{"product_id":"18-4218-for-mercruiser-22-16951a1-16951q1-cylinder-block-drain-tap-1-4npt-md","title":"18-4218 For Mercruiser 22-16951A1,16951Q1 Cylinder Block Drain Tap 1\/4NPT MD","description":"\u003ch2\u003e18-4218 Cylinder Block Drain Tap for Mercruiser\u003c\/h2\u003e\u003cp\u003eThis 18-4218 cylinder block drain tap is a replacement service part for Mercruiser engines and is cross-referenced to OEM numbers 22-16951A1 and 22-16951Q1.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis cylinder block drain tap is a 1\/4 NPT service component for draining coolant from the block. It is designed for Mercruiser applications with OEM cross-reference numbers 22-16951A1 and 22-16951Q1. This 18-4218 drain tap supports cooling system maintenance and winterization.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4 NPT cylinder block drain tap for engine service\u003c\/li\u003e\n\u003cli\u003eReplacement part for Mercruiser drain tap applications\u003c\/li\u003e\n\u003cli\u003eCross-referenced to OEM numbers 22-16951A1 and 22-16951Q1\u003c\/li\u003e\n\u003cli\u003eDesigned for standard cylinder block drain openings\u003c\/li\u003e\n\u003cli\u003eSupports coolant removal during marine engine maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDraining coolant from cylinder blocks during cooling system service\u003c\/li\u003e\n\u003cli\u003eWinterizing marine engines by removing trapped water from the block\u003c\/li\u003e\n\u003cli\u003eMaintaining stern drive power packages in marine repair shops\u003c\/li\u003e\n\u003cli\u003eReplacing worn drain taps on engine blocks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18-4218, 22-16951A1, 22-16951Q1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder block drain tap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Mercruiser engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What are the OEM cross-reference numbers for this drain tap? \u003cstrong\u003eA:\u003c\/strong\u003e This drain tap uses OEM cross-reference numbers 22-16951A1 and 22-16951Q1 for Mercruiser applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is 1\/4 NPT the correct thread size? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this cylinder block drain tap has a 1\/4 NPT thread. Confirm the port size before installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":45556594278486,"sku":"ZZ3E00864","price":30.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_ee802a05-a55f-41b1-9ca0-120ff638e12e.jpg?v=1789213792","url":"https:\/\/www.solidspare.com\/products\/18-4218-for-mercruiser-22-16951a1-16951q1-cylinder-block-drain-tap-1-4npt-md","provider":"Solid Spare","version":"1.0","type":"link"}