{"product_id":"1277674-mercury-mercruiser-washer-genuine-quicksilver-oem-part","title":"1277674 Mercury MerCruiser Washer | 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 Alpha One Gen II Shift Shaft Rubber Washer - Part Number: 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Quicksilver rubber washer used in MerCruiser Alpha One Gen II shift shaft \/ gearcase service applications. This washer is used on Gen II drive assemblies where the diagram specifies 12-77674 and helps provide the correct sealing and spacing around the shift shaft area.\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 rubber washer\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in Alpha One Gen II shift shaft \/ gearcase service applications\n\u003c\/p\u003e\n\u003cp\u003e\n • 1\/8\" rubber washer specification\n\u003c\/p\u003e\n\u003cp\u003e\n • Used on Gen II drives from serial 0L100040 and up where specified\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 • 12-77674 current OEM service reference\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n • 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • 77674\n\u003c\/p\u003e\n\u003cp\u003e\n • 1277674\n\u003c\/p\u003e\n\u003cp\u003e\n • MER12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • Quicksilver 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-2316-9\n\u003c\/p\u003e\n\u003cp\u003e\n • GLM-style cross-reference: 30030\n\u003c\/p\u003e\n\u003cp\u003e\n • Redline \/ aftermarket reference: 62-7646\n\u003c\/p\u003e\n\u003cp\u003e\n • Aftermarket reference: 2721-1701\n\u003c\/p\u003e\n\u003cp\u003e\n • Aftermarket reference: 27211701\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 • MerCruiser Alpha One Gen II shift shaft assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One Gen II gearcase service applications\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser shift shaft washer service on compatible Gen II ratios\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n • Drive models:\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One Gen II - serial 0L100040 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Alpha One Gen II ratio 1.47:1 applications where 12-77674 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Alpha One Gen II ratio 1.62:1 applications where 12-77674 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Alpha One Gen II ratio 1.81:1 applications where 12-77674 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Alpha One Gen II ratio 1.94:1 applications where 12-77674 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One Gen II lower shift shaft \/ gearcase assemblies requiring rubber washer 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • Drive Type: MerCruiser Alpha One Gen II\n\u003c\/p\u003e\n\u003cp\u003e\n • Serial Range: 0L100040 and up where the shift shaft \/ gearcase diagram specifies 12-77674\n\u003c\/p\u003e\n\u003cp\u003e\n • System Type: Shift shaft \/ gearcase rubber washer\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 rubber washer provides correct spacing and sealing around the shift shaft area, helping protect the gearcase assembly from incorrect hardware movement or water entry at the service point.\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n • Washer missing during shift shaft service\n\u003c\/p\u003e\n\u003cp\u003e\n • Water entry around shift shaft service area\n\u003c\/p\u003e\n\u003cp\u003e\n • Rubber washer cracked, flattened or hardened\n\u003c\/p\u003e\n\u003cp\u003e\n • Incorrect shift shaft spacing after reassembly\n\u003c\/p\u003e\n\u003cp\u003e\n • Replacement required during Alpha One Gen II gearcase service\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":53388124979492,"sku":"127944G","price":2.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_7762f9ac-e2e0-4435-90eb-e499290380c7.jpg?v=1777211441","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/1277674-mercury-mercruiser-washer-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}