{"product_id":"yamaha-oil-tank-cap-assembly-6h4-21770-01-00","title":"Yamaha - Oil Tank Cap Assembly - 6H4-21770-01-00","description":"\u003ch2 data-section-id=\"1c1rvmk\" data-start=\"0\" data-end=\"82\"\u003eYamaha - Oil Tank Cap Assembly - Lubrication System Component - 6H4-21770-01-00\u003c\/h2\u003e\n\u003chr data-start=\"84\" data-end=\"87\"\u003e\n\u003ch2 data-section-id=\"rzkdgm\" data-start=\"89\" data-end=\"100\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"101\" data-end=\"484\"\u003eI’ve learned not to overlook something as simple as an oil tank cap, especially on older two-stroke setups. A worn or loose cap can let air into the system or allow contamination, and that’s where problems start. This updated version replaces the older one and gives you a better, more reliable seal. It’s a small upgrade that helps keep your oil system doing its job without issues.\u003c\/p\u003e\n\u003chr data-start=\"486\" data-end=\"489\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"491\" data-end=\"506\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"507\" data-end=\"1020\"\u003e\n\u003cli data-section-id=\"1clku8x\" data-start=\"507\" data-end=\"615\"\u003eUpdated Replacement Design – Supersedes earlier version to maintain proper fit and improved reliability.\u003c\/li\u003e\n\u003cli data-section-id=\"5wzm0y\" data-start=\"616\" data-end=\"715\"\u003eSecure Oil System Seal – Helps keep the oil supply protected from air and outside contaminants.\u003c\/li\u003e\n\u003cli data-section-id=\"8y4msi\" data-start=\"716\" data-end=\"809\"\u003eProper Venting Support – Allows consistent oil flow by maintaining correct tank pressure.\u003c\/li\u003e\n\u003cli data-section-id=\"15lwv57\" data-start=\"810\" data-end=\"912\"\u003eOEM Fitment Construction – Built to Yamaha specifications for dependable sealing and installation.\u003c\/li\u003e\n\u003cli data-section-id=\"a7cjew\" data-start=\"913\" data-end=\"1020\"\u003eDurable Marine Build – Designed to handle heat, vibration, and long-term exposure to marine conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1022\" data-end=\"1025\"\u003e\n\u003ch2 data-section-id=\"1qx5o2j\" data-start=\"1027\" data-end=\"1057\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1058\" data-end=\"1326\"\u003eDesigned for Yamaha outboards equipped with compatible oil injection systems. Commonly used across small to mid-size two-stroke engines found on fishing boats, skiffs, and recreational vessels. Always verify compatibility with your specific engine before installation.\u003c\/p\u003e\n\u003chr data-start=\"1328\" data-end=\"1331\"\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"1333\" data-end=\"1339\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"1341\" data-end=\"1514\"\u003e\u003cstrong data-start=\"1341\" data-end=\"1405\"\u003eQ: What’s the difference between this and the older version?\u003c\/strong\u003e\u003cbr data-start=\"1405\" data-end=\"1408\"\u003eA: This part replaces the earlier version with updated design improvements for better fit and reliability.\u003c\/p\u003e\n\u003cp data-start=\"1516\" data-end=\"1678\"\u003e\u003cstrong data-start=\"1516\" data-end=\"1578\"\u003eQ: What happens if the oil tank cap doesn’t seal properly?\u003c\/strong\u003e\u003cbr data-start=\"1578\" data-end=\"1581\"\u003eA: Air or contaminants can enter the system, which can affect oil delivery and engine protection.\u003c\/p\u003e\n\u003cp data-start=\"1680\" data-end=\"1815\"\u003e\u003cstrong data-start=\"1680\" data-end=\"1725\"\u003eQ: How tight should the cap be installed?\u003c\/strong\u003e\u003cbr data-start=\"1725\" data-end=\"1728\"\u003eA: Snug and secure is enough—over-tightening isn’t necessary and can wear out the seal.\u003c\/p\u003e\n\u003cp data-start=\"1817\" data-end=\"1966\"\u003e\u003cstrong data-start=\"1817\" data-end=\"1869\"\u003eQ: Can this cause oil system alarms if it’s bad?\u003c\/strong\u003e\u003cbr data-start=\"1869\" data-end=\"1872\"\u003eA: In some cases, yes—improper sealing can lead to inconsistent oil flow and trigger warnings.\u003c\/p\u003e\n\u003cp data-start=\"1968\" data-end=\"2125\"\u003e\u003cstrong data-start=\"1968\" data-end=\"2020\"\u003eQ: How often should I check or replace this cap?\u003c\/strong\u003e\u003cbr data-start=\"2020\" data-end=\"2023\"\u003eA: It’s a good idea to inspect it during routine maintenance and replace it if you see wear or damage.\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46937073680675,"sku":"6H4-21770-01-00","price":27.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/6h4-21770-01-00.jpg?v=1698800135","url":"https:\/\/partsvu.com\/en-ca\/products\/yamaha-oil-tank-cap-assembly-6h4-21770-01-00","provider":"PartsVu","version":"1.0","type":"link"}