{"product_id":"sierra-18-4224-drain-elbow-assembly-3-4-inch-npt-exhaust-manifold-drain-replaces-mercruiser-22-806926a1-22-862210a01-fits-mercruiser-v-6-v-8-i-o-cooling-systems","title":"Sierra 18-4224 Drain Elbow Assembly, Replaces Mercruiser 22-806926A1, 3\/4 Inch NPT","description":"\u003cp\u003eThe Sierra 18-4224 Drain Elbow Assembly is a stainless steel replacement fitting used in the cooling system of MerCruiser I\/O sterndrive engines. It threads into the exhaust manifold or manifold gasket location using a 3\/4 inch NPT thread and provides the drain connection point for the raw water cooling circuit, allowing water to be routed away from the manifold during operation or drained from the block during winterization and service.\u003c\/p\u003e\u003cp\u003eBuilt from stainless steel with a machined finish, the elbow is designed to resist the corrosion and heat exposure typical of the exhaust manifold area on gasoline sterndrive engines. It is finished in gray and supplied as a single-piece assembly, making it a straightforward drop-in replacement when an original elbow has corroded, cracked, or seized.\u003c\/p\u003e\u003cp\u003eThis elbow is applicable to MerCruiser I\/O cooling systems and is built to meet or exceed the performance of the original equipment part it replaces, giving boat owners and marine technicians a reliable way to restore the manifold drain connection without sourcing a used or hard-to-find factory part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4224\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Drain Elbow Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/4 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\/Finish:\u003c\/strong\u003e Gray, machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 7.25 x 5.63 x 2.13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e I\/O - MerCruiser cooling system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282125141\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 22-806926A1, 22-862210A01\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for MerCruiser I\/O sterndrive engines in the cooling system application, including MCM\/MIE V-6 and V-8 engines with center rise exhaust manifolds.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e22-806926A1\u003c\/li\u003e\n\u003cli\u003e22-862210A01\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-4224 Drain Elbow Assembly replace?\u003c\/strong\u003e It is a direct replacement for MerCruiser exhaust manifold drain elbows 22-806926A1 and 22-862210A01, so any boat currently fitted with one of those OEM elbows can use the Sierra 18-4224 instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does this drain elbow use?\u003c\/strong\u003e The Sierra 18-4224 uses a 3\/4 inch NPT thread, matching the original MerCruiser manifold drain connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the 18-4224 drain elbow designed for?\u003c\/strong\u003e This drain elbow fits MerCruiser I\/O sterndrive engines in the cooling system, including MCM\/MIE V-6 and V-8 engines with center rise exhaust manifolds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-4224 made from?\u003c\/strong\u003e It is machined from stainless steel with a gray finish, giving it resistance to the heat and corrosion found at the exhaust manifold drain location.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4224 drain elbow weigh?\u003c\/strong\u003e The Sierra 18-4224 Drain Elbow Assembly weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this drain elbow?\u003c\/strong\u003e The Sierra 18-4224 measures 7.25 x 5.63 x 2.13 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4224 a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a Sierra-branded replacement part manufactured to meet or exceed the performance of the original MerCruiser equipment it replaces, rather than a factory MerCruiser part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pieces come in the 18-4224 assembly?\u003c\/strong\u003e The Sierra 18-4224 ships as a single-piece drain elbow assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does the 18-4224 drain elbow install on the engine?\u003c\/strong\u003e It threads into the exhaust manifold drain location using its 3\/4 inch NPT fitting, forming part of the raw water cooling circuit on MerCruiser I\/O engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace a drain elbow like the 18-4224?\u003c\/strong\u003e Drain elbows in the manifold cooling circuit are prone to corrosion over time; the Sierra 18-4224 provides a stainless steel replacement when the original elbow has corroded, cracked, or seized.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988171796699,"sku":"SIE-18-4224","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4224_lg__09267.1558126798.500.750.jpg?v=1785188042","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-4224-drain-elbow-assembly-3-4-inch-npt-exhaust-manifold-drain-replaces-mercruiser-22-806926a1-22-862210a01-fits-mercruiser-v-6-v-8-i-o-cooling-systems","provider":"Good Vibes Marina","version":"1.0","type":"link"}