FITMENT : Fits Twin Cam models 1999/Later (Except 2016/Later Touring models). 1. Derby Cover?Fits 1999-2017 Dyna, 2000-2018 Softail (except FLSB), 1999-2015 Touring and Trike models (except 2015 FLHTCUL & FLHTKL & 2007-later Touring and Trike models equipped with Narrow-Profile Outer Primary Cover P/N 25700385 or 25700438). 2. Timer Cover?Fits 1999-2017 Twin Cam-equipped models. 3. Dyna: 1999-2017 Super Glide, Wide Glide, Street Bob 4. Softail?2000-2018 Softail, Fat Boy ?except FLSB) 5. Touring?1999-2015 Touring, Road Glide, Road King, Street Glide (except 2015 FLHTKL, FLHTCUL & 2007-2015 Touring & Trike models equipped with Narrow-Profile Outer Primary Cover P/N 25700385 or 25700438) 2012-2013 FLD Dyna Switchback 2001-2013 FLHR Road King 2000-2013 FLHRCI Road King Classic 2004-2008 FLHRS Road King Custom 1996-2013 FLHTC Electra Glide Classic 1999-2013 FLHTCU Ultra Classic Electra Glide 2008-2013 FLHTCHUSE3 Ultra Classic Electra 2009-2013 FLHTCUTG Tri Glide Ultra Classic 2010-2013 FLHTK Electra Glide Ultra Limited 2006-2013 FLHX/I Street Glide 2010-2013 ELHXSE CVO Street Glide 2010-2011 FLHXXX Street Glide Trike 2003-2013 FLSTCI Heritage Softail Classic 2001-2013 FLSTF Fat Boy 2010-2013 FLSFB Softail Fat Boy Lo 2005-2013 FLSTN/I Softail Deluxe 1999-2013 FLTR-I Road Glide 2003-2009 FXD Dyna Super Glide 2006-2013 FXDBI Dyna Street Bob 2005-2013 FXDC Dyna Super Glide Custom 1999-2013 FXDL Dyna Low Rider 2011-2013 FXS Blackline Softail 2001-2011 FXSTB Softail Night Trai.