# Twin Power 99-17 Twin Except 110 Cam Base O Ring Replaces H-D 11256 10Pk Twin Power™ O-ring and seal kits provide precision OEM replacements for Harley-Davidson engines, transmissions, and primaries, ensuring leak-free performance in convenient multi-packs. - Precision-engineered O-rings match OEM specs for Twin Cam engines excluding 110 models - Direct replacement restores factory sealing on cam bases from 1999-2017 - Sold in convenient 10-packs for multiple services or shop use - Excludes 110 Cam models within 1999-2017 Twin Cam This Part Fits: Year Make Model Submodel 2012-2016 Harley-Davidson FLD Switchback Base 1999-2016 Harley-Davidson FLHR Road King Base 2007-2013 Harley-Davidson FLHRC Road King Classic Base 1999-2006 Harley-Davidson FLHRCI Road King Classic Base 2000-2006 Harley-Davidson FLHRI Road King Base 2004-2007 Harley-Davidson FLHRS Road King Custom Base 2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base 2003 Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 Base 1999-2009 Harley-Davidson FLHT Electra Glide Standard Base 1999-2005,2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base 1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base 2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base 1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base 2015-2016 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low Base 2006 Harley-Davidson FLHTCUSE Screamin Eagle Ultra Classic Electra Glide Base 2007 Harley-Davidson FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide Base 2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base 2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base 2010-2016 Harley-Davidson FLHTK Ultra Limited Base 2015-2016 Harley-Davidson FLHTKL Ultra Limited Low Base 2014-2016 Harley-Davidson FLHTKSE CVO Limited Base 2006-2016 Harley-Davidson FLHX Street Glide Base 2014-2016 Harley-Davidson FLHXS Street Glide Special Base 2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base 2015-2016 Harley-Davidson FLRT Freewheeler Base 2006,2008-2010 Harley-Davidson FLST Heritage Softail Base 2000-2017 Harley-Davidson FLSTC Heritage Softail Classic Base 2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base 2000-2017 Harley-Davidson FLSTF Fat Boy Base 2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base 2016-2017 Harley-Davidson FLSTFBS Fat Boy S Base 2001-2006 Harley-Davidson FLSTFI Fat Boy Base 2005-2017 Harley-Davidson FLSTN Softail Deluxe Base 2000-2004 Harley-Davidson FLSTS Heritage Springer Base 2008-2011 Harley-Davidson FLSTSB Cross Bones Base 2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base 2001-2003 Harley-Davidson FLSTSI Heritage Springer Base 1999-2010,2016 Harley-Davidson FLTR Road Glide Base 1999-2006 Harley-Davidson FLTRI Road Glide Base 2011-2013,2016 Harley-Davidson FLTRU Road Glide Ultra Base 2015-2016 Harley-Davidson FLTRX Road Glide Base 2010-2013 Harley-Davidson FLTRX Road Glide Custom Base 2015-2016 Harley-Davidson FLTRXS Road Glide Special Base 2008-2009 Harley-Davidson FXCW Rocker Base 2008-2011 Harley-Davidson FXCWC Rocker C Base 1999-2010 Harley-Davidson FXD Dyna Super Glide Base 2007-2017 Harley-Davidson FXDB Street Bob Base 2006 Harley-Davidson FXDBI Street Bob Base 2005,2007-2014 Harley-Davidson FXDC Super Glide Custom Base 2005-2006 Harley-Davidson FXDCI Super Glide Custom Base 2008-2017 Harley-Davidson FXDF Fat Bob Base 2006 Harley-Davidson FXDI Dyna Super Glide Base 1999-2005,2007-2009,2014-2017 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 1999-2008,2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base 2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base 1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base 2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base 2011-2013 Harley-Davidson FXS Blackline Base 2013-2017 Harley-Davidson FXSB Breakout 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 ## Details - **Price:** 59.51 CAD - **Vendor:** TwinPower - **Type:** O-Rings ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 59.51 CAD | In stock | ## Images - Photo - Primary --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-99-17-twin-except-110-cam-base-o-ring-replaces-h-d-11256-10pk) > Updated: 2026-07-14