{"product_id":"k-n-replacement-element-for-rk-3929-custom-air-filter","title":"K\u0026N Replacement Element for RK-3929 Custom Air Filter","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eE-3040\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 024844199348\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eK\u0026amp;N E-3040 Replacement Element for RK-3929 Custom Air Filter - Fits 2004-2021 Harley-Davidson Sportster\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe K\u0026amp;N E-3040 is a washable reusable oval air filter that replaces the element in RK-3929 custom air cleaner assemblies on select 2004-2021 Harley-Davidson Sportster models. It delivers higher airflow for gains in horsepower and acceleration while protecting your engine with four-layer cotton gauze filtration. Covered by K\u0026amp;N Million Mile Limited Warranty this direct-fit filter maintains peak performance over time.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Airflow Design:\u003c\/strong\u003e Boosts horsepower and quicker throttle response through increased air volume into the engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Layer Cotton Gauze Media:\u003c\/strong\u003e Traps dirt and debris for engine protection without restricting flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashable and Reusable:\u003c\/strong\u003e Clean every 50000 miles or yearly then re-oil for like-new performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect RK-3929 Replacement:\u003c\/strong\u003e Exact oval shape with 5 in x 3 in outside diameter 2.5 in inside diameter and 1.25 in height for seamless fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMillion Mile Limited Warranty:\u003c\/strong\u003e Lifetime coverage when used and maintained properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse K\u0026amp;N air filter cleaning kit PN 9925DP for maintenance\u003c\/li\u003e\n\u003cli\u003ePre-oiled from factory for immediate installation\u003c\/li\u003e\n\u003cli\u003ePackaged in protective box measuring 6.75 x 4.75 x 2.5 inches\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\u003eRemove old element from RK-3929 housing and drop in E-3040 no modifications needed\u003c\/li\u003e\n\u003cli\u003eCompatible with stock RK-3929 hardware and chrome lid\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\u003e2004-2009\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL883C\u003c\/td\u003e\n\u003ctd\u003eSportster Custom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2011\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL1200C\u003c\/td\u003e\n\u003ctd\u003eSportster Custom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL1200R\u003c\/td\u003e\n\u003ctd\u003eSportster Roadster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL883N\u003c\/td\u003e\n\u003ctd\u003eIron 883\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL883L\u003c\/td\u003e\n\u003ctd\u003eSportster Low\/SuperLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL1200L\u003c\/td\u003e\n\u003ctd\u003eSportster Low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003eXL1200N\u003c\/td\u003e\n\u003ctd\u003eNightster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose K\u0026amp;N?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrusted by millions of riders for air filters since 1969\u003c\/li\u003e\n\u003cli\u003eDyno-tested gains in power on Harley engines\u003c\/li\u003e\n\u003cli\u003eEngineered in USA with precise measurements for Sportster fit\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 Will the E-3040 fit my 2008 Harley Sportster Custom XL883C with RK-3929?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it is a direct replacement for the RK-3929 element on 2004-2009 XL883C models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What filter media does it use?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Four layers of oiled cotton gauze pleated over steel mesh for high flow and dirt-holding capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How is the warranty honored?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Million Mile Limited Warranty covers defects in materials when cleaned using K\u0026amp;N methods contact K\u0026amp;N for claims\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 USPS Priority\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 Cardboard box 6.75 x 4.75 x 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":40091332640847,"sku":"KNNE-3040","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/kn-replacement-element-for-rk-3929-custom-air-filter-kn-engineering.jpg?v=1766993112","url":"https:\/\/www.blackopsautoworks.com\/products\/k-n-replacement-element-for-rk-3929-custom-air-filter","provider":"Black Ops Auto Works","version":"1.0","type":"link"}