All Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600°), 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.

Suppression

• Nylon Pull Tape provides unbeatable pull strength and terminal retention.        
• Glass center Core offers high tensile strength
• 8mm Silicone Jacket
• Extra Thick EPDM Layer of Insulation provides greater dielectric strength
• Locking Stainless Steel Plug Terminals
• High-temperature silicone boots that can withstand heat up to 600 degrees

 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
• aramid fiber® 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
• Ferrite Impregnated Core tunes EMI Suppression characteristics

Ultra 40

• 8.65mm diameter, 40 ohms per foot resistance

Features of these 8.65mm wires include:

• 100% Compatible with  HD’s ION Sense Ignition Coils
• aramid fiber® core that's four times stronger than Aramid cores
• Class-leading 40 ohms of resistance per foot
• Nickel copper alloy conductors for superior spark energy transfer
• Extra-thick EPDM layer for greater dielectric strength
•  High-temperature silicone boots that can withstand heat up to 600 degrees
•  Locking stainless steel plug terminals

PROP 65 WARNING: Cancer and/or reproductive harm - www.P65Warnings.ca.gov