{"product_id":"278503181-mercury-mercruiser-gasket-genuine-quicksilver-oem-part","title":"278503181 Mercury MerCruiser Gasket | Genuine Quicksilver OEM Part","description":"\u003cp\u003e\n 🔧 Product Description\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Genuine Quicksilver Thermostat Gasket - Part Number: 27-8503181\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Quicksilver thermostat gasket for Mercury V6 3.0L and 3.2L EFI \/ DFI outboards and SportJet Jet Drive applications. This gasket seals the thermostat cover area in high-output outboard cooling systems and is replaced during thermostat inspection or cooling-system service.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n ⚙️ Key Features\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Quicksilver OEM thermostat gasket\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 27-8503181\n\u003c\/p\u003e\n\u003cp\u003e\n • Used on Mercury 200HP, 225HP, 250HP and 300HP V6 EFI \/ DFI applications where specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Also used on 250 DFI Jet Drive and 250 DFI M2 Jet Drive applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Important thermostat cover gasket for 3.0L and 3.2L Mercury V6 cooling systems\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM Supersession Chain:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-8503181 current OEM service reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-8503181\n\u003c\/p\u003e\n\u003cp\u003e\n • 8503181\n\u003c\/p\u003e\n\u003cp\u003e\n • 278503181\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • No aftermarket equivalent\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🚤 Compatibility\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Commonly used on:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V6 EFI and DFI \/ OptiMax thermostat gasket applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 3.0L and 3.2L high-output outboard cooling systems where 27-8503181 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine models:\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 DFI Jet Drive powerhead - serial 0E407100 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 DFI Jet Drive pump - serial 0E407100 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 DFI M2 Jet Drive powerhead - serial 0E407100 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 DFI M2 Jet Drive pump - serial 0E407100 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Sport XS - serial 1E002584 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Sport XS 3.0L - serial 1E000797 to 1E002583\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 XS - serial 1E002584 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Sport XS - serial 1E002342 to 1E051823\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Sport XS - serial 1E051824 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 0T651945 to 0T818042\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 0T818043 to 0T997973\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 0T997974 to 1E000796\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 1E000797 to 1E002341\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 1E002342 to 1E051113\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 300X 3.0L EFI Pro Max - serial 0T235084 to 0T429939\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 300X 3.0L EFI Pro Max - serial 0T429940 to 0T999587\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 300XS 3.2L DFI - serial 1E001867 to 1E052057\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury JP 3.0L DFI - serial 0T997974 to 1E003045\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury JP 3.0L DFI - serial 1E003046 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L DFI DTS - serial 0T980000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L DFI DTS - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L DFI DTS - serial 1B504989 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L EFI - serial 0T750164 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L EFI - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L EFI - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 3.0L EFI - serial 1B504989 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI - serial 0G760300 to 0G960499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI - serial 0G960500 to 0T178499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI - serial 0T178500 to 0T598999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI - serial 0T599000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI 3.0L - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI 3.0L - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI 3.0L - serial 1B504989 to 1B912785\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 DFI 3.0L - serial 1B912786 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 Pro XS DFI 3.0L - serial 1B504989 to 1B912785\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 Pro XS DFI 3.0L - serial 1B912786 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI - serial 1B504989 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI Marathon - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 3.0L EFI SeaPro - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 DFI 3.0L - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 DFI 3.0L - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 DFI 3.0L - serial 1B504989 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Pro XS 3.0L DFI - serial 1B104549 to 1B426560\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Pro XS 3.0L DFI - serial 1B426561 to 1B752546\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Pro XS 3.0L DFI - serial 1B752547 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 3.0L EFI - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 3.0L EFI - serial 0T801000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 3.0L EFI - serial 1B417702 to 1B504988\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 3.0L EFI - serial 1B504989 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 DFI 3.0L - serial 1B528615 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Long 3.0L EFI - serial 0T861319 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Pro XS 3.0L DFI - serial 1B426561 to 1B752546\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Pro XS 3.0L DFI - serial 1B752547 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 3.0L EFI Marathon - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 3.0L EFI SeaPro - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: commonly 200HP - 300HP where specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury V6 3.0L \/ 3.2L EFI and DFI outboard\n\u003c\/p\u003e\n\u003cp\u003e\n • System Type: Thermostat gasket \/ cooling-system cover gasket\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔌 Function\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The thermostat gasket seals the thermostat cover area so the cooling system can regulate engine temperature without leakage or pressure loss at the thermostat joint.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Water leak around thermostat cover\n\u003c\/p\u003e\n\u003cp\u003e\n • Salt build-up near thermostat housing\n\u003c\/p\u003e\n\u003cp\u003e\n • Overheating or unstable operating temperature\n\u003c\/p\u003e\n\u003cp\u003e\n • Gasket tearing during thermostat service\n\u003c\/p\u003e\n\u003cp\u003e\n • Replacement required after thermostat cover removal\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 📦 Condition\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Quicksilver part\n\u003c\/p\u003e\n\u003cp\u003e\n • Brand new\n\u003c\/p\u003e\n\u003cp\u003e\n • Supplied in original or equivalent packaging\n\u003c\/p\u003e\n","brand":"Quicksilver","offers":[{"title":"Default Title","offer_id":53388154667300,"sku":"N771361","price":7.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_87980216-2ba1-4ed9-a529-c5a8fafad25d.jpg?v=1777212398","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/278503181-mercury-mercruiser-gasket-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}