K&N Engineering
KNNRK-3909-1

K&N Red Intake System for Harley Davidson

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. The RK-3910-1 comes with a larger air filter and longer spacers than the RK-3909-1.

This Part Fits:

Year Make Model Submodel
1999-2007 Harley-Davidson FLHR Road King Base
2007 Harley-Davidson FLHRC Road King Classic Base
2002-2006 Harley-Davidson FLHRCI Road King Classic Base
2003-2006 Harley-Davidson FLHRI Road King Base
2004-2007 Harley-Davidson FLHRS Road King Custom Base
2004-2006 Harley-Davidson FLHRSI Road King Custom Base
1999-2007 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005,2007 Harley-Davidson FLHTC Electra Glide Classic Base
2002-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
2007 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006-2007 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLHXI Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
2000-2012 Harley-Davidson FLSTC Heritage Softail Classic Base
2002-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2000-2012 Harley-Davidson FLSTF Fat Boy Base
2010-2012 Harley-Davidson FLSTFB Fat Boy Lo Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2006 Harley-Davidson FLSTI Heritage Softail Base
2005-2012 Harley-Davidson FLSTN Softail Deluxe Base
2005-2006 Harley-Davidson FLSTNI Softail Deluxe Base
2000-2003 Harley-Davidson FLSTS Heritage Springer Base
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base
2005-2006 Harley-Davidson FLSTSCI Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1999-2002,2007 Harley-Davidson FLTR Road Glide Base
2002-2006 Harley-Davidson FLTRI Road Glide Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
1999-2007 Harley-Davidson FXD Dyna Super Glide Base
2007 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005,2007 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2004-2006 Harley-Davidson FXDI Dyna Super Glide Base
2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide Base
1999-2005,2007 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1999-2007 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2004 Harley-Davidson FXDX Dyna Super Glide Sport Base
2004-2005 Harley-Davidson FXDXI Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
2000-2009 Harley-Davidson FXST Softail Standard Base
2000-2009 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
2007-2010 Harley-Davidson FXSTC Softail Custom Base
2000-2007 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
2000-2006 Harley-Davidson FXSTS Springer Softail Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base
$299.99

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