{"product_id":"yamaha-gear-1-assy-679-45560-00-00","title":"Yamaha - Gear 1 assy - 679-45560-00-00","description":"\u003ch2 data-section-id=\"1kdci64\" data-start=\"0\" data-end=\"67\"\u003eYamaha Gear 1 Assy - Lower Unit Gear Component - 679-45560-00-00\u003c\/h2\u003e\n\u003chr data-start=\"69\" data-end=\"72\"\u003e\n\u003ch2 data-section-id=\"6lznae\" data-start=\"74\" data-end=\"87\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"89\" data-end=\"534\"\u003eWhen you’re dealing with power transfer issues in the lower unit, gears like this are usually where the problem shows up. This assembly plays a key role in transferring engine power down to the prop, and if it’s worn, you’ll feel it in performance or hear it under load. I’ve seen gears like this cause noise, slipping, or loss of efficiency when they start to go. When everything’s in good shape, power transfers clean and the boat runs strong.\u003c\/p\u003e\n\u003chr data-start=\"536\" data-end=\"539\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"541\" data-end=\"558\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"560\" data-end=\"1042\"\u003e• \u003cstrong data-start=\"562\" data-end=\"591\"\u003ePower Transfer Function –\u003c\/strong\u003e Transfers engine power through the lower unit to drive the propeller.\u003cbr data-start=\"661\" data-end=\"664\"\u003e• \u003cstrong data-start=\"666\" data-end=\"694\"\u003eGenuine Yamaha Fitment –\u003c\/strong\u003e Designed to match factory gearcase specifications precisely.\u003cbr data-start=\"755\" data-end=\"758\"\u003e• \u003cstrong data-start=\"760\" data-end=\"788\"\u003eSmooth Gear Engagement –\u003c\/strong\u003e Helps reduce noise and ensures efficient operation under load.\u003cbr data-start=\"851\" data-end=\"854\"\u003e• \u003cstrong data-start=\"856\" data-end=\"888\"\u003eHigh Strength Construction –\u003c\/strong\u003e Built to handle torque and continuous use in marine conditions.\u003cbr data-start=\"952\" data-end=\"955\"\u003e• \u003cstrong data-start=\"957\" data-end=\"988\"\u003ePrecision Machined Design –\u003c\/strong\u003e Ensures proper alignment and long-term reliability.\u003c\/p\u003e\n\u003chr data-start=\"1044\" data-end=\"1047\"\u003e\n\u003ch2 data-section-id=\"1b7w7ff\" data-start=\"1049\" data-end=\"1081\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1083\" data-end=\"1200\"\u003eCompatible with select Yamaha outboards using this gear assembly. Verify fitment based on your specific engine model.\u003c\/p\u003e\n\u003chr data-start=\"1202\" data-end=\"1205\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1207\" data-end=\"1215\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1217\" data-end=\"1339\"\u003e\u003cstrong data-start=\"1217\" data-end=\"1263\"\u003eQ: What are signs of a worn gear assembly?\u003c\/strong\u003e\u003cbr data-start=\"1263\" data-end=\"1266\"\u003e\u003cstrong data-start=\"1266\" data-end=\"1272\"\u003eA:\u003c\/strong\u003e Grinding noises, loss of power, or unusual vibration under load.\u003c\/p\u003e\n\u003cp data-start=\"1341\" data-end=\"1472\"\u003e\u003cstrong data-start=\"1341\" data-end=\"1381\"\u003eQ: Can this affect boat performance?\u003c\/strong\u003e\u003cbr data-start=\"1381\" data-end=\"1384\"\u003e\u003cstrong data-start=\"1384\" data-end=\"1390\"\u003eA:\u003c\/strong\u003e Yes, it directly impacts how efficiently power is transferred to the propeller.\u003c\/p\u003e\n\u003cp data-start=\"1474\" data-end=\"1575\"\u003e\u003cstrong data-start=\"1474\" data-end=\"1516\"\u003eQ: Is this part inside the lower unit?\u003c\/strong\u003e\u003cbr data-start=\"1516\" data-end=\"1519\"\u003e\u003cstrong data-start=\"1519\" data-end=\"1525\"\u003eA:\u003c\/strong\u003e Yes, it’s part of the internal gearcase system.\u003c\/p\u003e\n\u003cp data-start=\"1577\" data-end=\"1689\"\u003e\u003cstrong data-start=\"1577\" data-end=\"1609\"\u003eQ: Is replacement difficult?\u003c\/strong\u003e\u003cbr data-start=\"1609\" data-end=\"1612\"\u003e\u003cstrong data-start=\"1612\" data-end=\"1618\"\u003eA:\u003c\/strong\u003e It can be more involved and usually requires lower unit disassembly.\u003c\/p\u003e\n\u003cp data-start=\"1691\" data-end=\"1809\"\u003e\u003cstrong data-start=\"1691\" data-end=\"1744\"\u003eQ: Does regular maintenance help extend its life?\u003c\/strong\u003e\u003cbr data-start=\"1744\" data-end=\"1747\"\u003e\u003cstrong data-start=\"1747\" data-end=\"1753\"\u003eA:\u003c\/strong\u003e Yes, proper lubrication and gear oil changes are key.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46938420969763,"sku":"679-45560-00-00","price":213.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV231577.jpg?v=1698805401","url":"https:\/\/partsvu.com\/en-au\/products\/yamaha-gear-1-assy-679-45560-00-00","provider":"PartsVu","version":"1.0","type":"link"}