- Superior construction for serious power
- NGK makes plugs for almost every application and riding style
- Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot
- Features high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life
Fits:
| 2016 | Harley-Davidson | Fat Boy S FLSTFBS | - | - |
| 2016 | Harley-Davidson | Softail Slim S FLSS | - | - |
| 2016 | Harley-Davidson | Road Glide Ultra FLTRU | - | - |
| 2016 | Harley-Davidson | Breakout FXSB | - | - |
| 2015-2016 | Harley-Davidson | Electra Glide Ultra Limited Low FLHTKL | - | - |
| 2015-2016 | Harley-Davidson | Electra Glide Ultra Classic Low FLHTCUL | - | - |
| 2015-2016 | Harley-Davidson | Road Glide Special FLTRXS | - | - |
| 2015-2016 | Harley-Davidson | Freewheeler FLRT | - | - |
| 2015-2016 | Harley-Davidson | Road Glide Custom FLTRX | - | - |
| 2014-2016 | Harley-Davidson | Street Glide Special FLHXS | - | - |
| 2014-2016 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2013-2017 | Victory | Boardwalk | - | - |
| 2013-2015 | Harley-Davidson | Breakout FXSB | - | - |
| 2012-2016 | Harley-Davidson | Switchback FLD | - | - |
| 2012-2016 | Harley-Davidson | Softail Slim FLS | - | - |
| 2012-2016 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2012-2016 | Harley-Davidson | Softail Deluxe EFI FLSTNI | - | - |
| 2012-2016 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | - | - |
| 2012-2016 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | - | - |
| 2012-2016 | Harley-Davidson | Fat Boy Lo FLSTFB | - | - |
| 2012-2013 | Harley-Davidson | Blackline FXS | - | - |
| 2012 | Victory | Zack Ness Vegas | - | - |
| 2011-2017 | Victory | Vision Tour | - | - |
| 2011-2017 | Victory | Vegas 8-Ball | - | - |
| 2011-2017 | Victory | Hammer 8-Ball | - | - |
| 2011-2017 | Victory | Cross Country 8-Ball | - | - |
| 2011-2017 | Victory | Jackpot | - | - |
| 2011-2017 | Victory | Hammer | - | - |
| 2011-2016 | Victory | Cross Roads 8-Ball | - | - |
| 2011-2016 | Victory | Vision 106 Tour | - | - |
| 2011-2015 | Victory | Vision 8-Ball | - | - |
| 2011-2015 | Victory | Hammer 100 | - | - |
| 2011-2013 | Harley-Davidson | Road Glide Ultra FLTRU | - | - |
| 2011 | Harley-Davidson | Blackline FXS | - | - |
| 2011 | Harley-Davidson | Street Glide Trike FLHXXX | - | - |
| 2010-2020 | Honda | VT1300CX Fury | - | - |
| 2010-2019 | Honda | VT1300CX Fury ABS | - | - |
| 2010-2018 | Victory | Cross Country | - | - |
| 2010-2017 | Victory | Cross Country Tour | - | - |
| 2010-2017 | Victory | Cross Roads 106 | - | - |
| 2010-2017 | Victory | Cross Country 106 | - | - |
| 2010-2016 | Harley-Davidson | Electra Glide Ultra Limited FLHTK | - | - |
| 2010-2015 | Victory | Vision Arlen Ness Signature Series | - | - |
| 2010-2015 | Victory | Vegas Jackpot Cory Ness Signature Series | - | - |
| 2010-2015 | Victory | Vegas Jackpot Ness Signature Series | - | - |
| 2010-2013 | Harley-Davidson | Road Glide Custom FLTRX | - | - |
| 2010-2013 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2010-2011 | Harley-Davidson | Fat Boy Lo FLSTFB | - | - |
| 2010-2011 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2010 | Harley-Davidson | Street Glide Trike FLHXXX | - | - |
| 2009-2016 | Harley-Davidson | Tri Glide Ultra Classic FLHTCUTG | - | - |
| 2009-2016 | Harley-Davidson | Road King EFI FLHR | - | - |
| 2009-2016 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | - | - |
| 2009-2013 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | - | - |
| 2009 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2009 | Harley-Davidson | Road Glide EFI FLTR | - | - |
| 2008-2017 | Victory | Hammer S | - | - |
| 2008-2017 | Victory | Hammer 106 S | - | - |
| 2008-2017 | Victory | Kingpin 8-Ball | - | - |
| 2008-2017 | Victory | Vision | - | - |
| 2008-2017 | Victory | Kingpin | - | - |
| 2008-2016 | Victory | Vegas Jackpot | - | - |
| 2008-2016 | Harley-Davidson | Fat Bob FXDF | - | - |
| 2008-2016 | Victory | Vision 106 | - | - |
| 2008-2016 | Victory | Vision 106 Street | - | - |
| 2008-2016 | Harley-Davidson | Street Bob FXDB | - | - |
| 2008-2015 | Victory | Kingpin 100 Deluxe | - | - |
| 2008-2015 | Victory | Kingpin 100 Low | - | - |
| 2008-2015 | Victory | Kingpin 100 Tour | - | - |
| 2008-2015 | Victory | Kingpin 100 | - | - |
| 2008-2014 | Harley-Davidson | Super Glide Custom EFI FXDCI | - | - |
| 2008-2013 | Victory | Vegas Low | - | - |
| 2008-2011 | Harley-Davidson | Softail Rocker C FXCWC | - | - |
| 2008-2011 | Harley-Davidson | Softail Cross Bones FLSTSB | - | - |
| 2008-2010 | Harley-Davidson | Super Glide EFI FXDI | - | - |
| 2008-2009, 2015-2016 | Harley-Davidson | Low Rider EFI FXDL | - | - |
| 2008-2009 | Harley-Davidson | Softail Rocker FXCW | - | - |
| 2008 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2007-2011 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | - | - |
| 2007-2011 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | - | - |
| 2007-2011 | Harley-Davidson | Softail Deluxe EFI FLSTNI | - | - |
| 2007-2010 | Harley-Davidson | Softail Custom EFI FXSTC | - | - |
| 2007-2009 | Harley-Davidson | Softail Night Train EFI FXSTBI | - | - |
| 2007-2008 | Harley-Davidson | Road Glide EFI FLTR | - | - |
| 2007-2008 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | - | - |
| 2007-2008 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2007-2008 | Harley-Davidson | Road King EFI FLHR | - | - |
| 2007-2008 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | - | - |
| 2007 | Harley-Davidson | Road King Custom EFI FLHRS | - | - |
| 2007 | Harley-Davidson | Super Glide Custom EFI FXDCI | - | - |
| 2007 | Harley-Davidson | Super Glide EFI FXDI | - | - |
| 2007 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2007 | Harley-Davidson | Street Bob FXDB | - | - |
| 2007 | Harley-Davidson | Softail Deuce EFI FXSTDI | - | - |
| 2007 | Harley-Davidson | Low Rider EFI FXDL | - | - |
| 2007 | Harley-Davidson | Softail Standard EFI FXSTI | - | - |
| 2006 | Harley-Davidson | Street Glide FLHX | - | - |
| 2006 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2006 | Harley-Davidson | Softail Heritage EFI FLSTI | - | - |
| 2006 | Harley-Davidson | Super Glide FXD35 | - | - |
| 2006 | Harley-Davidson | Street Bob FXDB | - | - |
| 2006 | Harley-Davidson | Softail Night Train EFI FXSTBI | - | - |
| 2006 | Harley-Davidson | Softail Standard FXST | - | - |
| 2006 | Harley-Davidson | Softail Springer EFI FXSTSI | - | - |
| 2006 | Harley-Davidson | Softail Springer FXSTS | - | - |
| 2006 | Harley-Davidson | Softail Night Train FXSTB | - | - |
| 2006 | Harley-Davidson | Softail Standard EFI FXSTI | - | - |
| 2006 | Harley-Davidson | Super Glide EFI FXDI | - | - |
| 2006 | Harley-Davidson | Softail Heritage FLST | - | - |
| 2006 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2006 | Harley-Davidson | Super Glide Custom EFI FXDCI | - | - |
| 2005-2007 | Harley-Davidson | Softail Springer Classic EFI FLSTSCI | - | - |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTN | - | - |
| 2005-2006 | Harley-Davidson | Softail Deluxe EFI FLSTNI | - | - |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSC | - | - |
| 2005 | Harley-Davidson | Super Glide Custom EFI FXDCI | - | - |
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF | - | - |
| 2005 | Harley-Davidson | Super Glide Custom FXDC | - | - |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRS | - | - |
| 2004-2006 | Harley-Davidson | Road King Custom EFI FLHRS | - | - |
| 2004-2006 | Harley-Davidson | Electra Glide Standard FLHT | - | - |
| 2004-2006 | Harley-Davidson | Road King Classic EFI FLHRC | - | - |
| 2004-2006 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | - | - |
| 2004-2006 | Harley-Davidson | Road King FLHR | - | - |
| 2004-2006 | Harley-Davidson | Softail Heritage Classic FLSTC | - | - |
| 2004-2006 | Harley-Davidson | Softail Fat Boy FLSTF | - | - |
| 2004-2006 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | - | - |
| 2004-2006 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | - | - |
| 2004-2006 | Harley-Davidson | Electra Glide Standard EFI FLHTI | - | - |
| 2004-2006 | Harley-Davidson | Road Glide EFI FLTR | - | - |
| 2004-2005 | Harley-Davidson | Super Glide EFI FXDI | - | - |
| 2004-2005 | Harley-Davidson | Super Glide Sport EFI FXDXI | - | - |
| 2004-2005 | Harley-Davidson | Electra Glide Classic FLHTC | - | - |
| 2004-2005 | Harley-Davidson | Wide Glide EFI FXDWGI | - | - |
| 2003-2007 | Honda | VTX1300S | - | - |
| 2003-2005 | Harley-Davidson | Softail Night Train EFI FXSTBI | - | - |
| 2003-2005 | Harley-Davidson | Softail Springer FXSTS | - | - |
| 2003-2005 | Harley-Davidson | Softail Night Train FXSTB | - | - |
| 2003-2005 | Harley-Davidson | Softail Springer EFI FXSTSI | - | - |
| 2003-2005 | Harley-Davidson | Softail Standard FXST | - | - |
| 2003-2005 | Harley-Davidson | Softail Standard EFI FXSTI | - | - |
| 2003 | Harley-Davidson | Electra Glide Standard EFI FLHTI | - | - |
| 2003 | Harley-Davidson | Softail Heritage Springer EFI FLSTSI | - | - |
| 2003 | Harley-Davidson | Softail Heritage Springer FLSTS | - | - |
| 2002-2005 | Harley-Davidson | Wide Glide FXDWG | - | - |
| 2002-2005 | Harley-Davidson | Low Rider FXDL | - | - |
| 2002-2005 | Harley-Davidson | Super Glide FXD | - | - |
| 2002-2003 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | - | - |
| 2002-2003 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | - | - |
| 2001-2006 | Harley-Davidson | Softail Deuce EFI FXSTDI | - | - |
| 2001-2003 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | - | - |
| 2001-2002 | Harley-Davidson | Softail Heritage Springer EFI FLSTSI | - | - |
| 2001-2002 | Harley-Davidson | Softail Night Train EFI FXSTBI | - | - |
| 2001-2002 | Harley-Davidson | Softail Standard EFI FXSTI | - | - |
| 2001-2002 | Harley-Davidson | Softail Springer EFI FXSTSI | - | - |
| 2000-2006 | Harley-Davidson | Softail Deuce FXSTD | - | - |
| 2000-2003 | Harley-Davidson | Softail Heritage Classic FLSTC | - | - |
| 2000-2003 | Harley-Davidson | Softail Fat Boy FLSTF | - | - |
| 2000-2002 | Harley-Davidson | Softail Springer FXSTS | - | - |
| 2000-2002 | Harley-Davidson | Softail Night Train FXSTB | - | - |
| 2000-2002 | Harley-Davidson | Softail Standard FXST | - | - |
| 2000-2002 | Harley-Davidson | Softail Heritage Springer FLSTS | - | - |
| 2000-2001 | Victory | V 92 SC | - | - |
| 2000-2001 | Victory | V 92 TC Deluxe | - | - |
| 2000-2001 | Victory | V 92 TC | - | - |
| 1999-2005 | Harley-Davidson | Super Glide Sport FXDX | - | - |
| 1999-2003 | Harley-Davidson | Road King FLHR | - | - |
| 1999-2003 | Harley-Davidson | Road Glide EFI FLTR | - | - |
| 1999-2003 | Harley-Davidson | Road King Classic EFI FLHRC | - | - |
| 1999-2003 | Harley-Davidson | Electra Glide Standard FLHT | - | - |
| 1999-2003 | Harley-Davidson | Electra Glide Classic FLHTC | - | - |
| 1999-2002 | Victory | V 92 | - | - |
| 1999-2002 | Harley-Davidson | Road Glide FLTR | - | - |
| 1999-2001 | Victory | V 92 C Deluxe | - | - |
| 1999-2001 | Harley-Davidson | Road King EFI FLHR | - | - |
| 1999-2001 | Victory | V 92 C SE | - | - |
| 1999-2001 | Victory | V 92 C | - | - |
| 1999-2001 | Harley-Davidson | Wide Glide FXDWG | - | - |
| 1999-2001 | Harley-Davidson | Low Rider FXDL | - | - |
| 1999-2001 | Harley-Davidson | Super Glide FXD | - | - |
| 1999-2000 | Harley-Davidson | Dyna Convertible FXDS-CONV | - | - |
| 1999 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | - | - |
| 1998-2001 | Victory | Cruiser Deluxe Touring | - | - |
| 1998-2001 | Victory | Cruiser Touring | - | - |
| 1998-2001 | Victory | Cruiser Classic | - | - |
| 1998-2001 | Victory | Cruiser Deluxe |