{"product_id":"yamaha-lower-unit-assembly-z300-6d0-45300-20-8d-see-description-for-applicable-models","title":"Yamaha Lower Unit Assembly - Z300 - 6D0-45300-20-8D - See Description for Applicable Models","description":"\u003csection data-turn=\"user\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-23\" data-turn-id=\"750db175-b641-42bd-ba0a-6f6b7ffe0364\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-(--header-height)\"\u003e\u003c\/section\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"true\" data-testid=\"conversation-turn-24\" data-turn-id=\"request-WEB:61ef3151-8bcb-46be-a87b-2cf904f7e236-19\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-3\" dir=\"auto\" data-message-id=\"47ba1884-2493-4564-a849-56bae9f8afe8\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch2 data-end=\"67\" data-start=\"0\" data-section-id=\"i7dxen\"\u003eYamaha - Z300 Lower Unit Assembly - Lower Unit - 6D0-45300-20-8D\u003c\/h2\u003e\n\u003chr data-end=\"72\" data-start=\"69\"\u003e\n\u003ch2 data-end=\"87\" data-start=\"74\" data-section-id=\"6lznae\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"45\" data-end=\"53\"\u003e• Z300\u003c\/p\u003e\n\u003chr data-end=\"548\" data-start=\"545\"\u003e\n\u003ch2 data-end=\"567\" data-start=\"550\" data-section-id=\"14at72t\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-end=\"1103\" data-start=\"568\"\u003e• \u003cstrong data-end=\"599\" data-start=\"570\"\u003eHeavy-Duty Gearcase Build\u003c\/strong\u003e – Designed to handle high horsepower loads without compromising performance.\u003cbr data-end=\"679\" data-start=\"676\"\u003e• \u003cstrong data-end=\"706\" data-start=\"681\"\u003eSmooth Power Transfer\u003c\/strong\u003e – Delivers consistent propulsion with clean engagement through the drivetrain.\u003cbr data-end=\"788\" data-start=\"785\"\u003e• \u003cstrong data-end=\"822\" data-start=\"790\"\u003ePrecision Internal Alignment\u003c\/strong\u003e – Ensures proper gear mesh for reduced vibration and improved handling.\u003cbr data-end=\"897\" data-start=\"894\"\u003e• \u003cstrong data-end=\"928\" data-start=\"899\"\u003eMarine-Ready Construction\u003c\/strong\u003e – Built to perform in both freshwater and saltwater conditions.\u003cbr data-end=\"995\" data-start=\"992\"\u003e• \u003cstrong data-end=\"1021\" data-start=\"997\"\u003eFactory-Spec Fitment\u003c\/strong\u003e – Engineered specifically for Yamaha Z300 applications for reliable installation.\u003c\/p\u003e\n\u003chr data-end=\"1108\" data-start=\"1105\"\u003e\n\u003ch2 data-end=\"1142\" data-start=\"1110\" data-section-id=\"1b7w7ff\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-end=\"1323\" data-start=\"1143\"\u003eDesigned for Yamaha Z300 outboard engines across a range of configurations. Commonly used on high horsepower boats for offshore, recreational, and performance-focused applications.\u003c\/p\u003e\n\u003chr data-end=\"1328\" data-start=\"1325\"\u003e\n\u003ch2 data-end=\"1338\" data-start=\"1330\" data-section-id=\"x9bttf\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-end=\"1496\" data-start=\"1340\"\u003e\u003cstrong data-end=\"1391\" data-start=\"1340\"\u003eQ: What are signs a lower unit needs replacing?\u003c\/strong\u003e\u003cbr data-end=\"1394\" data-start=\"1391\"\u003e\u003cstrong data-end=\"1400\" data-start=\"1394\"\u003eA:\u003c\/strong\u003e Grinding noises, difficulty shifting, vibration, or water in the gear oil are all common signs.\u003c\/p\u003e\n\u003cp data-end=\"1644\" data-start=\"1498\"\u003e\u003cstrong data-end=\"1557\" data-start=\"1498\"\u003eQ: Can I keep running if my lower unit is making noise?\u003c\/strong\u003e\u003cbr data-end=\"1560\" data-start=\"1557\"\u003e\u003cstrong data-end=\"1566\" data-start=\"1560\"\u003eA:\u003c\/strong\u003e It’s not recommended. Continued use can lead to more serious internal damage.\u003c\/p\u003e\n\u003cp data-end=\"1786\" data-start=\"1646\"\u003e\u003cstrong data-end=\"1693\" data-start=\"1646\"\u003eQ: Is this suitable for heavy offshore use?\u003c\/strong\u003e\u003cbr data-end=\"1696\" data-start=\"1693\"\u003e\u003cstrong data-end=\"1702\" data-start=\"1696\"\u003eA:\u003c\/strong\u003e Yes, it’s built to handle the demands of high horsepower engines and extended runs.\u003c\/p\u003e\n\u003cp data-end=\"1940\" data-start=\"1788\"\u003e\u003cstrong data-end=\"1835\" data-start=\"1788\"\u003eQ: Does installation require special tools?\u003c\/strong\u003e\u003cbr data-end=\"1838\" data-start=\"1835\"\u003e\u003cstrong data-end=\"1844\" data-start=\"1838\"\u003eA:\u003c\/strong\u003e Basic mechanical tools are needed, but proper alignment and setup are key for best performance.\u003c\/p\u003e\n\u003cp data-end=\"2095\" data-start=\"1942\"\u003e\u003cstrong data-end=\"1994\" data-start=\"1942\"\u003eQ: How can I extend the life of this lower unit?\u003c\/strong\u003e\u003cbr data-end=\"1997\" data-start=\"1994\"\u003e\u003cstrong data-end=\"2003\" data-start=\"1997\"\u003eA:\u003c\/strong\u003e Regular gear oil changes and checking for water intrusion will help keep it running strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937567625507,"sku":"6D0-45300-20-8D","price":5089.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV244234.jpg?v=1698802252","url":"https:\/\/partsvu.com\/en-ca\/products\/yamaha-lower-unit-assembly-z300-6d0-45300-20-8d-see-description-for-applicable-models","provider":"PartsVu","version":"1.0","type":"link"}