | GT40 Marine","description":"\u003cp\u003eThe factory closed-loop cooling system on Sea-Doo's 1630 ACE platform was designed for casual cruising. GT40Marine's Sea-Doo Open Loop Cooling Kit converts the head cooling path to a continuous raw-water circuit so tuned 230 and 300 HP builds can hold power longer under sustained load.\u003c\/p\u003e\n\u003cp\u003eThe kit is built around marine-grade hose, billet hardware, brass fittings, stainless clamps, and an adjustable flow regulator so you can tune cooling for warm saltwater, southern lakes, or cooler northern water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRun cooler. Hold power longer. Give your 1630 ACE build the support it needs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConverts the Sea-Doo 1630 ACE head circuit to open-loop raw-water cooling\u003c\/li\u003e\n  \u003cli\u003eHelps reduce heat soak during sustained wide-open-throttle riding\u003c\/li\u003e\n  \u003cli\u003eAdjustable flow regulator for water temperature and riding conditions\u003c\/li\u003e\n  \u003cli\u003eBillet aluminum hardware with marine-grade hose and fittings\u003c\/li\u003e\n  \u003cli\u003eSupports 230 HP, 300 HP, and 300 HP supercharged builds\u003c\/li\u003e\n  \u003cli\u003eDirect-fit layout for RXP-X, RXT-X, GTX, GTR, and GTR-X platforms\u003c\/li\u003e\n  \u003cli\u003eInstall hardware included: clamps, O-rings, fittings, zip ties, and connectors\u003c\/li\u003e\n  \u003cli\u003eBuilt and supported by GT40Marine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSea-Doo RXP-X 300\u003c\/td\u003e\n\u003ctd\u003e2018-2026\u003c\/td\u003e\n\u003ctd\u003e1630 ACE supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSea-Doo RXT-X 300\u003c\/td\u003e\n\u003ctd\u003e2018-2026\u003c\/td\u003e\n\u003ctd\u003e1630 ACE supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSea-Doo GTX 300\u003c\/td\u003e\n\u003ctd\u003e2018-2026\u003c\/td\u003e\n\u003ctd\u003e1630 ACE supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSea-Doo GTR 230\u003c\/td\u003e\n\u003ctd\u003e2018-2026\u003c\/td\u003e\n\u003ctd\u003e1630 ACE supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSea-Doo GTR-X 300\u003c\/td\u003e\n\u003ctd\u003e2018-2026\u003c\/td\u003e\n\u003ctd\u003e1630 ACE supercharged\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eKit contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBillet machined cover plate \/ housing\u003c\/li\u003e\n  \u003cli\u003eMarine-grade reinforced cooling hose\u003c\/li\u003e\n  \u003cli\u003eAdjustable flow regulator valve\u003c\/li\u003e\n  \u003cli\u003eBrass 90 degree barb fitting\u003c\/li\u003e\n  \u003cli\u003eHose barbs and connectors\u003c\/li\u003e\n  \u003cli\u003eStainless hose clamps\u003c\/li\u003e\n  \u003cli\u003eMarine-grade O-rings\u003c\/li\u003e\n  \u003cli\u003eZip ties and installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eGT40-OLC-SD300\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine platform\u003c\/th\u003e\n\u003ctd\u003eSea-Doo 1630 ACE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSupported power levels\u003c\/th\u003e\n\u003ctd\u003e230 HP, 300 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eShipping weight\u003c\/th\u003e\n\u003ctd\u003e4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eWhat does open-loop cooling do?\u003c\/h4\u003e\n\u003cp\u003eIt routes raw water through the head cooling path to add cooling capacity and reduce heat soak on hard-ridden 1630 ACE builds.\u003c\/p\u003e\n\u003ch4\u003eDoes it add horsepower by itself?\u003c\/h4\u003e\n\u003cp\u003eNot directly. It supports the engine so tuned builds can hold their power more consistently under heat and sustained load.\u003c\/p\u003e\n\u003ch4\u003eIs it safe for saltwater?\u003c\/h4\u003e\n\u003cp\u003eYes, with disciplined post-ride flushing. The kit uses marine-grade hose, billet hardware, brass fittings, and stainless clamps.\u003c\/p\u003e\n\u003ch4\u003eCan it be reversed?\u003c\/h4\u003e\n\u003cp\u003eYes. The kit is a conversion parts package and does not require permanent block or head casting modification.\u003c\/p\u003e","brand":"GT40 Marine","offers":[{"title":"Default Title","offer_id":44391867056170,"sku":"GT40-OLC-SD300","price":384.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/7071\/7738\/files\/gt40-olc-sd300-hero-v1.jpg?v=1779568968","url":"https:\/\/checkout.gt40marine.com\/products\/sea-doo-open-loop-cooling-kit","provider":"GT40 Marine","version":"1.0","type":"link"}