{"product_id":"yamaha-gear-61b-45570-03-00","title":"Yamaha - Gear - 61B-45570-03-00","description":"\u003ch2 data-section-id=\"1kuxxll\" data-start=\"0\" data-end=\"66\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3\" data-end=\"66\"\u003eYamaha - Gear - Lower Unit Gear Component - 61B-45570-03-00\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003chr data-start=\"68\" data-end=\"71\"\u003e\n\u003ch2 data-section-id=\"1i9hwo6\" data-start=\"73\" data-end=\"90\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"76\" data-end=\"88\"\u003eOverview\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"91\" data-end=\"648\"\u003eWhen a forward gear starts wearing out on these bigger Yamaha setups, you’ll feel it right away—slipping under load, hesitation when you put it in gear, or that rough engagement that just doesn’t feel right. This gear is a major player in how your outboard delivers power to the prop, especially on higher horsepower motors where everything is under more stress. It’s built to handle serious torque and keep things running smooth when everything’s dialed in. Replacing it during a rebuild is one of those moves that brings the whole lower unit back to life.\u003c\/p\u003e\n\u003chr data-start=\"650\" data-end=\"653\"\u003e\n\u003ch2 data-section-id=\"1bqk1w5\" data-start=\"655\" data-end=\"676\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"658\" data-end=\"674\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"678\" data-end=\"795\"\u003e• \u003cstrong data-start=\"680\" data-end=\"711\"\u003ePrimary Drive Gear Function\u003c\/strong\u003e – Handles forward power transfer from the drivetrain to the propeller under load.\u003c\/p\u003e\n\u003cp data-start=\"797\" data-end=\"902\"\u003e• \u003cstrong data-start=\"799\" data-end=\"825\"\u003eHigh Torque Capability\u003c\/strong\u003e – Built to withstand the demands of larger Yamaha outboards and heavy use.\u003c\/p\u003e\n\u003cp data-start=\"904\" data-end=\"1004\"\u003e• \u003cstrong data-start=\"906\" data-end=\"934\"\u003ePrecision Gear Tooth Cut\u003c\/strong\u003e – Designed for smooth meshing to reduce noise, vibration, and wear.\u003c\/p\u003e\n\u003cp data-start=\"1006\" data-end=\"1170\"\u003e• \u003cstrong data-start=\"1008\" data-end=\"1036\"\u003eOEM Construction Quality\u003c\/strong\u003e – Genuine Yamaha component engineered for long-term durability and proper gearcase alignment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1172\" data-end=\"1175\"\u003e\n\u003ch2 data-section-id=\"bf5ct7\" data-start=\"1177\" data-end=\"1213\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1180\" data-end=\"1211\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1214\" data-end=\"1432\"\u003eCompatible with select Yamaha high-horsepower outboard lower units, commonly found in 225 HP and 250 HP V6 models. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e Always verify fitment using your engine model and service manual.\u003c\/p\u003e\n\u003chr data-start=\"1434\" data-end=\"1437\"\u003e\n\u003ch2 data-section-id=\"1fngur7\" data-start=\"1439\" data-end=\"1451\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1442\" data-end=\"1449\"\u003eFAQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1453\" data-end=\"1619\"\u003e\u003cstrong data-start=\"1453\" data-end=\"1502\"\u003eQ: What are the signs this gear is going bad?\u003c\/strong\u003e\u003cbr data-start=\"1502\" data-end=\"1505\"\u003e\u003cstrong data-start=\"1505\" data-end=\"1511\"\u003eA:\u003c\/strong\u003e You’ll usually notice slipping in forward gear, grinding noises, or inconsistent acceleration under load.\u003c\/p\u003e\n\u003cp data-start=\"1621\" data-end=\"1786\"\u003e\u003cstrong data-start=\"1621\" data-end=\"1662\"\u003eQ: Is this a forward or reverse gear?\u003c\/strong\u003e\u003cbr data-start=\"1662\" data-end=\"1665\"\u003e\u003cstrong data-start=\"1665\" data-end=\"1671\"\u003eA:\u003c\/strong\u003e This is typically used as a forward drive gear in the lower unit assembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1788\" data-end=\"1959\"\u003e\u003cstrong data-start=\"1788\" data-end=\"1847\"\u003eQ: Can I replace just this gear without a full rebuild?\u003c\/strong\u003e\u003cbr data-start=\"1847\" data-end=\"1850\"\u003e\u003cstrong data-start=\"1850\" data-end=\"1856\"\u003eA:\u003c\/strong\u003e Technically yes, but since it requires full lower unit teardown, it’s usually done during a rebuild.\u003c\/p\u003e\n\u003cp data-start=\"1961\" data-end=\"2095\"\u003e\u003cstrong data-start=\"1961\" data-end=\"2002\"\u003eQ: What causes this gear to wear out?\u003c\/strong\u003e\u003cbr data-start=\"2002\" data-end=\"2005\"\u003e\u003cstrong data-start=\"2005\" data-end=\"2011\"\u003eA:\u003c\/strong\u003e Low gear oil, water intrusion, or heavy impact damage are the most common causes.\u003c\/p\u003e\n\u003cp data-start=\"2097\" data-end=\"2276\"\u003e\u003cstrong data-start=\"2097\" data-end=\"2148\"\u003eQ: Will replacing this fix slipping under load?\u003c\/strong\u003e\u003cbr data-start=\"2148\" data-end=\"2151\"\u003e\u003cstrong data-start=\"2151\" data-end=\"2157\"\u003eA:\u003c\/strong\u003e If worn or damaged gear teeth are the issue, replacing it will usually restore proper engagement and power transfer.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46939039629603,"sku":"61B-45570-03-00","price":620.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV223236.jpg?v=1698807438","url":"https:\/\/partsvu.com\/en-mx\/products\/yamaha-gear-61b-45570-03-00","provider":"PartsVu","version":"1.0","type":"link"}