{"product_id":"sierra-18-7903-4-cycle-outboard-oil-filter","title":"Sierra 18-7903 4-Cycle Outboard Oil Filter – Suzuki DF9.9\/DF15 \u0026 Johnson\/Evinrude","description":"\u003csection class=\"product-description\"\u003e\n\n\u003ch2\u003eSierra 18-7903 4-Cycle Outboard Oil Filter – Suzuki DF9.9\/DF15 \u0026amp; Johnson\/Evinrude\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 18-7903  |  \u003cstrong\u003eSKU:\u003c\/strong\u003e 47-7903  |  \u003cstrong\u003eUPC:\u003c\/strong\u003e 808282244880\u003c\/p\u003e\n\n\u003cp\u003eThe Sierra 18-7903 is a marine spin-on oil filter for selected Suzuki DF-series and Johnson\/Evinrude 4-stroke outboard engines, primarily in the smaller DF9.9 and DF15 range. It uses a heavy-wall steel canister with epoxy corrosion protection and high-efficiency filter media that meets or exceeds OEM filtration requirements.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFilter type: 4-cycle outboard spin-on oil filter\u003c\/li\u003e\n\u003cli\u003eCanister: Heavy-wall epoxy-coated steel\u003c\/li\u003e\n\u003cli\u003eFilter media: High-efficiency, meets or exceeds OEM specification\u003c\/li\u003e\n\u003cli\u003eMarine-duty construction for freshwater and saltwater environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSuzuki DF9.9 4-stroke outboards specifying Suzuki 16510-05240\u003c\/li\u003e\n\u003cli\u003eSuzuki DF15 4-stroke outboards specifying Suzuki 16510-05240\u003c\/li\u003e\n\u003cli\u003eJohnson 4-stroke outboard applications specifying J\/E 5033102 or 763364\u003c\/li\u003e\n\u003cli\u003eEvinrude 4-stroke outboard applications specifying J\/E 5033102 or 763364\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Confirm your engine model, horsepower, model year, and existing filter part number before ordering. The strongest fitment check is matching Suzuki 16510-05240 or Johnson\/Evinrude 5033102 \/ 763364 to the filter currently on your engine.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eReplace at every scheduled engine oil service. Follow the outboard manufacturer’s recommended interval for your specific engine model — typically every 100 hours or once per season, whichever comes first.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove the old filter and confirm the old gasket has come away with it — a retained gasket will cause an oil leak\u003c\/li\u003e\n\u003cli\u003eClean the filter mounting surface\u003c\/li\u003e\n\u003cli\u003eLightly coat the new filter gasket with fresh engine oil before threading it on\u003c\/li\u003e\n\u003cli\u003eTighten by hand plus ¾ turn, or per engine manufacturer specification — do not over-tighten\u003c\/li\u003e\n\u003cli\u003eRun the engine and inspect for leaks before returning to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOEM \u0026amp; Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSierra:\u003c\/strong\u003e 18-7903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuzuki:\u003c\/strong\u003e 16510-05240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohnson \/ Evinrude:\u003c\/strong\u003e 5033102, 763364\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory:\u003c\/strong\u003e 9-57807\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMP:\u003c\/strong\u003e 35-57807\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachoice-50-21017-full-flow-oil-filter-20-micron\"\u003eSeachoice 50-21017 Full-Flow Oil Filter – 20 Micron\u003c\/a\u003e — value alternative for Suzuki \u0026amp; OMC outboard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/sierra-18-7896-4-cycle-outboard-oil-filter\"\u003eSierra 18-7896 4-Cycle Outboard Oil Filter – Suzuki DF-Series \u0026amp; Johnson\/Evinrude\u003c\/a\u003e — Sierra filter for larger Suzuki DF-series outboards\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-18-7897-4-cycle-outboard-oil-filter\"\u003eSierra 18-7897 4-Cycle Outboard Oil Filter – Suzuki DF115\/DF140 \u0026amp; Johnson\/Evinrude\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-18-7902-4-cycle-outboard-oil-filter\"\u003eSierra 18-7902 4-Cycle Outboard Oil Filter – Yamaha F15–F100 4-Stroke\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e Routine oil and filter changes on Suzuki DF9.9 and DF15 4-stroke outboards and compatible Johnson\/Evinrude 4-stroke applications. The DF9.9 and DF15 are popular small 4-stroke outboards widely used for dinghy tenders, canoes, inflatables, and small aluminum boats — making this a frequently requested maintenance item for shops servicing entry-level Suzuki 4-stroke outboards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Issues:\u003c\/strong\u003e Suzuki uses multiple oil filter references across their DF-series lineup, and several look similar. The most reliable fitment confirmation is matching Suzuki 16510-05240 or Johnson\/Evinrude 5033102 \/ 763364 against the filter currently on the engine. If a customer is unsure, ask for the engine model and year. As with all spin-on filters, remind customers to confirm the old gasket comes off with the old filter before installing the new one.\u003c\/p\u003e\n\n\u003c\/section\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199650594852,"sku":"47-7903","price":17.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4ec0292e-531f-4d08-9183-1b3891b31f02.png?v=1788156406","url":"https:\/\/marisolmarine.com\/products\/sierra-18-7903-4-cycle-outboard-oil-filter","provider":"Marisol Marine Company","version":"1.0","type":"link"}