{"product_id":"yamaha-gear-2-6h3-45571-00-00","title":"Yamaha - Gear 2 - 6H3-45571-00-00","description":"\u003ch2 data-section-id=\"6ivo7p\" data-start=\"0\" data-end=\"68\"\u003eYamaha - Gear 2 - Lower Unit Gearcase Component - 6H3-45571-00-00\u003c\/h2\u003e\n\u003chr data-start=\"70\" data-end=\"73\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"75\" data-end=\"86\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"87\" data-end=\"472\"\u003eWhen a lower unit starts making noise or slipping under load, gears are usually where the problem shows up. I’ve opened up gearcases where this gear was worn just enough to cause rough engagement or inconsistent performance. It’s not something you want to ignore, because it only gets worse with use. Replacing it the right way brings the drivetrain back to smooth, reliable operation.\u003c\/p\u003e\n\u003chr data-start=\"474\" data-end=\"477\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"479\" data-end=\"494\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"495\" data-end=\"980\"\u003e\n\u003cli data-section-id=\"avdewm\" data-start=\"495\" data-end=\"599\"\u003ePrecision Gear Engagement – Transfers power within the gearcase for smooth and consistent operation.\u003c\/li\u003e\n\u003cli data-section-id=\"15mnu2d\" data-start=\"600\" data-end=\"693\"\u003eHardened Gear Construction – Built to handle torque and resist wear under continuous use.\u003c\/li\u003e\n\u003cli data-section-id=\"jch7gy\" data-start=\"694\" data-end=\"784\"\u003eOEM-Spec Machining – Designed to Yamaha tolerances for proper gear mesh and alignment.\u003c\/li\u003e\n\u003cli data-section-id=\"1846hd9\" data-start=\"785\" data-end=\"877\"\u003eReliable Power Transfer – Supports steady propulsion without slipping or abnormal noise.\u003c\/li\u003e\n\u003cli data-section-id=\"1hb7uie\" data-start=\"878\" data-end=\"980\"\u003eCritical Drivetrain Component – Essential for proper lower unit function and long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"982\" data-end=\"985\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"987\" data-end=\"1017\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1018\" data-end=\"1288\"\u003eDesigned for Yamaha outboards with compatible lower unit and gearcase assemblies. Commonly used on small to mid-size engines found on fishing boats, skiffs, and recreational vessels. Always verify compatibility with your specific engine and gearcase before installation.\u003c\/p\u003e\n\u003chr data-start=\"1290\" data-end=\"1293\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1295\" data-end=\"1301\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1303\" data-end=\"1446\"\u003e\u003cstrong data-start=\"1303\" data-end=\"1354\"\u003eQ: What are signs this gear is worn or failing?\u003c\/strong\u003e\u003cbr data-start=\"1354\" data-end=\"1357\"\u003eA: Grinding noise, slipping out of gear, or metal particles in gear oil are common signs.\u003c\/p\u003e\n\u003cp data-start=\"1448\" data-end=\"1591\"\u003e\u003cstrong data-start=\"1448\" data-end=\"1484\"\u003eQ: Can I replace just this gear?\u003c\/strong\u003e\u003cbr data-start=\"1484\" data-end=\"1487\"\u003eA: Sometimes, but it’s important to inspect the entire gearcase since wear often affects multiple parts.\u003c\/p\u003e\n\u003cp data-start=\"1593\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1593\" data-end=\"1627\"\u003eQ: Is this a difficult repair?\u003c\/strong\u003e\u003cbr data-start=\"1627\" data-end=\"1630\"\u003eA: Yes, gearcase work requires precise setup, including shimming and alignment.\u003c\/p\u003e\n\u003cp data-start=\"1711\" data-end=\"1850\"\u003e\u003cstrong data-start=\"1711\" data-end=\"1760\"\u003eQ: What causes gear damage in the lower unit?\u003c\/strong\u003e\u003cbr data-start=\"1760\" data-end=\"1763\"\u003eA: Impact, low or contaminated gear oil, and normal wear over time are the main causes.\u003c\/p\u003e\n\u003cp data-start=\"1852\" data-end=\"2004\"\u003e\u003cstrong data-start=\"1852\" data-end=\"1907\"\u003eQ: Should I replace other components during repair?\u003c\/strong\u003e\u003cbr data-start=\"1907\" data-end=\"1910\"\u003eA: It’s recommended to check and often replace bearings and seals while the gearcase is apart.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937087443235,"sku":"6H3-45571-00-00","price":174.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV253863.jpg?v=1698800208","url":"https:\/\/partsvu.com\/en-mx\/products\/yamaha-gear-2-6h3-45571-00-00","provider":"PartsVu","version":"1.0","type":"link"}