All Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 degrees), and have a silicone jacket to reduce heat and chafing. Locking stainless steel terminals that stay connected under high vibration and are fully compatible with the Harley-Davidson ION sensing coils used on virtually all late model bikes. Moroso High Performance Ignition wire combines state of the art engineering with the finest made in the USA workmanship and the very highest standards of quality control available.
Spiral Core
Nylon Pull Tape provides unbeatable pull strength and terminal retention
Stainless steel alloy conductor greatly improves spark energy
8mm Silicone Jacket
Extra Thick EPDM Layer of Insulation provides greater dielectric strength
Poly-paraphenylene terephthalamide core that's four times stronger than Aramid cores
Locking Stainless Steel Plug Terminals
High-temperature silicone boots that can withstand heat up to 600 degrees
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Harley Davidson
FLH Electra Glide 1980-1984
FLHC Electra Glide Classic 1980-1981
FLHR Electra Glide Road King 1994
FLHR Road King 1995-2021
FLHRC Road King Classic 2007-2013
FLHRS Road King Custom 2004-2007
FLHRXS Road King Special 2017-2023
FLHS Electra Glide Sport 1980-1981, 1984, 1987-1993
