{"product_id":"k-n-universal-clamp-on-air-filter-3-5in-flg-id-x-8-5x5-25in-b-od-x-6-25x4in-t-od-x-5-5in-h","title":"K\u0026N Universal Clamp-On Air Filter 3.5in Flg ID x 8.5x5.25in B OD x 6.25x4in T OD x 5.5in H","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eRU-5040\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 024844386199\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eK\u0026amp;N Universal Clamp-On Air Filter 3.5in Flg ID x 8.5x5.25in B OD x 6.25x4in T OD x 5.5in H\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis K\u0026amp;amp.N RU-5040 oval tapered conical air filter delivers high-flow filtration for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and off-road equipment. The 3.5-inch centered flange clamps securely to any compatible intake with pliable rubber that stretches up to 1\/16 inch for precise fit. Washable and reusable cotton gauze media traps dirt while allowing maximum airflow for consistent power gains.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOval Tapered Design:\u003c\/strong\u003e 8.5 x 5.25 inch base OD tapers to 6.25 x 4 inch top OD with 5.5 inch height for compact high-flow setups in tight engine bays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5 Inch Flange:\u003c\/strong\u003e 1.25 inch long centered rubber flange absorbs vibration, stretches 1.5mm for in-between sizes, ensures leak-free seal on intakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCotton Gauze Media:\u003c\/strong\u003e Oiled four-layer filtration captures contaminants down to 1 micron while boosting airflow over paper filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashable Construction:\u003c\/strong\u003e Clean with K\u0026amp;amp.N kit and reuse indefinitely without performance loss for long-term cost savings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Fits wide range of equipment from RC cars to industrial engines regardless of intake angle or offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOil filter with provided K\u0026amp;amp.N oil for initial setup and maintenance\u003c\/li\u003e\n\u003cli\u003eWash every 50,000 miles or annually with soap and water, re-oil before reinstall\u003c\/li\u003e\n\u003cli\u003eShips in protective box, handle flanges carefully to avoid damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eClamp directly to 3.5 inch ID intake pipe, stretch flange if needed up to 1\/16 inch\u003c\/li\u003e\n\u003cli\u003eCompatible with hose clamps or adapters, no special hardware required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eRacing Vehicles\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eGenerators\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eSnowmobiles\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eTractors\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eR\/C Cars\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAny\u003c\/td\u003e\n\u003ctd\u003eOff-Road Equipment\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose K\u0026amp;amp.N?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven leader in high-performance air filtration since 1969\u003c\/li\u003e\n\u003cli\u003eEngineered for durability with vibration-resistant rubber components\u003c\/li\u003e\n\u003cli\u003eBacked by extensive testing for reliable airflow in demanding conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this fit non-standard intake angles?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, flexible flange design accommodates various angles and offsets on racing or custom setups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used in the filter media?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Four-layer cotton gauze with proprietary red oil for superior dust holding and airflow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How do I maintain this filter?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Wash with K\u0026amp;amp.N cleaner, rinse, dry completely, apply filter oil evenly, reusable for life of equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Product box 9.06 x 6.81 x 6.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.6 pounds\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":45025584906319,"sku":"KNNRU-5040","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/kn-universal-clamp-on-air-filter-3_5in-flg-id-x-8_5x5_25in-b-od-x-6_25x4in-t-od-x-5_5in-h-kn-engineering.jpg?v=1774642406","url":"https:\/\/www.blackopsautoworks.com\/products\/k-n-universal-clamp-on-air-filter-3-5in-flg-id-x-8-5x5-25in-b-od-x-6-25x4in-t-od-x-5-5in-h","provider":"Black Ops Auto Works","version":"1.0","type":"link"}