{"product_id":"oil-filter-35-858004k","title":"Mercury – High Performance Oil Filter | MerCruiser Sterndrive \u0026 Inboard Series | Synthetic Filtration Media | 858004K","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – High Performance Oil Filter | MerCruiser Sterndrive \u0026amp; Inboard Series | Synthetic Filtration Media | 858004K\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a certain comfort in knowing your engine is protected long before you push the throttle forward. Clean oil isn’t just maintenance—it’s the lifeblood that keeps long summer cruises, early-morning runs, and family weekends running \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esmooth\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThat’s why so many boaters stay loyal to Mercury’s High Performance Oil Filter 858004K. It’s built for those of us who want the confidence of an engine that’s ready for anything, whether you’re idling out of the marina or carving across open water with a warm breeze at your back.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eScrew-on oil filter engineered for MerCruiser sterndrive and inboard engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHigh-efficiency synthetic filtration media removes over 97% of oil contaminants\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for extended engine protection during high-load and long-run operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReinforced housing for durability under vibration and sustained pressure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEasy replacement with basic tools and an oil filter wrench\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits all MerCruiser 4.5-liter and 6.2-liter sterndrive and inboard engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with GM-based marine engines except V6 models with block-mounted filters\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for bowriders, cruisers, runabouts, deck boats, and performance sport boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for both recreational and higher-demand boating applications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e A great oil filter doesn’t draw attention—it simply lets your engine breathe cleaner, run cooler, and stay protected from the small contaminants that create big problems over time. With the 858004K installed, you’ll notice smoother operation and more consistent oil pressure across the entire RPM range. The synthetic filtration media captures the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efine\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e debris that circulates during hard acceleration, long no-wake zones, and extended family outings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOn the water, that translates into a steadier, quieter engine that feels secure even under heavy loads. The filter’s reinforced canister stands up to vibration and pressure fluctuations, giving you a strong sense of confidence when the water turns choppy or you open up the throttle. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFitment is tight and clean, threading \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eon\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e smoothly without fuss or guesswork.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e And because it’s \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003edesigned specifically\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for MerCruiser engines, you won’t deal with leaks, mismatched seals, or a filter that runs hot.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaintenance is simple—spin it off, spin the new one on, and know you’ve given your engine a fresh layer of protection. It’s the type of part that rewards consistency with long engine life, better performance, and fewer surprises down the line.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen it comes to oil filtration, shortcuts \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ejust aren’t\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e worth it.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA genuine Mercury Marine part ensures you’re using a filter engineered around the exact flow rates, pressure demands, and contaminant sizes your MerCruiser engine encounters. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAftermarket filters often \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003emiss the mark on\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e filtration density or bypass valve calibration, which can \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003elead to\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e premature wear or pressure drop.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWith OEM, you’re getting long-term reliability, a perfect fit, and the peace of mind that comes from using the same filter Mercury installs from the factory. It’s practical, proven, and the safest investment you can make for your engine’s health.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Mercury 858004K High Performance Oil Filter fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt fits MerCruiser 4.5-liter and 6.2-liter sterndrive and inboard engines, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ealong with\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e select GM-based marine engines except V6 models with block-mounted filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this filter better than aftermarket alternatives?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Its synthetic media removes more contaminants, maintains oil pressure more consistently, and matches Mercury’s exact OEM specifications\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if this is the correct replacement?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your existing filter or owner’s manual for part number 858004K. If it’s listed, this is the correct fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can it be used in both saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, it performs reliably in both environments and protects against the demanding conditions of marine use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolut\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eely. With a standard filter wrench and basic tools, replacement is quick and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimple\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626549600547,"sku":"35-858004K","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/858004k_main.jpg?v=1760631247","url":"https:\/\/partsvu.com\/en-ca\/products\/oil-filter-35-858004k","provider":"PartsVu","version":"1.0","type":"link"}