{"product_id":"yamaha-lower-unit-assy-63p-45300-06-8d","title":"Yamaha - Lower unit assy - 63P-45300-06-8D","description":"\u003ch2 data-section-id=\"fcns6v\" data-start=\"0\" data-end=\"77\"\u003eYamaha - Lower Unit Assembly - Gearcase \u0026amp; Power Transfer - 63P-45300-06-8D\u003c\/h2\u003e\n\u003chr data-start=\"79\" data-end=\"82\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"84\" data-end=\"95\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"96\" data-end=\"526\"\u003eOn these Yamaha setups, when the lower unit is fresh, you can feel it right away—clean shifts, solid engagement, and no extra noise. I’ve replaced plenty that were starting to grind or feel sloppy, and a full assembly like this brings everything back in one shot. It takes the guesswork out of worn internal parts and gives you back that dependable feel at the throttle. Once it’s on, the motor just runs the way it’s supposed to.\u003c\/p\u003e\n\u003chr data-start=\"528\" data-end=\"531\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"533\" data-end=\"548\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"549\" data-end=\"942\"\u003e\n\u003cli data-section-id=\"19yrus5\" data-start=\"549\" data-end=\"656\"\u003e\n\u003cstrong data-start=\"551\" data-end=\"581\"\u003eComplete Gearcase Assembly\u003c\/strong\u003e – Includes internal gears and housing for a full lower unit replacement.\u003c\/li\u003e\n\u003cli data-section-id=\"13q8tex\" data-start=\"657\" data-end=\"740\"\u003e\n\u003cstrong data-start=\"659\" data-end=\"684\"\u003eSmooth Power Transfer\u003c\/strong\u003e – Delivers consistent engine output to the propeller.\u003c\/li\u003e\n\u003cli data-section-id=\"bvbm5i\" data-start=\"741\" data-end=\"849\"\u003e\n\u003cstrong data-start=\"743\" data-end=\"779\"\u003eCorrosion-Resistant Construction\u003c\/strong\u003e – Built to handle saltwater exposure and harsh marine environments.\u003c\/li\u003e\n\u003cli data-section-id=\"12sgrnp\" data-start=\"850\" data-end=\"942\"\u003e\n\u003cstrong data-start=\"852\" data-end=\"880\"\u003eReliable Gear Engagement\u003c\/strong\u003e – Provides clean shifting with reduced noise and vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"944\" data-end=\"947\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"949\" data-end=\"979\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"980\" data-end=\"1147\"\u003eFits Yamaha outboard engines in the F150 class and similar mid-range four-stroke models. Commonly used on center consoles, bay boats, and recreational fishing vessels.\u003c\/p\u003e\n\u003chr data-start=\"1149\" data-end=\"1152\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1154\" data-end=\"1160\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1162\" data-end=\"1319\"\u003e\u003cstrong data-start=\"1162\" data-end=\"1219\"\u003eQ: What are signs my lower unit needs to be replaced?\u003c\/strong\u003e\u003cbr data-start=\"1219\" data-end=\"1222\"\u003e\u003cstrong data-start=\"1222\" data-end=\"1228\"\u003eA:\u003c\/strong\u003e Grinding noise, slipping gears, water in gear oil, or rough shifting are all common signs.\u003c\/p\u003e\n\u003cp data-start=\"1321\" data-end=\"1460\"\u003e\u003cstrong data-start=\"1321\" data-end=\"1381\"\u003eQ: Can I keep running if the lower unit is making noise?\u003c\/strong\u003e\u003cbr data-start=\"1381\" data-end=\"1384\"\u003e\u003cstrong data-start=\"1384\" data-end=\"1390\"\u003eA:\u003c\/strong\u003e It’s risky—damage can get worse quickly and lead to complete failure.\u003c\/p\u003e\n\u003cp data-start=\"1462\" data-end=\"1597\"\u003e\u003cstrong data-start=\"1462\" data-end=\"1520\"\u003eQ: Do I need to check gear oil before using this unit?\u003c\/strong\u003e\u003cbr data-start=\"1520\" data-end=\"1523\"\u003e\u003cstrong data-start=\"1523\" data-end=\"1529\"\u003eA:\u003c\/strong\u003e Yes, always confirm it’s filled to the proper level before running.\u003c\/p\u003e\n\u003cp data-start=\"1599\" data-end=\"1751\"\u003e\u003cstrong data-start=\"1599\" data-end=\"1652\"\u003eQ: How does saltwater use affect this lower unit?\u003c\/strong\u003e\u003cbr data-start=\"1652\" data-end=\"1655\"\u003e\u003cstrong data-start=\"1655\" data-end=\"1661\"\u003eA:\u003c\/strong\u003e Salt can accelerate corrosion, especially around seals, so regular flushing is important.\u003c\/p\u003e\n\u003cp data-start=\"1753\" data-end=\"1915\"\u003e\u003cstrong data-start=\"1753\" data-end=\"1802\"\u003eQ: Is installation something I can do myself?\u003c\/strong\u003e\u003cbr data-start=\"1802\" data-end=\"1805\"\u003e\u003cstrong data-start=\"1805\" data-end=\"1811\"\u003eA:\u003c\/strong\u003e If you’ve done lower unit swaps before, it’s manageable, but proper alignment and torque are important.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46938802487587,"sku":"63P-45300-06-8D","price":3499.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/63p-45300-06-8d.jpg?v=1698806659","url":"https:\/\/partsvu.com\/en-mx\/products\/yamaha-lower-unit-assy-63p-45300-06-8d","provider":"PartsVu","version":"1.0","type":"link"}