SUMAX Custom-Fit Spark Plug Wire Kit — 8 mm, 40.5 cm (16 in), black – 70-86 Big Twin, 80-84, 89, 99 Touring, 85-99 Softail, 91-98 Dyna, 87-94 FXR, 70-85 Sportster

The Custom-Fit Spark Plug Wire Kit delivers reliable ignition performance with race-inspired design and proven electrical technology. 🔧✨

• Designer plug wire sets come in distinctive, highly visible colors for easy routing and identification.
• Precut with the plug and coil boots and terminals already installed for quick, accurate installation.
• Boots and wires are made from extra-high-temperature silicone, offering protection up to 600°F.
• The Spiro-Pro core provides up to ten times the conductivity of a standard carbon-core wire, ensuring strong spark delivery.
• Low resistance reduces heat and helps the wires last three to four times longer than carbon-core alternatives.
• Designed for electronic ignitions but also performs well with point-type systems.
• Made in the USA.

Perfect for restorations and performance builds, this kit combines durability, ease of installation, and superior electrical performance for dependable starts and smooth running.