{"product_id":"yamaha-gear-64j-45560-00-00","title":"Yamaha - Gear - 64J-45560-00-00","description":"\u003ch2 data-section-id=\"3z3los\" data-start=\"0\" data-end=\"72\"\u003eYamaha - Gear - Lower Unit Internal Drive Component - 64J-45560-00-00\u003c\/h2\u003e\n\u003chr data-start=\"74\" data-end=\"77\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"79\" data-end=\"90\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"91\" data-end=\"494\"\u003eWhen you’re inside a lower unit, gears are where everything either works perfectly—or doesn’t. I’ve seen worn or chipped gears cause everything from noise to complete loss of drive. This Yamaha gear is built to mesh clean and run smooth, which is exactly what you want when putting a gearcase back together. It’s one of those parts you replace right the first time so you don’t have to go back in later.\u003c\/p\u003e\n\u003chr data-start=\"496\" data-end=\"499\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"501\" data-end=\"516\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"517\" data-end=\"881\"\u003e\n\u003cli data-section-id=\"fbrcfj\" data-start=\"517\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"519\" data-end=\"541\"\u003ePrecision Gear Cut\u003c\/strong\u003e – Designed for smooth meshing and efficient power transfer.\u003c\/li\u003e\n\u003cli data-section-id=\"195husb\" data-start=\"604\" data-end=\"696\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"621\"\u003eOEM Fitment\u003c\/strong\u003e – Matches Yamaha specifications for exact alignment within the gearcase.\u003c\/li\u003e\n\u003cli data-section-id=\"ouxilq\" data-start=\"697\" data-end=\"792\"\u003e\n\u003cstrong data-start=\"699\" data-end=\"730\"\u003eHardened Metal Construction\u003c\/strong\u003e – Built to handle constant load and high torque conditions.\u003c\/li\u003e\n\u003cli data-section-id=\"1uwmg3t\" data-start=\"793\" data-end=\"881\"\u003e\n\u003cstrong data-start=\"795\" data-end=\"817\"\u003eReliable Operation\u003c\/strong\u003e – Helps maintain quiet and consistent lower unit performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"883\" data-end=\"886\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"888\" data-end=\"918\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"919\" data-end=\"1122\"\u003eFits Yamaha outboard engines that utilize compatible internal lower unit gearing systems. Commonly used in mid- to high-horsepower applications across offshore boats, bay boats, and recreational vessels.\u003c\/p\u003e\n\u003chr data-start=\"1124\" data-end=\"1127\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1129\" data-end=\"1135\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1137\" data-end=\"1274\"\u003e\u003cstrong data-start=\"1137\" data-end=\"1185\"\u003eQ: What are signs of a worn or damaged gear?\u003c\/strong\u003e\u003cbr data-start=\"1185\" data-end=\"1188\"\u003e\u003cstrong data-start=\"1188\" data-end=\"1194\"\u003eA:\u003c\/strong\u003e Grinding noise, vibration, or slipping in gear are common signs of gear damage.\u003c\/p\u003e\n\u003cp data-start=\"1276\" data-end=\"1441\"\u003e\u003cstrong data-start=\"1276\" data-end=\"1337\"\u003eQ: Can I replace just one gear or should I replace a set?\u003c\/strong\u003e\u003cbr data-start=\"1337\" data-end=\"1340\"\u003e\u003cstrong data-start=\"1340\" data-end=\"1346\"\u003eA:\u003c\/strong\u003e It’s best to inspect all related gears—uneven wear can cause problems if only one is replaced.\u003c\/p\u003e\n\u003cp data-start=\"1443\" data-end=\"1589\"\u003e\u003cstrong data-start=\"1443\" data-end=\"1499\"\u003eQ: What usually causes gear failure in a lower unit?\u003c\/strong\u003e\u003cbr data-start=\"1499\" data-end=\"1502\"\u003e\u003cstrong data-start=\"1502\" data-end=\"1508\"\u003eA:\u003c\/strong\u003e Low or contaminated gear oil, impact damage, or long-term wear under heavy load.\u003c\/p\u003e\n\u003cp data-start=\"1591\" data-end=\"1753\"\u003e\u003cstrong data-start=\"1591\" data-end=\"1652\"\u003eQ: How important is gear oil maintenance for these parts?\u003c\/strong\u003e\u003cbr data-start=\"1652\" data-end=\"1655\"\u003e\u003cstrong data-start=\"1655\" data-end=\"1661\"\u003eA:\u003c\/strong\u003e It’s critical—clean, properly filled gear oil is what keeps gears lubricated and protected.\u003c\/p\u003e\n\u003cp data-start=\"1755\" data-end=\"1944\"\u003e\u003cstrong data-start=\"1755\" data-end=\"1807\"\u003eQ: Is installing internal gears a difficult job?\u003c\/strong\u003e\u003cbr data-start=\"1807\" data-end=\"1810\"\u003e\u003cstrong data-start=\"1810\" data-end=\"1816\"\u003eA:\u003c\/strong\u003e It requires experience with gearcase assembly and proper shimming, so it’s usually a job for someone familiar with lower units.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46938690093347,"sku":"64J-45560-00-00","price":336.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV227784.jpg?v=1698806279","url":"https:\/\/partsvu.com\/en-mx\/products\/yamaha-gear-64j-45560-00-00","provider":"PartsVu","version":"1.0","type":"link"}