Featuring a 98% pure copper core and high-grade alumina silicate ceramic for improved throttle response, service life and performance.
Cold-rolled threads
Trivalent plating
Specialized ground electrode designs

Fitment
2015 Indian Roadmaster
2016 Indian Roadmaster
2017 Indian Roadmaster
2016 Indian Springfield
2017 Indian Springfield
2017 Indian Chieftain Dark Horse
2005 Harley Davidson VRSCSE CVO V-Rod
2006 Harley Davidson VRSCSE CVO V-Rod
2002 Harley Davidson VRSCA V-Rod
2003 Harley Davidson VRSCA V-Rod
2004 Harley Davidson VRSCA V-Rod
2005 Harley Davidson VRSCA V-Rod
2006 Harley Davidson VRSCA V-Rod
2007 Harley Davidson VRSCAW V-Rod
2008 Harley Davidson VRSCAW V-Rod
2009 Harley Davidson VRSCAW V-Rod
2010 Harley Davidson VRSCAW V-Rod
2005 Harley Davidson VRSCB V-Rod
2004 Harley Davidson VRSCB V-Rod
2009 Harley Davidson VRSCF V-Rod Muscle
2010 Harley Davidson VRSCF V-Rod Muscle
2011 Harley Davidson VRSCF V-Rod Muscle
2012 Harley Davidson VRSCF V-Rod Muscle
2013 Harley Davidson VRSCF V-Rod Muscle
2014 Harley Davidson VRSCF V-Rod Muscle
2015 Harley Davidson VRSCF V-Rod Muscle
2016 Harley Davidson VRSCF V-Rod Muscle
2017 Harley Davidson VRSCF V-Rod Muscle
2014 Indian Chief Classic
2015 Indian Chief Classic
2016 Indian Chief Classic
2017 Indian Chief Classic
2016 Indian Chief Dark Horse
2017 Indian Chief Dark Horse
2014 Indian Chief Vintage
2015 Indian Chief Vintage
2016 Indian Chief Vintage
2017 Indian Chief Vintage
2014 Indian Chieftain
2015 Indian Chieftain
2016 Indian Chieftain
2017 Indian Chieftain
2017 Indian Chieftain Elite
2017 Indian Chieftain Limited
2017 Indian Roadmaster Classic
2018 Indian Chief
2018 Indian Chief Classic
2018 Indian Chief Dark Horse
2018 Indian Chief Vintage
2018 Indian Chieftain
2018 Indian Chieftain Dark Horse
2018 Indian Chieftain Limited
2018 Indian Chieftain Classic
2018 Indian Roadmaster
2018 Indian Roadmaster Classic
2018 Indian Roadmaster Elite
2018 Indian Springfield
2018 Indian Springfield Dark Horse
2019 Indian Chief Dark Horse
2019 Indian Chief Vintage
2019 Indian Chieftain
2019 Indian Chieftain Classic
2019 Indian Chieftain Dark Horse
2019 Indian Chieftain Limited
2019 Indian Roadmaster
2019 Indian Springfield
2019 Indian Springfield Dark Horse
2019 Indian Chief Classic
2019 Indian Roadmaster Elite
2020 Indian Chief Vintage
2020 Indian Chief Dark Horse
2020 Indian Chieftain
2020 Indian Chieftain Classic
2020 Indian Chieftain Dark Horse
2020 Indian Chieftain Elite
2020 Indian Chieftain Limited
2020 Indian Roadmaster
2020 Indian Roadmaster Elite
2020 Indian Springfield Dark Horse
2020 Indian Roadmaster Dark Horse
2021 Indian Chief Vintage
2021 Indian Springfield
2021 Indian Springfield Dark Horse
2021 Indian Chieftain Dark Horse
2021 Indian Chieftain Limited
2021 Indian Roadmaster
2021 Indian Roadmaster Dark Horse
2021 Indian Chieftain Elite
2022 Indian Chief
2022 Indian Super Chief Limited
2022 Indian Chief Bobber Dark Horse
2022 Indian Chief Bobber
2021 Indian Chief Vintage Dark Horse
2018 Indian Chieftain Elite
2021 Indian Roadmaster Limited
2022 Indian Super Chief