{"product_id":"water-shutter-exhaust-flapper-for-mercruiser-3-0l-3-7l-replaces-18-2727-60930","title":"Water Shutter Exhaust Flapper for Mercruiser 3.0L, 3.7L Replaces 18-2727 60930","description":"\u003ch2\u003eWater Shutter Exhaust Flapper for Mercruiser\u003c\/h2\u003e\u003cp\u003eThis water shutter exhaust flapper for Mercruiser 3.0L and 3.7L engines replaces OEM cross-reference numbers 18-2727 and 60930, controlling the flow of exhaust and water through the marine exhaust system.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe water shutter exhaust flapper for Mercruiser is a direct replacement marine exhaust component that stops water from surging back into the cylinders when the engine shuts off. This water shutter exhaust flapper for Mercruiser 3.0L and 3.7L models works as a one-way gate in the exhaust outlet, and it is made for boat owners and marine technicians replacing worn flappers with OEM cross-reference numbers 18-2727 or 60930.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplaces OEM cross-reference numbers 18-2727 and 60930\u003c\/li\u003e\n\u003cli\u003eDesigned for Mercruiser 3.0L and 3.7L engines\u003c\/li\u003e\n\u003cli\u003eFunctions as a water shutter in the exhaust outlet\u003c\/li\u003e\n\u003cli\u003eHelps prevent water backflow into the manifold and cylinders\u003c\/li\u003e\n\u003cli\u003eDirect replacement for marine exhaust flapper applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercruiser 3.0L\u003c\/li\u003e\n\u003cli\u003efor Mercruiser 3.7L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUsed in Mercruiser marine exhaust outlets to keep water from re-entering the engine\u003c\/li\u003e\n\u003cli\u003eCommonly replaced during exhaust elbow or manifold service on 3.0L and 3.7L engines\u003c\/li\u003e\n\u003cli\u003eHelps maintain one-way exhaust flow after engine shutdown\u003c\/li\u003e\n\u003cli\u003eInstalled in raw water cooled exhaust systems to prevent backflow\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\u003e18-2727, 60930\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMercruiser 3.0L, 3.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWater Shutter Exhaust Flapper\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 does this water shutter exhaust flapper do? \u003cstrong\u003eA:\u003c\/strong\u003e It acts as a flapper in the exhaust outlet to block water from flowing back into the manifold and engine after shutdown.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this a direct replacement part? \u003cstrong\u003eA:\u003c\/strong\u003e It is designed for Mercruiser 3.0L and 3.7L engines and is listed as a replacement for cross-reference numbers 18-2727 and 60930.\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":45556609777750,"sku":"ZZ3E01261","price":37.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_f88be1e9-d128-43dc-88c5-842cc04a5ade.jpg?v=1789217242","url":"https:\/\/www.solidspare.com\/products\/water-shutter-exhaust-flapper-for-mercruiser-3-0l-3-7l-replaces-18-2727-60930","provider":"Solid Spare","version":"1.0","type":"link"}