{"product_id":"128m0187157-mercury-mercruiser-seal-genuine-quicksilver-oem-part","title":"128M0187157 Mercury MerCruiser Seal | 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 Blue Gear Lube Drain \/ Fill Screw Seal - Part Number: 12-8M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Quicksilver blue seal used on Mercury, Mariner and MerCruiser gear lube drain and fill screws. This is the current service replacement for earlier 12-19183-3 style drain \/ vent screw seals and is used under the 3\/8\"-16 gearcase or sterndrive plug.\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 blue gear lube seal\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct current Mercury part number 12-8M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n • Supersedes earlier 12-19183-3 \/ 12-191833 drain screw seal references\n\u003c\/p\u003e\n\u003cp\u003e\n • Used with 3\/8\"-16 drain \/ fill \/ vent screws\n\u003c\/p\u003e\n\u003cp\u003e\n • Important replacement during every gear lube service\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 • 12-8M0187157 → Supersedes 12-19183-3\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183-3 → Supersedes 12-19183-2\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183-2 → Supersedes 12-19183\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183 earlier OEM reference\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-8M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n • 128M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n • MER12-8M0187157\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183-3\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-191833\n\u003c\/p\u003e\n\u003cp\u003e\n • 191833\n\u003c\/p\u003e\n\u003cp\u003e\n • 12191833\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183-2\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-191832\n\u003c\/p\u003e\n\u003cp\u003e\n • 191832\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-19183\n\u003c\/p\u003e\n\u003cp\u003e\n • 19183\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-20260\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-2945\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-2244\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-2945-9\n\u003c\/p\u003e\n\u003cp\u003e\n • Mallory: 9-60101\n\u003c\/p\u003e\n\u003cp\u003e\n • Mallory: 9-60102\n\u003c\/p\u003e\n\u003cp\u003e\n • Chrysler \/ Force: F50556\n\u003c\/p\u003e\n\u003cp\u003e\n • Chrysler \/ Force: F8077\n\u003c\/p\u003e\n\u003cp\u003e\n • Chrysler \/ Force: F8186\n\u003c\/p\u003e\n\u003cp\u003e\n • OMC \/ Johnson \/ Evinrude: 0307552\n\u003c\/p\u003e\n\u003cp\u003e\n • GLM-style replacement: 27217 \/ 2717-8001 cross-reference family\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 • Mercury \/ Mariner lower-unit drain and vent screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser upper and lower sterndrive gear lube drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury sea-water pump assemblies where washer 12-8M0187157 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine \/ drive models:\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One stern drive drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One Gen II stern drive drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Bravo One stern drive drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Bravo Two stern drive drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Bravo Three stern drive drain \/ fill screw applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Bravo XR \/ X drive drain \/ fill screw applications where 12-8M0187157 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser sea-water pump assembly - serial 0L000768 to 0L001772 where washer \/ seal 12-8M0187157 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury Mark 55AE \/ 55AM \/ 58AE \/ 58E gear housing applications where 12-8M0187157 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 7.5HP outboard gear housing assembly - serial 2529895 to 3274632\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 40HP 4-cylinder gear housing - serial 0C159200 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 70HP \/ 75HP \/ 80HP \/ 90HP gear housing applications using the Mercury 3\/8\"-16 grease filler and vent hole screw\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 115 EFI 4-stroke gear housing - serial 0T178500 to 0T800999 where the blue drain screw seal is shown\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-200 gear housing - serial 0G303046 to 0G760299\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V-225 \/ 225 DFI gear housing - serial 0G760300 to 0G960499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 850 85HP 4-cylinder gear housing - Australian serial 8043775 to 8050199\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner outboards using Mercury 3\/8\"-16 grease filler and vent hole screws\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: commonly 6HP - 225HP+ Mercury \/ Mariner outboards, plus MerCruiser sterndrive applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine \/ Drive Type: Mercury \/ Mariner outboard gearcase and MerCruiser sterndrive gear housing sealing hardware\n\u003c\/p\u003e\n\u003cp\u003e\n • System Type: Gear lube drain \/ fill \/ vent screw seal\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 This seal sits under the drain, fill or vent screw to seal the gearcase or sterndrive housing. It prevents gear oil from leaking out and helps stop water from entering through the screw seat.\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n • Gear oil leaking from the drain \/ vent screw\n\u003c\/p\u003e\n\u003cp\u003e\n • Milky or contaminated gear lube\n\u003c\/p\u003e\n\u003cp\u003e\n • Flattened or split seal after service\n\u003c\/p\u003e\n\u003cp\u003e\n • Seal missing after gear oil change\n\u003c\/p\u003e\n\u003cp\u003e\n • Failed pressure or vacuum test at the drain \/ fill screw\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":53388123078948,"sku":"J771720","price":2.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_fd83f286-1083-4c1f-ba8b-d4e144fd5b71.jpg?v=1777211365","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/128m0187157-mercury-mercruiser-seal-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}