{"product_id":"144791-mercury-mercruiser-diaphragm-genuine-quicksilver-oem-part","title":"144791 Mercury MerCruiser Diaphragm | 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 Poppet Valve Diaphragm - Part Number: 14479 1\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Quicksilver diaphragm used in Mercury V6 cooling system poppet \/ pressure relief valve assemblies. This diaphragm is used on selected Mercury 2.5L EFI, DFI, Pro XS, XS, Jet and V6 outboards where the cooling-system pressure relief valve diagram specifies 14479 1.\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 diaphragm\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 14479 1\n\u003c\/p\u003e\n\u003cp\u003e\n • Also commonly written as 144791\n\u003c\/p\u003e\n\u003cp\u003e\n • Supersedes earlier 14479 reference\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in Mercury V6 poppet \/ cooling system pressure relief assemblies\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 • 14479 1 → Supersedes 14479\n\u003c\/p\u003e\n\u003cp\u003e\n • 14479 earlier diaphragm 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 • 14479 1\n\u003c\/p\u003e\n\u003cp\u003e\n • 144791\n\u003c\/p\u003e\n\u003cp\u003e\n • 14479\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-8M0046715 related gasket set reference in some 2.5L powerhead assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • 828343A05 related exhaust divider plate kit reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 814754 related seal reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 19050 6 related gasket reference\n\u003c\/p\u003e\n\u003cp\u003e\n • Poppet valve diaphragm reference for 2.5L Mercury V6 cooling-system assemblies\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 2.5L V6 cooling system pressure relief \/ poppet valve assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury EFI \/ DFI \/ Optimax \/ XS \/ Pro XS poppet valve diaphragm service\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury Jet and performance V6 outboard cooling systems where 144791 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 110 Jet 2.5L - serial 1B690542 to 1B974227\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 135HP V6 2.5L - serial 0T178500 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 135HP V6 2.5L - serial 0T801000 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 135HP V6 2.5L - serial 1B227000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 135HP V6 2.5L - serial 1B417702 to 1B737495\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 140 Jet - serial 0G960500 to 0T178499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150 Pro XS 2.5L - serial 1B690542 to 2B535572\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150HP V6 2.5L - serial 0T178500 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150HP V6 2.5L - serial 0T801000 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150HP V6 2.5L - serial 1B227000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150HP V6 2.5L - serial 1B417702 to 1B580029\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175 Pro XS 2.5L - serial 1B516339 to 2B535624\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175HP V6 2.5L - serial 0T178500 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175HP V6 2.5L - serial 0T801000 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175HP V6 2.5L - serial 1B227000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175HP V6 2.5L - serial 1B417702 to 1B508457\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 XS 2.5L - serial 0T235000 to 0T818180\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 XS 2.5L - serial 0T818181 to 1E000796\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 XS 2.5L - serial 1E000797 to 1E002110\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 XS 2.5L ROS - serial 1E050852 to 1E053876\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 200 XS SST 2.5L - serial 1E050629 to 1E053875\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225X EFI Pro Max - serial 0T430254 to 0T819605\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-135 - serial 0G960500 to 0T178499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-140 International - serial 0T178500 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-150 - serial 0G960500 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-150 EFI 2.5L - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-150 EFI 2.5L - serial 0T801000 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-150 EFI 2.5L - serial 1B227000 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-175 EFI 2.5L - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-200 - serial 0G960500 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-200 EFI 2.5L - serial 0T409000 to 0T800999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-200 EFI 2.5L - serial 0T801000 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-200 EFI 2.5L - serial 1B227000 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury XR-6 \/ Magnum III - serial 0G960500 to 1B226999\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: commonly 110 Jet - 225HP where specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury 2.5L V6 EFI \/ DFI \/ Optimax \/ performance outboard\n\u003c\/p\u003e\n\u003cp\u003e\n • System Type: Cooling system poppet \/ pressure relief valve diaphragm\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 diaphragm forms part of the poppet \/ pressure relief valve assembly. It responds to cooling-system pressure and helps regulate water flow through the engine at different RPM and load conditions.\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 • Overheating at idle or high RPM\n\u003c\/p\u003e\n\u003cp\u003e\n • Weak or inconsistent cooling water pressure\n\u003c\/p\u003e\n\u003cp\u003e\n • Diaphragm torn, stiff or distorted\n\u003c\/p\u003e\n\u003cp\u003e\n • Water leakage around poppet valve cover\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine temperature fluctuating under load\n\u003c\/p\u003e\n\u003cp\u003e\n • Cooling-system service required after salt or debris build-up\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":53388014485796,"sku":"729031T","price":36.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_96d59182-cf5e-4b53-9b3e-2f533c08c14a.jpg?v=1777210578","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/144791-mercury-mercruiser-diaphragm-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}