S&S Cycle 3.937" Bore Big Bore Forged Piston Kit for Harley 107" Twin Cam

• Pistons are compatible with stock rods with tapered wristpin ends
• Stock cylinders may be bored to accommodate larger piston
• Bore cylinders to nominal diameter +/- 0.0005" for correct clearance

2016-2017 Harley-Davidson FXDLS Low Rider S 
2015-2016 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low 
2015-2016 Harley-Davidson FLHTKL Ultra Limited Low 
2015-2016 Harley-Davidson FLHTK Ultra Limited 
2015-2016 Harley-Davidson FLTRXS Road Glide Special 
2015 Harley-Davidson FLTRX Road Glide 
2014-2016 Harley-Davidson FLHTKSE CVO Limited 
2014-2016 Harley-Davidson FLHXS Street Glide Special 
2014 Harley-Davidson CVO Road King FLHRSE 
2014 Harley-Davidson Electra Glide Ultra Classic Low FLHTCUL 
2013 Harley-Davidson FLHRSE5 CVO Road King 
2013 Harley-Davidson FLHTCUSE8 CVO Ultra Classic Electra Glide 
2013 Harley-Davidson FLTRXSE2 CVO Road Glide Custom 
2012-2016 Harley-Davidson FLD Switchback 
2012 Harley-Davidson FLHTCUSE7 CVO Ultra Classic Electra Glide 
2012 Harley-Davidson FLHXSE3 CVO Street Glide 
2012 Harley-Davidson FLTRXSE CVO Road Glide 
2011-2013, 2016 Harley-Davidson FLTRU Road Glide Ultra 
2011-2013 Harley-Davidson FLTRX Road Glide Custom 
2011, 2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra 
2011 Harley-Davidson FLHTCUSE6 CVO Ultra Classic Electra Glide 
2011 Harley-Davidson FLHXSE2 CVO Street Glide 
2010-2014 Harley-Davidson FLHTK Electra Glide Ultra Limited 
2010, 2015-2016 Harley-Davidson FLHXSE CVO Street Glide 
2010 Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide 
2010 Harley-Davidson FXDFSE2 CVO Dyna Fat Bob 
2009-2013 Harley-Davidson Road King Classic FLHRC 
2009 Harley-Davidson FLHTCUSE4 CVO Ultra Classic Electra Glide 
2009 Harley-Davidson FLTRSE3 CVO Road Glide 
2009 Harley-Davidson FXDFSE CVO Dyna Fat Bob 
2008-2017 Harley-Davidson FXDF Fat Bob 
2008 Harley-Davidson FXDSE2 Screamin Eagle Dyna 
2008 Harley-Davidson FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide 
2008 Harley-Davidson FLHRSE4 Screamin Eagle Road King 
2007-2017 Harley-Davidson FXDB Street Bob 
2007-2016 Harley-Davidson FLHR Road King 
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic 
2007-2016 Harley-Davidson FLHX Street Glide 
2007-2016 Harley-Davidson Electra Glide Police FLHTPI 
2007-2014 Harley-Davidson FXDC Super Glide Custom 
2007-2013 Harley-Davidson FLHRC Road King Classic 
2007-2013 Harley-Davidson FLHTC Electra Glide Classic 
2007-2010, 2016 Harley-Davidson FLTR Road Glide 
2007-2010 Harley-Davidson FXD Dyna Super Glide 
2007-2009, 2014-2017 Harley-Davidson FXDL Dyna Low Rider 
2007-2009 Harley-Davidson FLHT Electra Glide Standard 
2007-2008, 2010-2017 Harley-Davidson FXDWG Dyna Wide Glide 
2007 Harley-Davidson Softail Rocker C FXCWC 
2007 Harley-Davidson Softail Rocker FXCW 
2007 Harley-Davidson FLHRSE3 Screamin Eagle Road King 
2007 Harley-Davidson FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide 
2007 Harley-Davidson FLSTSC Softail Springer Classic 
2007 Harley-Davidson FXDSE Screamin Eagle Dyna 
2007 Harley-Davidson FXSTSSE Screamin Eagle Softail Springer 
2007 Harley-Davidson FLHRS Road King Custom 
2007 Harley-Davidson FLSTC Heritage Softail Classic 
2007 Harley-Davidson FLSTF Fat Boy 
2007 Harley-Davidson FLSTN Softail Deluxe 
2007 Harley-Davidson FXST Softail Standard 
2007 Harley-Davidson FXSTB Night Train 
2007 Harley-Davidson FXSTC Softail Custom 
2007 Harley-Davidson FXSTD Softail Deuce