SUMAX 409 Pro Race Custom-Fit Spark Plug Wire Kit — 16" (40.5 cm), 10.4 mm – 80-98 Touring, 86-03 Sportster

Designer plug wire sets deliver striking visual appeal and proven performance. These precut wires come with plug and coil boots plus terminals already installed for fast, accurate fitment. Boots and wires use extra-high-temperature silicone that protects components up to 600°F, while a Spiro-Pro core offers significantly higher conductivity than standard carbon-core wire. Lower resistance means cooler operation and longer life, and the set is engineered for electronic ignitions while remaining compatible with point-type systems. Made in the USA. 🔧⚡

• Precut with boots and terminals installed for quick installation
• Extra-high-temperature silicone boots and wires
• Spiro-Pro core for superior conductivity and longevity
• Works with electronic and point-type ignitions

Upgrade your ignition wiring to improve spark delivery, reduce heat, and extend service intervals.