{"product_id":"oil-filter-onan-47-237804","title":"Sierra 47-237804 Oil Filter – Onan Marine Generator","description":"\u003ch2\u003eSierra 47-237804 Oil Filter – Onan Marine Generator\u003c\/h2\u003e\u003cp\u003eA direct-fit replacement oil filter for Onan marine generators, engineered to Sierra’s marine-grade specifications. Designed to maintain proper oil flow and filtration efficiency through the full service interval, this filter helps protect your generator’s engine from wear-causing contaminants — keeping your onboard power running reliably whether you’re at anchor or underway.\u003c\/p\u003e\u003cp\u003eSierra’s marine oil filters are built to meet or exceed OEM specifications for fit, filtration media quality, and bypass valve performance. Verify fitment against your Onan generator model and service manual before ordering.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect-fit replacement for compatible Onan marine generators\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM filtration specifications\u003c\/li\u003e\n\u003cli\u003eEngineered for marine generator service intervals\u003c\/li\u003e\n\u003cli\u003eQuality filtration media for effective contaminant removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest Use Case\u003c\/h3\u003e\u003cp\u003eThe right choice for boaters performing routine oil changes on their Onan marine generator who want a reliable aftermarket filter at a lower cost than the OEM part. Particularly practical for liveaboards and cruisers who service their generator regularly and want a trusted marine-grade filter on hand. Always cross-reference your Onan generator model number against Sierra’s application guide to confirm fitment before installation.\u003c\/p\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eIf you prefer the OEM filter for your Onan generator, see the \u003ca href=\"\/products\/cummins-onan-genuine-oil-filter-185-7444\"\u003eCummins Onan Genuine Oil Filter – 185-7444\u003c\/a\u003e. For a WIX aftermarket alternative, see the \u003ca href=\"\/products\/wix-oil-filter-51344-cummins-onan-generator-185-5835\"\u003eWIX Oil Filter 51344 – Cummins Onan Generator\u003c\/a\u003e. If your vessel runs a Kohler marine generator instead, see the Sierra oil filters for Kohler: \u003ca href=\"\/products\/oil-filter-sierra-47-237822-kohler-marine-generator\"\u003eSierra 47-237822\u003c\/a\u003e, \u003ca href=\"\/products\/oil-filter-sierra-47-237823-kohler-marine-generator\"\u003eSierra 47-237823\u003c\/a\u003e, or \u003ca href=\"\/products\/oil-filter-sierra-47-237824-kohler-marine-generator\"\u003eSierra 47-237824\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199648006180,"sku":"47-237804","price":14.29,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-237804.jpg?v=1785611129","url":"https:\/\/marisolmarine.com\/products\/oil-filter-onan-47-237804","provider":"Marisol Marine Company","version":"1.0","type":"link"}