{"title":"Yamaha F350 Outboard Lower Unit Assemblies","description":"","products":[{"product_id":"yamaha-lower-unit-assembly-lf300-lf350-fl350-6ax-45300-3a-8d-see-description-for-applicable-model","title":"Yamaha - Lower unit assembly  - LF300 - LF350 - FL350 - 6AX-45300-3A-8D - See Description For Applicable Model","description":"\u003ch2 data-section-id=\"1y42hh2\" data-start=\"94\" data-end=\"187\"\u003eYamaha - Lower Unit Assembly - Gearcase \u0026amp; Drive System - LF300 - LF350 - 6AX-45300-3A-8D \u003c\/h2\u003e\n\u003chr data-start=\"188\" data-end=\"191\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"193\" data-end=\"204\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"206\" data-end=\"716\"\u003eOn Yamaha’s larger offshore motors, the lower unit is doing the heavy lifting every time you throttle up. This assembly is built for LF300 and LF350 platforms, delivering smooth, consistent power transfer from the engine down to the prop. Whether you're running long offshore trips or pushing through rough water, having a solid gearcase underneath matters. If your current unit is worn or starting to show signs of failure, replacing it brings back that confident, steady performance you expect from a Yamaha.\u003c\/p\u003e\n\u003chr data-start=\"718\" data-end=\"721\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"723\" data-end=\"738\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"740\" data-end=\"1110\"\u003e• Heavy-Duty Gearcase Assembly – Designed to handle high horsepower loads and offshore use.\u003cbr data-start=\"831\" data-end=\"834\"\u003e• Efficient Power Transfer – Ensures smooth delivery of engine power to the propeller.\u003cbr data-start=\"920\" data-end=\"923\"\u003e• Corrosion-Resistant Build – Built to withstand harsh saltwater and marine conditions.\u003cbr data-start=\"1010\" data-end=\"1013\"\u003e• OEM Yamaha Fitment – Engineered to factory specs for proper alignment and reliable operation.\u003c\/p\u003e\n\u003chr data-start=\"1112\" data-end=\"1115\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"1117\" data-end=\"1147\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1149\" data-end=\"1209\"\u003e• LF300 - 2007-2009\u003cbr data-start=\"1168\" data-end=\"1171\"\u003e• LF350 - 2007-2012\u003cbr data-start=\"1190\" data-end=\"1193\"\u003e• FL350 - 2010\u003c\/p\u003e\n\u003chr data-start=\"1211\" data-end=\"1214\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1216\" data-end=\"1222\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1224\" data-end=\"1374\"\u003e\u003cstrong data-start=\"1224\" data-end=\"1277\"\u003eQ: What are signs a lower unit needs replacement?\u003c\/strong\u003e\u003cbr data-start=\"1277\" data-end=\"1280\"\u003eA: Grinding noise, vibration, shifting issues, or water in the gear oil are common indicators.\u003c\/p\u003e\n\u003cp data-start=\"1376\" data-end=\"1495\"\u003e\u003cstrong data-start=\"1376\" data-end=\"1422\"\u003eQ: Is this a complete lower unit assembly?\u003c\/strong\u003e\u003cbr data-start=\"1422\" data-end=\"1425\"\u003eA: Yes, it’s a full gearcase assembly designed for direct replacement.\u003c\/p\u003e\n\u003cp data-start=\"1497\" data-end=\"1660\"\u003e\u003cstrong data-start=\"1497\" data-end=\"1554\"\u003eQ: Will replacing the lower unit improve performance?\u003c\/strong\u003e\u003cbr data-start=\"1554\" data-end=\"1557\"\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=\"1662\" data-end=\"1778\"\u003e\u003cstrong data-start=\"1662\" data-end=\"1695\"\u003eQ: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"1695\" data-end=\"1698\"\u003eA: It’s a more advanced repair and typically handled by experienced technicians.\u003c\/p\u003e\n\u003cp data-start=\"1780\" data-end=\"1915\"\u003e\u003cstrong data-start=\"1780\" data-end=\"1818\"\u003eQ: Are these updated part numbers?\u003c\/strong\u003e\u003cbr data-start=\"1818\" data-end=\"1821\"\u003eA: Yes, these assemblies supersede earlier versions while maintaining proper fit and function.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937842581795,"sku":"6AX-45300-3A-8D","price":8235.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/6ax-45300-3a-8d.jpg?v=1698803370"},{"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"},{"product_id":"yamaha-lower-unit-assembly-f350-6aw-45311-01-8d-see-description-for-applicable-models","title":"Yamaha Lower Unit Assembly -  F350 - 6AW-45311-01-8D  - See Description for Applicable Models","description":"\u003cp\u003e\u003cstrong\u003eYamaha Lower Unit Assembly F350 6AW-45311-01-8D\u003c\/strong\u003e - Ensure the optimal performance and reliability of your Yamaha F350 outboard with the Yamaha Lower Unit Assembly F350 6AW-45311-01-8D. This high-quality lower unit assembly is meticulously engineered to provide exceptional durability and efficiency, ensuring your outboard motor operates smoothly in various marine conditions. Made from premium materials, it offers excellent resistance to corrosion and wear, providing long-lasting reliability.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eYamaha Lower Unit Assembly F350 6AW-45311-01-8D\u003c\/strong\u003e is designed for easy installation and maintenance, making it an ideal choice for Yamaha F350 outboard owners. Its robust construction ensures it can withstand the demanding conditions of marine use, giving you peace of mind on the water. Invest in this lower unit assembly to enhance your outboard's functionality and extend its service life, ensuring your engine remains in top condition for years to come.\u003c\/p\u003e\n\u003cp\u003e6AW-45311-01-8D - CASING, LOWER\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937857556771,"sku":"6AW-45311-01-8D","price":1950.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV240715.jpg?v=1698803436"},{"product_id":"yamaha-lower-unit-assembly-f350-6aw-45300-34-8d-see-description-for-applicable-model","title":"Yamaha - Lower Unit Assembly - F350 - 6AW-45300-34-8D - See Description For Applicable Model","description":"\u003ch2 data-section-id=\"oslubi\" data-start=\"89\" data-end=\"164\"\u003eYamaha - Lower Unit Assembly - Gearcase \u0026amp; Drive System - F350 - 6AW-45300-34-8D\u003c\/h2\u003e\n\u003chr data-start=\"165\" data-end=\"168\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"170\" data-end=\"181\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"183\" data-end=\"683\"\u003eOn a V8 like the Yamaha F350, the lower unit is carrying serious load every time you push the throttle forward. This assembly is built to handle that kind of power, delivering smooth, consistent transfer from the engine down to the prop. If your current unit is worn or starting to show signs of failure, this is the kind of replacement that brings everything back into line. You’ll notice it right away—clean shifting, steady performance, and confidence when you're running hard or heading offshore.\u003c\/p\u003e\n\u003chr data-start=\"685\" data-end=\"688\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"690\" data-end=\"705\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"707\" data-end=\"1097\"\u003e• Heavy-Duty Gearcase Assembly – Built to handle high horsepower demands from Yamaha V8 outboards.\u003cbr data-start=\"805\" data-end=\"808\"\u003e• Smooth Power Transfer – Ensures efficient delivery of engine power to the propeller.\u003cbr data-start=\"894\" data-end=\"897\"\u003e• Corrosion-Resistant Construction – Designed for durability in both saltwater and freshwater environments.\u003cbr data-start=\"1004\" data-end=\"1007\"\u003e• OEM Yamaha Fitment – Precision-engineered for proper alignment and reliable operation.\u003c\/p\u003e\n\u003chr data-start=\"1099\" data-end=\"1102\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"1104\" data-end=\"1134\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1136\" data-end=\"1159\"\u003e• F350 - 2014-Current\u003c\/p\u003e\n\u003chr data-start=\"1161\" data-end=\"1164\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1166\" data-end=\"1172\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1174\" data-end=\"1325\"\u003e\u003cstrong data-start=\"1174\" data-end=\"1228\"\u003eQ: What are signs my lower unit needs replacement?\u003c\/strong\u003e\u003cbr data-start=\"1228\" data-end=\"1231\"\u003eA: Grinding noise, vibration, shifting issues, or water in the gear oil are common indicators.\u003c\/p\u003e\n\u003cp data-start=\"1327\" data-end=\"1446\"\u003e\u003cstrong data-start=\"1327\" data-end=\"1373\"\u003eQ: Is this a complete lower unit assembly?\u003c\/strong\u003e\u003cbr data-start=\"1373\" data-end=\"1376\"\u003eA: Yes, it’s a full gearcase assembly designed for direct replacement.\u003c\/p\u003e\n\u003cp data-start=\"1448\" data-end=\"1584\"\u003e\u003cstrong data-start=\"1448\" data-end=\"1485\"\u003eQ: Will this improve performance?\u003c\/strong\u003e\u003cbr data-start=\"1485\" data-end=\"1488\"\u003eA: If your current unit is worn or damaged, it will restore smooth operation and power transfer.\u003c\/p\u003e\n\u003cp data-start=\"1586\" data-end=\"1702\"\u003e\u003cstrong data-start=\"1586\" data-end=\"1619\"\u003eQ: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"1619\" data-end=\"1622\"\u003eA: It’s a more advanced repair and typically handled by experienced technicians.\u003c\/p\u003e\n\u003cp data-start=\"1704\" data-end=\"1850\"\u003e\u003cstrong data-start=\"1704\" data-end=\"1756\"\u003eQ: Is this designed for high horsepower engines?\u003c\/strong\u003e\u003cbr data-start=\"1756\" data-end=\"1759\"\u003eA: Yes, it’s specifically built for Yamaha V8 platforms that require heavy-duty components.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937857753379,"sku":"6AW-45300-34-8D","price":7243.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/6aw-45300-34-8d.jpg?v=1698803437"},{"product_id":"yamaha-lower-unit-assy-6aw-45300-a2-8d","title":"Yamaha - Lower unit assy - 6AW-45300-A2-8D","description":"\u003cp\u003e\u003cstrong\u003eYamaha Lower Unit Assy 6AW-45300-A2-8D\u003c\/strong\u003e is a premium, genuine Yamaha part designed to optimize the performance and reliability of your outboard engine. This lower unit assembly ensures efficient power transfer from the engine to the propeller, significantly enhancing your boat's maneuverability and speed. Crafted to Yamaha's stringent standards, this component guarantees exceptional durability and dependable operation, making it an essential addition to your marine equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eYamaha Lower Unit Assy 6AW-45300-A2-8D\u003c\/strong\u003e is engineered for a precise fit with your Yamaha outboard, ensuring a seamless installation process and optimal functionality. Its robust construction and high-quality materials are designed to withstand the toughest marine environments, providing long-lasting performance in all conditions. Trust in Yamaha's expertise and commitment to quality with this lower unit assembly, designed to keep your outboard engine running smoothly and efficiently for years to come.\u003c\/p\u003e\n\u003cp\u003eYamaha - Lower unit assy - 6AW-45300-A2-8D\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937857851683,"sku":"6AW-45300-A2-8D","price":7876.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV849130_1.jpg?v=1698803438"},{"product_id":"yamaha-lower-unit-assembly-f300-f350-6aw-45300-23-8d-see-description-for-applicable-models","title":"Yamaha - Lower Unit Assembly - F300 - F350 -  6AW-45300-23-8D - See Description For Applicable Models","description":"\u003cp\u003e\u003cb\u003eYamaha Lower Unit Assy - 6AW-45300-23-8D\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cb\u003eYamaha Lower Unit Assy - 6AW-45300-23-8D\u003c\/b\u003e is expertly crafted to ensure peak performance and reliability for your Yamaha outboard engine. This lower unit assembly is made with premium materials and advanced engineering, providing smooth power transfer and enhanced propulsion efficiency. Designed to endure the toughest marine conditions, whether in freshwater or saltwater, this assembly offers robust durability and a long service life. It is an excellent choice for boaters who seek dependable and high-performing marine components.\u003c\/p\u003e\n\u003cp\u003eThe \u003cb\u003eYamaha Lower Unit Assy - 6AW-45300-23-8D\u003c\/b\u003e features precision-crafted gears and a sturdy construction that ensures optimal alignment and fit. This contributes to improved handling and overall boat performance, while minimizing maintenance requirements. Perfect for both professional mariners and recreational boaters, this lower unit assembly delivers the reliability and efficiency needed for an exceptional on-water experience. Trust in Yamaha's quality to keep your boating adventures smooth and enjoyable.\u003c\/p\u003e\n\u003cp\u003eApplicable Engine Model For 6AW-45300-23-8D:\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF300TXR - 2007 - 2009\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF350TXR - 2007 - 2009\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF350AET1X - 2010\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF350XCA - 2010 - 2011\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF350XCB - 2012 - 2015\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan data-sheets-value=\"{\" data-sheets-userformat=\"{\"\u003eF350XCC - 2016 - 2019\u003c\/span\u003e\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937857949987,"sku":"6AW-45300-23-8D","price":7167.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/6aw-45300-23-8d.jpg?v=1698803437"}],"url":"https:\/\/partsvu.com\/en-ca\/collections\/yamaha-f350-outboard-lower-unit-assemblies.oembed","provider":"PartsVu","version":"1.0","type":"link"}