{"product_id":"sierra-18-7909-4-cycle-outboard-oil-filter","title":"Sierra 18-7909 4-Cycle Outboard Oil Filter – Honda BF75–BF250 4-Stroke","description":"\u003csection class=\"product-description\"\u003e\n\n\u003ch2\u003eSierra 18-7909 4-Cycle Outboard Oil Filter – Honda BF75–BF250 4-Stroke\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 18-7909  |  \u003cstrong\u003eSKU:\u003c\/strong\u003e 47-7909  |  \u003cstrong\u003eUPC:\u003c\/strong\u003e 808282265779\u003c\/p\u003e\n\n\u003cp\u003eThe Sierra 18-7909 is a marine spin-on oil filter for selected Honda BF-series 4-stroke outboard engines in the 75–250 HP range. It uses a 20 mm x 1.5 thread, heavy-wall steel canister with epoxy corrosion protection, high-efficiency filter media, and an anti-drain-back valve that helps retain oil pressure between uses and reduce dry-start conditions on startup.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThread: 20 mm x 1.5\u003c\/li\u003e\n\u003cli\u003eFilter type: 4-cycle outboard spin-on oil filter\u003c\/li\u003e\n\u003cli\u003eAnti-drain-back valve: Yes\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\u003eHonda BF75 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF90 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF115 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF130 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF135 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF150 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF175 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF200 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF225 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003cli\u003eHonda BF250 4-stroke outboards (selected model years — verify by OEM filter number)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Honda BF-series outboards use multiple oil filter references across different model years and configurations. Always confirm by engine model, model year, and existing OEM filter number before ordering. The strongest identifiers are part numbers in the Honda 15400-PLM, 15400-P0H, and 15400-ZJ1 families. The 20 mm x 1.5 thread is a useful secondary check.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eReplace at every scheduled engine oil service. Follow Honda’s recommended maintenance schedule for your specific BF-series outboard — typically every 100 hours or once per season, whichever comes first. Refer to your Honda owner’s or service manual for your specific model.\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 Honda service 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 18-7909\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda:\u003c\/strong\u003e 15400-P0H-305, 15400-P0H-305PE, 15400-PLM-A01PE, 15400-PLM-A02, 15400-PLM-A02PE, 15400-ZJ1-004, 15410-ZJ4-999AH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory:\u003c\/strong\u003e 9-57810\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMP:\u003c\/strong\u003e 35-57810\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\/sierra-18-7913-4-cycle-outboard-oil-filter-mercury-honda-47-7913\"\u003eSierra 18-7913 4-Cycle Outboard Oil Filter – Mercury \u0026amp; Honda\u003c\/a\u003e — Sierra filter for Honda and Mercury 4-stroke applications using a different OEM reference\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/seachoice-50-21003-full-flow-oil-filter-honda-yamaha-nissan-tohatsu\"\u003eSeachoice 50-21003 Full-Flow Oil Filter – Honda, Yamaha \u0026amp; Nissan\/Tohatsu\u003c\/a\u003e — value alternative for Honda 4-stroke outboards\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\u003cli\u003e\u003ca href=\"\/products\/sierra-18-7906-2-4-cycle-outboard-oil-filter\"\u003eSierra 18-7906-2 4-Cycle Outboard Oil Filter – Yamaha F150–F250 V6 \u0026amp; Mercury\/Mariner F225\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 Honda BF75 through BF250 4-stroke outboards — Honda’s mid-to-large outboard lineup and one of the most respected 4-stroke outboard families on the market. Honda BF-series outboards are known for reliability and long service intervals, but they do require regular oil and filter maintenance. This filter covers a broad span of the Honda 4-stroke lineup, making it a useful stock item for shops servicing Honda outboards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Issues:\u003c\/strong\u003e Honda uses multiple oil filter part numbers across the BF-series lineup, and several look similar in size and thread. The most reliable fitment check is matching one of the Honda 15400-PLM \/ 15400-P0H \/ 15400-ZJ1 numbers against the filter currently on the engine. If a customer can’t find a number on the old filter, the engine model year and horsepower will help narrow it down. 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":51199650660388,"sku":"47-7909","price":16.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-7909.jpg?v=1785611165","url":"https:\/\/marisolmarine.com\/products\/sierra-18-7909-4-cycle-outboard-oil-filter","provider":"Marisol Marine Company","version":"1.0","type":"link"}