{"product_id":"sierra-18-1844k-dry-joint-exhaust-spacer-kit-3-in","title":"Sierra 18-1844K 3 In. Dry Joint Exhaust Spacer Kit (Restricted)","description":"\u003cp class=\"nvn-hero\"\u003eThe Sierra 18-1844K is a 3-inch dry joint exhaust spacer kit built for restricted-cooling V-6 and V-8 sterndrive and inboard setups. It raises the riser to keep exhaust water where it belongs, and it ships with the gasket, bolts, and hardware you need to bolt it on and go.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf you're rigging or servicing a V-6 or V-8 sterndrive or inboard, this Sierra 18-1844K spacer kit is the part that sits between your exhaust manifold and the riser. It's a 3-inch dry joint spacer, which means it keeps the cooling water from crossing the manifold-to-riser joint. That dry joint design is what protects the engine from reversion, where water backs up toward the cylinders during shutdown.\u003c\/p\u003e\n\u003cp\u003eThis one is the restricted cooling version. It fits 2004 through 2016 sterndrive V-6 and V-8 engines in the 305, 350, and 377 CID range, plus 2002 through 2016 inboard V-8 engines at 350 and 377 CID, all non-EC. If your engine is on that list, this is a direct-fit replacement. If it isn't, check the height and cooling type before you order, because spacer kits aren't interchangeable across every block.\u003c\/p\u003e\n\u003cp\u003eEverything you need to bolt it up comes in the box. You get the spacer, a fresh gasket, and the bolts and hardware. We'd swap the gasket any time this joint comes apart, so a kit like this saves you a second trip to the parts counter.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e3-inch spacer height sets the correct exhaust riser standoff for your manifold\u003c\/li\u003e\n  \u003cli\u003eDry joint design keeps cooling water from crossing the manifold-to-riser joint, guarding against reversion\u003c\/li\u003e\n  \u003cli\u003eRestricted cooling configuration matched to the listed non-EC V-6 and V-8 applications\u003c\/li\u003e\n  \u003cli\u003eFits 2004-2016 sterndrive V-6\/V-8 (305\/350\/377 CID) and 2002-2016 inboard V-8 (350\/377 CID) engines\u003c\/li\u003e\n  \u003cli\u003eIncludes gasket, bolts, and mounting hardware for a complete install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sierra reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat engines does the Sierra 18-1844K fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for 2004 through 2016 sterndrive V-6 and V-8 engines at 305, 350, and 377 CID, plus 2002 through 2016 inboard V-8 engines at 350 and 377 CID, all in the non-EC versions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does dry joint mean?\u003c\/summary\u003e\n    \u003cp\u003eA dry joint keeps cooling water from passing across the manifold-to-riser connection. It helps stop water from working its way back toward the exhaust valves after you shut the engine down.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat comes in the kit?\u003c\/summary\u003e\n    \u003cp\u003eYou get the 3-inch spacer, a new gasket, and the bolts and hardware you need to mount it. There's nothing else to buy to complete the joint.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the restricted cooling version for?\u003c\/summary\u003e\n    \u003cp\u003eRestricted cooling meters the water flow through the exhaust for the non-EC applications listed. Make sure your setup calls for the restricted version and not a full-flow spacer before you order.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow tall is this spacer?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 3-inch spacer. Height matters on these kits, so confirm your current spacer height before swapping if you aren't sure.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eFor Use With 2004-2016 Sterndrive V-6\/V-8 (305\/350\/377 CID) Non-EC Engines And 2002-2016 Inboard V-8 (350\/377 CID) Non-EC Engines; 3 Inch; Restricted Cooling; With Gasket\/Bolts\/Hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e18-1844K\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e808282383206\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSpacer Height\u003c\/th\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCooling Type\u003c\/th\u003e\n\u003ctd\u003eRestricted Cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eJoint Type\u003c\/th\u003e\n\u003ctd\u003eDry Joint\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eIncluded Hardware\u003c\/th\u003e\n\u003ctd\u003eGasket, bolts, and hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSterndrive Compatibility\u003c\/th\u003e\n\u003ctd\u003e2004-2016 V-6\/V-8 (305\/350\/377 CID) Non-EC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInboard Compatibility\u003c\/th\u003e\n\u003ctd\u003e2002-2016 V-8 (350\/377 CID) Non-EC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What engines does the Sierra 18-1844K fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for 2004 through 2016 sterndrive V-6 and V-8 engines at 305, 350, and 377 CID, plus 2002 through 2016 inboard V-8 engines at 350 and 377 CID, all in the non-EC versions.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does dry joint mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A dry joint keeps cooling water from passing across the manifold-to-riser connection. It helps stop water from working its way back toward the exhaust valves after you shut the engine down.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What comes in the kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You get the 3-inch spacer, a new gasket, and the bolts and hardware you need to mount it. There's nothing else to buy to complete the joint.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the restricted cooling version for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Restricted cooling meters the water flow through the exhaust for the non-EC applications listed. Make sure your setup calls for the restricted version and not a full-flow spacer before you order.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How tall is this spacer?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 3-inch spacer. Height matters on these kits, so confirm your current spacer height before swapping if you aren't sure.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sierra Marine","offers":[{"title":"Default Title","offer_id":44788450984029,"sku":"2007431","price":509.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_d8b79e41-571c-42dc-8d67-c1adbe10ae8f.jpg?v=1785021101","url":"https:\/\/nvnmarine.com\/products\/sierra-18-1844k-dry-joint-exhaust-spacer-kit-3-in","provider":"NVN Marine","version":"1.0","type":"link"}