{"product_id":"yamaha-lower-unit-assembly-lf300-lf350-6ax-45300-24-8d-see-description-for-applicable-models","title":"Yamaha - Lower Unit Assembly -LF300 - LF350 - 6AX-45300-24-8D  SEE DESCRIPTION FOR APPLICABLE MODELS","description":"\u003cp\u003e This part is supersedes from 6AX-45300-20-8D\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1nkvx9b\" data-start=\"94\" data-end=\"169\"\u003eYamaha - Lower Unit Assembly - Gearcase \u0026amp; Drive System - LF300 - LF350 - 6AX-45300-24-8D\u003c\/h2\u003e\n\u003chr data-start=\"170\" data-end=\"173\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"175\" data-end=\"186\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"188\" data-end=\"710\"\u003eOn Yamaha’s big offshore motors, the lower unit takes a serious beating every time you push the throttle. This assembly is built for LF300 and LF350 platforms, delivering smooth, consistent power transfer even under heavy load. Whether you're running long distances, carrying weight, or dealing with rough water, having a solid gearcase underneath you matters. Swap in a fresh unit like this and you’ll feel the difference right away—clean shifting, steady performance, and no second guessing when you're miles from shore.\u003c\/p\u003e\n\u003chr data-start=\"712\" data-end=\"715\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"717\" data-end=\"732\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"734\" data-end=\"1087\"\u003e• Heavy-Duty Gearcase Assembly – Designed to handle high horsepower and offshore demands.\u003cbr data-start=\"823\" data-end=\"826\"\u003e• Smooth Power Transfer – Ensures efficient delivery of engine power to the prop.\u003cbr data-start=\"907\" data-end=\"910\"\u003e• Corrosion-Resistant Build – Built to withstand harsh saltwater and extended use.\u003cbr data-start=\"992\" data-end=\"995\"\u003e• OEM Yamaha Fitment – Precision-engineered for proper alignment and reliable performance.\u003c\/p\u003e\n\u003chr data-start=\"1089\" data-end=\"1092\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"1094\" data-end=\"1124\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1126\" data-end=\"1175\"\u003e• LF300 - 2007-Current\u003cbr data-start=\"1148\" data-end=\"1151\"\u003e• LF350 - 2007-Current\u003c\/p\u003e\n\u003chr data-start=\"1177\" data-end=\"1180\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1182\" data-end=\"1188\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1190\" data-end=\"1335\"\u003e\u003cstrong data-start=\"1190\" data-end=\"1243\"\u003eQ: What are signs a lower unit needs replacement?\u003c\/strong\u003e\u003cbr data-start=\"1243\" data-end=\"1246\"\u003eA: Grinding noise, vibration, shifting issues, or water in the gear oil are common signs.\u003c\/p\u003e\n\u003cp data-start=\"1337\" data-end=\"1456\"\u003e\u003cstrong data-start=\"1337\" data-end=\"1383\"\u003eQ: Is this a complete lower unit assembly?\u003c\/strong\u003e\u003cbr data-start=\"1383\" data-end=\"1386\"\u003eA: Yes, it’s a full gearcase assembly designed for direct replacement.\u003c\/p\u003e\n\u003cp data-start=\"1458\" data-end=\"1601\"\u003e\u003cstrong data-start=\"1458\" data-end=\"1495\"\u003eQ: Will this improve performance?\u003c\/strong\u003e\u003cbr data-start=\"1495\" data-end=\"1498\"\u003eA: If your current unit is worn or damaged, it will restore smooth operation and proper power transfer.\u003c\/p\u003e\n\u003cp data-start=\"1603\" data-end=\"1717\"\u003e\u003cstrong data-start=\"1603\" data-end=\"1636\"\u003eQ: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"1636\" data-end=\"1639\"\u003eA: It’s a more advanced repair and usually handled by experienced technicians.\u003c\/p\u003e\n\u003cp data-start=\"1719\" data-end=\"1806\"\u003e\u003cstrong data-start=\"1719\" data-end=\"1765\"\u003eQ: Does this replace an older part number?\u003c\/strong\u003e\u003cbr data-start=\"1765\" data-end=\"1768\"\u003eA: Yes, it supersedes 6AX-45300-20-8D.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937842778403,"sku":"6AX-45300-24-8D","price":8235.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV849131.jpg?v=1698803373","url":"https:\/\/partsvu.com\/en-ca\/products\/yamaha-lower-unit-assembly-lf300-lf350-6ax-45300-24-8d-see-description-for-applicable-models","provider":"PartsVu","version":"1.0","type":"link"}