The Copper Core Spark Plugs Tc/Xl High Performance by ACCEL are a game-changer in the world of spark plugs. These spark plugs are designed to create a considerably hotter spark, allowing the flame to expand more rapidly in the combustion chamber. The unique design of these spark plugs allows the spark to expand directly above the midpoint of the electrode core, preventing it from being shrouded by the ground strap. This creates an unblocked area for the flame to grow, resulting in a larger flame front for a more complete burn.

One of the key benefits of the Copper Core Spark Plugs Tc/Xl High Performance is the reduction of excess heat absorption of the electrode and ground strap, also known as the “quenching effect”. This reduction helps prevent misfiring, rough idle, and overall poor performance. Additionally, these spark plugs produce a larger spark nucleus without the need to increase the spark gap, resulting in a more complete burn of the air-fuel mixture. This leads to increased performance, improved throttle response, greater fuel efficiency, and reduced emissions.

The fitment of these spark plugs is extensive, covering a wide range of Harley Davidson models from various years. Whether you have a Harley Davidson FLD Dyna Switchback, FLHR Road King, FLST Softail, or any other compatible model, the Copper Core Spark Plugs Tc/Xl High Performance are sure to enhance your riding experience.

Features:

• ACCEL C-Cut Copper Spark Plugs creates a considerably hotter spark that lets the flame expand more rapidly in the combustion chamber
• Allows spark to expand directly above the midpoint of the electrode core – preventing the spark from being shrouded by the ground strap
• Gives the flame an unblocked area to grow – creates a larger flame front for a more complete burn
• Reduces excess heat absorption of the electrode and ground strap, also known as the “quenching effect”, which leads to misfiring, rough idle and overall poor performance
• Produces a larger spark nucleus without having to increase the spark gap
• Creates a more complete burn of the air-fuel mixture resulting in increased performance, improved throttle response, greater fuel efficiency and reduced emissions

The Copper Core Spark Plugs Tc/Xl High Performance are a must-have upgrade for any Harley Davidson enthusiast looking to maximize the performance of their ride.

Fitment:
Harley Davidson FLD Dyna Switchback 2012
Harley Davidson FLD Dyna Switchback 2013
Harley Davidson FLD Dyna Switchback 2014
Harley Davidson FLD Dyna Switchback 2016
Harley Davidson FLHR Road King 2002
Harley Davidson FLHR Road King 2007
Harley Davidson FLHR Road King 2008
Harley Davidson FLHR Road King 2010
Harley Davidson FLHR Road King 2011
Harley Davidson FLHR Road King 2012
Harley Davidson FLHR Road King 2013
Harley Davidson FLHR Road King 2014
Harley Davidson FLHRC Road King Classic 2000
Harley Davidson FLHRC Road King Classic 2001
Harley Davidson FLHRC Road King Classic 2003
Harley Davidson FLHRC Road King Classic 2006
Harley Davidson FLHRC Road King Classic 2008
Harley Davidson FLHRC Road King Classic 2013
Harley Davidson FLHRS Road King Custom 2004
Harley Davidson FLHRS Road King Custom 2005
Harley Davidson FLHRS Road King Custom 2006
Harley Davidson FLHRSE CVO Road King 2003
Harley Davidson FLHRSE CVO Road King 2008
Harley Davidson FLHT Electra Glide 1999
Harley Davidson FLHT Electra Glide 2001
Harley Davidson FLHT Electra Glide 2003
Harley Davidson FLHT Electra Glide 2005
Harley Davidson FLHT Electra Glide 2006
Harley Davidson FLHT Electra Glide 2007
Harley Davidson FLHT Electra Glide 2008
Harley Davidson FLHTC Electra Glide Classic 1999
Harley Davidson FLHTC Electra Glide Classic 2002
Harley Davidson FLHTC Electra Glide Classic 2009
Harley Davidson FLHTC Electra Glide Classic 2011
Harley Davidson FLHTC Electra Glide Classic 2012
Harley Davidson FLHTCU Electra Glide Ultra Classic 1999
Harley Davidson FLHTCU Electra Glide Ultra Classic 2000
Harley Davidson FLHTCU Electra Glide Ultra Classic 2001
Harley Davidson FLHTCU Electra Glide Ultra Classic 2003
Harley Davidson FLHTCU Electra Glide Ultra Classic 2005
Harley Davidson FLHTCU Electra Glide Ultra Classic 2006
Harley Davidson FLHTCU Electra Glide Ultra Classic 2007
Harley Davidson FLHTCU Electra Glide Ultra Classic 2012
Harley Davidson FLHTCU Electra Glide Ultra Classic 2013
Harley Davidson FLHTCU Electra Glide Ultra Classic 2014
Harley Davidson FLHTCU Electra Glide Ultra Classic 2015
Harley Davidson FLHTCU Electra Glide Ultra Classic 2016
Harley Davidson FLHTCUL Electra Glide Ultra Classic Low 2015
Harley Davidson FLHTCUL Electra Glide Ultra Classic Low 2016
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2006
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2007
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2008
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2009
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2010
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2011
Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic 2012
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2010
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2011
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2012
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2013
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2015
Harley Davidson FLHTK Electra Glide Ultra Limited 2010
Harley Davidson FLHTK Electra Glide Ultra Limited 2011
Harley Davidson FLHTK Electra Glide Ultra Limited 2013
Harley Davidson FLHTK Electra Glide Ultra Limited 2014
Harley Davidson FLHTK Electra Glide Ultra Limited 2015
Harley Davidson FLHTKL Electra Glide Ultra Limited Low 2015
Harley Davidson FLHTKL Electra Glide Ultra Limited Low 2016
Harley Davidson FLHTKSE CVO Limited 2015
Harley Davidson FLHTKSE CVO Limited 2016
Harley Davidson FLHX