KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of todays engines. KMPIs certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on replacement valve stems.2003-2007 fits Buell XB9R Firebolt 2003-2004 fits Buell XB9S Lightning 2004 fits Buell XB9SL 2005-2007 fits Buell XB9SX Lightning 2003 fits Buell XB9SX Lightning CityX 2012-2016 fits H-D FLD Switchback 2005-2016 fits H-D FLHR Road King 2007-2013 fits H-D FLHRC Road King Classic 2005-2006 fits H-D FLHRCI Road King Classic 2005-2006 fits H-D FLHRI Road King 2005-2007 fits H-D FLHRS Road King Custom 2005-2006 fits H-D FLHRSI Road King Custom 2005-2009 fits H-D FLHT Electra Glide Standard 2005 fits H-D FLHTC Electra Glide Classic 2007-2013 fits H-D FLHTC Electra Glide Classic 2005-2006 fits H-D FLHTCI Electra Glide Classic 2007-2016 fits H-D FLHTCU Electra Glide Ultra Classic 2005-2006 fits H-D FLHTCUI Electra Glide Ultra Classic 2015-2016 fits H-D FLHTCUL Electra Glide Ultra Classic Low 2014-2016 fits H-D FLHTCUTG Tri Glide Ultra 2009-2013 fits H-D FLHTCUTG Tri Glide Ultra Classic 2005-2006 fits H-D FLHTI Electra Glide Standard 2010-2014 fits H-D FLHTK Electra Glide Ultra Limited 2015-2016 fits H-D FLHTK Ultra Limited 2015-2016 fits H-D FLHTKL Ultra Limited Low 2006-2016 fits H-D FLHX Street Glide 2006 fits H-D FLHXI Street Glide 2014-2016 fits H-D FLHXS Street Glide Special 2010-2011 fits H-D FLHXXX Street Glide Trike 2015-2016 fits H-D FLRT Freewheeler 2012-2017 fits H-D FLS Softail Slim 2006 fits H-D FLST Heritage Softail 2005-2017 fits H-D FLSTC Heritage Softail Classic 2005-2006 fits H-D FLSTCI Heritage Softail Classic 2005-2017 fits H-D FLSTF Fat Boy 2010-2016 fits H-D FLSTFB Fat Boy Lo 2005-2006 fits H-D FLSTFI Fat Boy 2006 fits H-D FLSTI Heritage Softail