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 18-429 8mm High Performance Spark Plug Wire Set is designed specifically for Harley Davidson motorcycles, offering reliable spark delivery and enhanced insulation. These side-mount wires attach to the coil behind the engine, ensuring a secure fit and optimal performance. Equipped with stainless steel spring clip terminals featuring post snap lock design, these wires provide a durable and corrosion-resistant connection that withstands harsh conditions. The silicone over fiberglass braiding covers the entire length of the wire from boot to boot, delivering superior insulation and protection against electrical interference. With an insulation rating of up to 8,000 volts, these wires effectively eliminate spark misfire and jump, promoting smooth engine operation and improved throttle response. Made in the USA, the Ultima spark plug wire set is engineered to resist temperatures up to 600°F, ensuring reliable performance in demanding riding conditions. Compatibility spans multiple Harley Davidson models from 2001 to 2017, making it a versatile choice for riders seeking a high-quality ignition upgrade.
Features:
- Wire type: Side mount design for easy installation behind the engine
- Terminals: Post snap lock stainless steel spring clip for secure connection
- Insulation: Silicone over fiberglass braiding covering entire wire length for maximum protection
- Voltage rating: Supports up to 8,000 volts to prevent misfire and spark jump
- Temperature resistance: Capable of withstanding temperatures up to 600°F
- Country of origin: Assembled in the USA for quality assurance
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
