High performance 8mm wire-wound suppression core produces 300 ohms of resistance per foot. Equipped with the highest quality silicone spark plug boots and coil boots and double insulated at the spark plug and coil ends Ready to install
The Ultima 8mm High Performance Spark Plug Wire Set, part number 18-578, is designed specifically for Harley Davidson motorcycles, ensuring reliable ignition performance. Crafted with stainless steel spring clip terminals, these wires feature a post snap lock connection that guarantees a secure fit and optimal electrical contact. The silicone over fiberglass braiding covers the entire length of each wire, providing exceptional insulation and protection against high temperatures up to 600°F. This robust insulation layer helps eliminate spark misfire and jump, resulting in smoother engine operation and improved ignition reliability. Ideal for high-performance applications, these wires are engineered to withstand the demanding conditions of motorcycle engines. The set is suitable for a range of Harley Davidson models, including the FXST, FLST, FXD, FXDWG, and FXDWG, spanning model years from 2001 to 2017. Each set offers comprehensive coverage to ensure consistent ignition performance across your motorcycle's engine system. Whether you're restoring or upgrading your Harley Davidson, these wires provide the durability and electrical integrity necessary for optimal performance. Built in the USA, Ultima's high-quality components promise long-lasting reliability and superior engine response for motorcycle enthusiasts and mechanics alike.
Features:
- Post snap lock stainless steel spring clip terminals for secure connection
- Silicone over fiberglass braiding covers entire wire length for insulation
- Provides 8,000 volts of additional insulation to prevent spark misfire and jump
- Resists temperatures up to 600°F for high-performance durability
- Designed for Harley Davidson models including FXST, FLST, FXD, FXDWG from 2001 to 2017
Fitment
Harley Davidson FLST 1999
Harley Davidson FLST 2000
Harley Davidson FLST 2001
Harley Davidson FLST 2002
Harley Davidson FLST 2003
Harley Davidson FLST 2004
Harley Davidson FLST 2005
Harley Davidson FLST 2006
Harley Davidson FLST 2007
Harley Davidson FLST 2008
Harley Davidson FLST 2009
Harley Davidson FLST 2010
Harley Davidson FLST 2011
Harley Davidson FLST 2012
Harley Davidson FLST 2013
Harley Davidson FLST 2014
Harley Davidson FLST 2015
Harley Davidson FLST 2016
Harley Davidson FLST 2017
Harley Davidson FXD 1999
Harley Davidson FXD 2000
Harley Davidson FXD 2001
Harley Davidson FXD 2002
Harley Davidson FXD 2003
Harley Davidson FXD 2004
Harley Davidson FXD 2005
Harley Davidson FXD 2006
Harley Davidson FXD 2007
Harley Davidson FXD 2008
Harley Davidson FXD 2009
Harley Davidson FXD 2010
Harley Davidson FXD 2011
Harley Davidson FXD 2012
Harley Davidson FXD 2013
Harley Davidson FXD 2014
Harley Davidson FXD 2015
Harley Davidson FXD 2016
Harley Davidson FXD 2017
Harley Davidson FXDWG 1999
Harley Davidson FXDWG 2000
Harley Davidson FXDWG 2001
Harley Davidson FXDWG 2002
Harley Davidson FXDWG 2003
Harley Davidson FXDWG 2004
Harley Davidson FXDWG 2005
Harley Davidson FXDWG 2006
Harley Davidson FXDWG 2007
Harley Davidson FXDWG 2008
Harley Davidson FXDWG 2009
Harley Davidson FXDWG 2010
Harley Davidson FXDWG 2011
Harley Davidson FXDWG 2012
Harley Davidson FXDWG 2013
Harley Davidson FXDWG 2014
Harley Davidson FXDWG 2015
Harley Davidson FXDWG 2016
Harley Davidson FXDWG 2017
Harley Davidson FXST 1999
Harley Davidson FXST 2000
Harley Davidson FXST 2001
Harley Davidson FXST 2002
Harley Davidson FXST 2003
Harley Davidson FXST 2004
Harley Davidson FXST 2005
Harley Davidson FXST 2006
Harley Davidson FXST 2007
Harley Davidson FXST 2008
Harley Davidson FXST 2009
Harley Davidson FXST 2010
Harley Davidson FXST 2011
Harley Davidson FXST 2012
Harley Davidson FXST 2013
Harley Davidson FXST 2014
Harley Davidson FXST 2015
Harley Davidson FXST 2016
Harley Davidson FXST 2017
