GMC Sierra 2500 HD Spark Plug

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      Gmc Sierra-2500-hd Spark Plug Comparison Chart

      YearOE MetalGapAmount Required
      2022
      Iridium
      -
      8
      2021
      Iridium
      -
      8
      2020
      Iridium
      -
      8
      2019
      Iridium
      -
      8
      2018
      Iridium
      -
      8
      2017
      Iridium
      -
      8
      2016
      Iridium
      -
      8
      2015
      Iridium
      -
      8
      2014
      Iridium
      -
      8
      2013
      Iridium
      -
      8
      2012
      Iridium
      0.04
      8
      2011
      Iridium
      0.04
      8
      2010
      Iridium
      0.04
      8
      2009
      Iridium
      0.04
      8
      2008
      Iridium
      0.04
      8
      2007
      Iridium
      0.04
      8
      2006
      Double Platinum
      Iridium
      0.04
      0.06
      8
      2005
      Double Platinum
      Iridium
      0.04
      0.06
      8
      2004
      Double Platinum
      Iridium
      0.04
      0.06
      8
      2003
      Double Platinum
      Iridium
      0.04
      0.06
      8
      2002
      Double Platinum
      Iridium
      0.04
      0.06
      8
      2001
      Double Platinum
      Iridium
      0.04
      0.06
      8
      *Varies based on submodel and engine type