SUMAX Custom-Fit Spark Plug Wire Kit — 40.5 cm (16"), 8 mm, Blue – 70-86 Big Twin, 80-85, 89, 99 Touring, 85-99 Softail, 91-98 Dyna, 87-94 FXR, 70-85 Sportster

Custom-fit spark plug wire kits engineered for performance and durability. 🔧🇺🇸

• Designer plug wire sets come in distinctive, highly visible colors.
• Precut with the plug and coil boots and terminals already installed for fast, accurate installation.
• Boots and wires are made from extra-high-temperature silicone, protecting up to 600°F.
• Spiro-Pro core provides up to 10 times the conductivity of a standard carbon-core wire.
• Low resistance lets the wires run cooler and last three to four times longer than carbon-core designs.
• Designed for electronic ignitions and also work well on point-type systems.
• Made in the USA.

These kits deliver reliable spark transfer, reduced heat soak and improved ignition consistency for better throttle response and smoother operation.