{"title":"Yamaha F90 Outboard Lower Unit Assemblies","description":"","products":[{"product_id":"yamaha-lower-unit-assembly-f90-f115-6ek-45300-11-8d-see-description-for-applicable-models","title":"Yamaha Lower Unit Assembly - F90 - F115 - 6EK-45300-11-8D - See Description for Applicable Models","description":"\u003ch2 data-section-id=\"i1xbq9\" data-start=\"109\" data-end=\"181\"\u003eYamaha - Lower Unit Assembly - Gearcase Component - F90 - F115 - 6EK-45300-11-8D\u003c\/h2\u003e\n\u003chr data-start=\"183\" data-end=\"186\"\u003e\n\u003ch2 data-section-id=\"6lznae\" data-start=\"188\" data-end=\"201\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"203\" data-end=\"667\"\u003eThe Yamaha Lower Unit Assembly | 6EK-45300-11-8D is what keeps your engine’s power turning into real push on the water. When a lower unit starts going bad, you’ll feel it right away—noise, vibration, or loss of performance. This assembly handles the gears, driveshaft, and prop output, so everything depends on it being solid and aligned. If you’re replacing a worn or damaged unit, this is the kind of part that brings your motor back to running like it should.\u003c\/p\u003e\n\u003chr data-start=\"669\" data-end=\"672\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"674\" data-end=\"691\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"693\" data-end=\"801\"\u003e• \u003cstrong data-start=\"695\" data-end=\"725\"\u003eEfficient Power Transfer –\u003c\/strong\u003e Delivers engine power smoothly to the propeller for reliable performance.\u003c\/p\u003e\n\u003cp data-start=\"803\" data-end=\"916\"\u003e• \u003cstrong data-start=\"805\" data-end=\"828\"\u003eOEM Fit Precision –\u003c\/strong\u003e Built to Yamaha specifications for proper alignment and straightforward installation.\u003c\/p\u003e\n\u003cp data-start=\"918\" data-end=\"1022\"\u003e• \u003cstrong data-start=\"920\" data-end=\"952\"\u003eComplete Gearcase Assembly –\u003c\/strong\u003e Pre-assembled unit for easier replacement and dependable operation.\u003c\/p\u003e\n\u003cp data-start=\"1024\" data-end=\"1133\"\u003e• \u003cstrong data-start=\"1026\" data-end=\"1064\"\u003eCorrosion-Resistant Construction –\u003c\/strong\u003e Designed to withstand harsh saltwater and freshwater environments.\u003c\/p\u003e\n\u003chr data-start=\"1135\" data-end=\"1138\"\u003e\n\u003ch2 data-section-id=\"1b7w7ff\" data-start=\"1140\" data-end=\"1172\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1174\" data-end=\"1210\"\u003e• F90 2017-Current\u003cbr data-start=\"1189\" data-end=\"1192\"\u003e• F115 2014-Current\u003c\/p\u003e\n\u003chr data-start=\"1212\" data-end=\"1215\"\u003e\n\u003ch2 data-section-id=\"w36ijk\" data-start=\"1217\" data-end=\"1226\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"1228\" data-end=\"1354\"\u003e\u003cstrong data-start=\"1228\" data-end=\"1277\"\u003eQ1: What are signs the lower unit is failing?\u003c\/strong\u003e\u003cbr data-start=\"1277\" data-end=\"1280\"\u003eA: Grinding noise, vibration, water in gear oil, or reduced performance.\u003c\/p\u003e\n\u003cp data-start=\"1356\" data-end=\"1492\"\u003e\u003cstrong data-start=\"1356\" data-end=\"1402\"\u003eQ2: Can I rebuild instead of replacing it?\u003c\/strong\u003e\u003cbr data-start=\"1402\" data-end=\"1405\"\u003eA: Minor issues can be repaired, but major gear damage usually calls for replacement.\u003c\/p\u003e\n\u003cp data-start=\"1494\" data-end=\"1604\"\u003e\u003cstrong data-start=\"1494\" data-end=\"1534\"\u003eQ3: Does this come ready to install?\u003c\/strong\u003e\u003cbr data-start=\"1534\" data-end=\"1537\"\u003eA: Yes, it’s a complete assembly designed for direct replacement.\u003c\/p\u003e\n\u003cp data-start=\"1606\" data-end=\"1735\"\u003e\u003cstrong data-start=\"1606\" data-end=\"1656\"\u003eQ4: Should I check anything before installing?\u003c\/strong\u003e\u003cbr data-start=\"1656\" data-end=\"1659\"\u003eA: It’s a good idea to inspect seals, mounting points, and the driveshaft.\u003c\/p\u003e\n\u003cp data-start=\"1737\" data-end=\"1846\"\u003e\u003cstrong data-start=\"1737\" data-end=\"1771\"\u003eQ5: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"1771\" data-end=\"1774\"\u003eA: It’s manageable with experience, but proper alignment is important.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937345622307,"sku":"6EK-45300-11-8D","price":2490.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV248072.jpg?v=1698801424"},{"product_id":"yamaha-lower-unit-assembly-f90-f100-6d9-45300-14-8d-see-description-for-applicable-models","title":"Yamaha Lower Unit Assembly  - F90 - F100 - 6D9-45300-14-8D - See Description For Applicable Models","description":"\u003ch2 data-section-id=\"1qq4x1r\" data-start=\"0\" data-end=\"71\"\u003eYamaha - Lower Unit Assembly F90\/F100 - Lower Unit - 6D9-45300-14-8D\u003c\/h2\u003e\n\u003chr data-start=\"73\" data-end=\"76\"\u003e\n\u003ch2 data-section-id=\"6lznae\" data-start=\"78\" data-end=\"91\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"92\" data-end=\"518\"\u003eIf you’ve spent any time running a Yamaha on the water, you know the lower unit is where everything comes together. This assembly is built to handle the everyday stress of shifting, throttle response, and long runs without hesitation. It’s the kind of component you install when you want confidence every time you drop it into gear. Whether you're cruising, working, or fishing, it keeps things running smooth and predictable.\u003c\/p\u003e\n\u003chr data-start=\"520\" data-end=\"523\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"525\" data-end=\"542\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"543\" data-end=\"1115\"\u003e• \u003cstrong data-start=\"545\" data-end=\"573\"\u003ePrecision Gear Alignment\u003c\/strong\u003e – Engineered to deliver smooth power transfer and consistent performance under load.\u003cbr data-start=\"658\" data-end=\"661\"\u003e• \u003cstrong data-start=\"663\" data-end=\"694\"\u003eDurable Marine Construction\u003c\/strong\u003e – Built to handle harsh freshwater and saltwater conditions without premature wear.\u003cbr data-start=\"778\" data-end=\"781\"\u003e• \u003cstrong data-start=\"783\" data-end=\"811\"\u003eEfficient Power Delivery\u003c\/strong\u003e – Helps maintain strong propulsion and responsive handling on the water.\u003cbr data-start=\"884\" data-end=\"887\"\u003e• \u003cstrong data-start=\"889\" data-end=\"916\"\u003eFactory-Matched Fitment\u003c\/strong\u003e – Designed to align properly with Yamaha F90 and F100 outboards for dependable operation.\u003cbr data-start=\"1006\" data-end=\"1009\"\u003e• \u003cstrong data-start=\"1011\" data-end=\"1037\"\u003eLow Maintenance Design\u003c\/strong\u003e – Reduces the need for frequent servicing so you can spend more time boating.\u003c\/p\u003e\n\u003chr data-start=\"1117\" data-end=\"1120\"\u003e\n\u003ch2 data-section-id=\"1b7w7ff\" data-start=\"1122\" data-end=\"1154\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"50\" data-end=\"66\"\u003e• F90\u003cbr data-start=\"50\" data-end=\"53\"\u003e• F100\u003c\/p\u003e\n\u003chr data-start=\"1342\" data-end=\"1345\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1347\" data-end=\"1355\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1357\" data-end=\"1541\"\u003e\u003cstrong data-start=\"1357\" data-end=\"1422\"\u003eQ: What are common signs that a lower unit needs replacement?\u003c\/strong\u003e\u003cbr data-start=\"1422\" data-end=\"1425\"\u003e\u003cstrong data-start=\"1425\" data-end=\"1431\"\u003eA:\u003c\/strong\u003e Grinding noises, difficulty shifting, water in the gear oil, or loss of propulsion are all strong indicators.\u003c\/p\u003e\n\u003cp data-start=\"1543\" data-end=\"1714\"\u003e\u003cstrong data-start=\"1543\" data-end=\"1585\"\u003eQ: Is this suitable for saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"1585\" data-end=\"1588\"\u003e\u003cstrong data-start=\"1588\" data-end=\"1594\"\u003eA:\u003c\/strong\u003e Yes, it’s built with materials that hold up well in saltwater, but regular rinsing and maintenance are still important.\u003c\/p\u003e\n\u003cp data-start=\"1716\" data-end=\"1908\"\u003e\u003cstrong data-start=\"1716\" data-end=\"1771\"\u003eQ: Do I need to adjust anything after installation?\u003c\/strong\u003e\u003cbr data-start=\"1771\" data-end=\"1774\"\u003e\u003cstrong data-start=\"1774\" data-end=\"1780\"\u003eA:\u003c\/strong\u003e In most cases, just ensure proper alignment and check fluid levels. Shift linkage may need minor adjustment depending on setup.\u003c\/p\u003e\n\u003cp data-start=\"1910\" data-end=\"2116\"\u003e\u003cstrong data-start=\"1910\" data-end=\"1972\"\u003eQ: Can I install this myself or should I use a technician?\u003c\/strong\u003e\u003cbr data-start=\"1972\" data-end=\"1975\"\u003e\u003cstrong data-start=\"1975\" data-end=\"1981\"\u003eA:\u003c\/strong\u003e If you’re experienced with outboard work, it’s doable. Otherwise, a technician will ensure everything is aligned and sealed correctly.\u003c\/p\u003e\n\u003cp data-start=\"2118\" data-end=\"2292\"\u003e\u003cstrong data-start=\"2118\" data-end=\"2160\"\u003eQ: Will this improve boat performance?\u003c\/strong\u003e\u003cbr data-start=\"2160\" data-end=\"2163\"\u003e\u003cstrong data-start=\"2163\" data-end=\"2169\"\u003eA:\u003c\/strong\u003e If your current unit is worn or damaged, replacing it can restore smooth shifting, better control, and overall efficiency.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937525616931,"sku":"6D9-45300-14-8D","price":2336.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV244885.jpg?v=1698802118"},{"product_id":"yamaha-lower-unit-assembly-f90-f100-6d9-45300-33-8d-see-description-for-applicable-models","title":"Yamaha Lower Unit Assembly - F90 - F100 - 6D9-45300-33-8D - See Description for Applicable Models","description":"\u003cp\u003eThis product has been superseded by: 6D9-45300-34-8D\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1e4fvxu\" data-start=\"79\" data-end=\"151\"\u003eYamaha - Lower Unit Assembly - Gearcase Component - F90 F100 - 6D9-45300-33-8D\u003c\/h2\u003e\n\u003chr data-start=\"153\" data-end=\"156\"\u003e\n\u003ch2 data-section-id=\"6lznae\" data-start=\"158\" data-end=\"171\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"173\" data-end=\"624\"\u003eThe Yamaha Lower Unit Assembly | 6D9-45300-33-8D is built to keep your outboard running strong with smooth and reliable power transfer. This is the part that takes engine output and turns it into forward motion, so when it starts to fail, you’ll notice it immediately—vibration, noise, or reduced performance. Designed to Yamaha’s exact standards, this assembly restores proper function and keeps your motor operating the way it should on the water.\u003c\/p\u003e\n\u003chr data-start=\"626\" data-end=\"629\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"631\" data-end=\"648\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"650\" data-end=\"737\"\u003e• \u003cstrong data-start=\"652\" data-end=\"682\"\u003eEfficient Power Transfer –\u003c\/strong\u003e Delivers smooth propulsion from engine to propeller.\u003c\/p\u003e\n\u003cp data-start=\"739\" data-end=\"843\"\u003e• \u003cstrong data-start=\"741\" data-end=\"764\"\u003eOEM Fit Precision –\u003c\/strong\u003e Engineered to Yamaha specifications for seamless installation and alignment.\u003c\/p\u003e\n\u003cp data-start=\"845\" data-end=\"944\"\u003e• \u003cstrong data-start=\"847\" data-end=\"879\"\u003eComplete Gearcase Assembly –\u003c\/strong\u003e Pre-assembled for reliable performance and easier replacement.\u003c\/p\u003e\n\u003cp data-start=\"946\" data-end=\"1034\"\u003e• \u003cstrong data-start=\"948\" data-end=\"986\"\u003eCorrosion-Resistant Construction –\u003c\/strong\u003e Built to withstand harsh marine environments.\u003c\/p\u003e\n\u003chr data-start=\"1036\" data-end=\"1039\"\u003e\n\u003ch2 data-section-id=\"1b7w7ff\" data-start=\"1041\" data-end=\"1073\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1075\" data-end=\"1091\"\u003e• F90\u003cbr data-start=\"1080\" data-end=\"1083\"\u003e• F100\u003c\/p\u003e\n\u003chr data-start=\"1093\" data-end=\"1096\"\u003e\n\u003ch2 data-section-id=\"w36ijk\" data-start=\"1164\" data-end=\"1173\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"1175\" data-end=\"1300\"\u003e\u003cstrong data-start=\"1175\" data-end=\"1224\"\u003eQ1: What are signs the lower unit is failing?\u003c\/strong\u003e\u003cbr data-start=\"1224\" data-end=\"1227\"\u003eA: Grinding noise, vibration, water in gear oil, or reduced propulsion.\u003c\/p\u003e\n\u003cp data-start=\"1302\" data-end=\"1441\"\u003e\u003cstrong data-start=\"1302\" data-end=\"1359\"\u003eQ2: Can I repair instead of replacing the lower unit?\u003c\/strong\u003e\u003cbr data-start=\"1359\" data-end=\"1362\"\u003eA: Minor issues can be repaired, but full replacement is often more reliable.\u003c\/p\u003e\n\u003cp data-start=\"1443\" data-end=\"1553\"\u003e\u003cstrong data-start=\"1443\" data-end=\"1483\"\u003eQ3: Does this come ready to install?\u003c\/strong\u003e\u003cbr data-start=\"1483\" data-end=\"1486\"\u003eA: Yes, it’s a complete assembly designed for direct replacement.\u003c\/p\u003e\n\u003cp data-start=\"1555\" data-end=\"1687\"\u003e\u003cstrong data-start=\"1555\" data-end=\"1617\"\u003eQ4: Should I inspect other components during installation?\u003c\/strong\u003e\u003cbr data-start=\"1617\" data-end=\"1620\"\u003eA: Yes, check seals, driveshaft alignment, and mounting hardware.\u003c\/p\u003e\n\u003cp data-start=\"1689\" data-end=\"1797\"\u003e\u003cstrong data-start=\"1689\" data-end=\"1723\"\u003eQ5: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"1723\" data-end=\"1726\"\u003eA: It’s manageable with experience, but proper alignment is critical.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937525715235,"sku":"6D9-45300-33-8D","price":2340.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV244890.jpg?v=1698802119"}],"url":"https:\/\/partsvu.com\/en-ca\/collections\/yamaha-f90-outboard-lower-unit-assemblies.oembed","provider":"PartsVu","version":"1.0","type":"link"}