Sumax S49638 Spark Plug Wire Set Pro Blue 2018+ Harley Softail

The Sumax S49638 Pro Series Spark Plug Wire Set is a high-performance ignition wire set designed specifically for 2018 and newer Harley-Davidson Softail models. Engineered to deliver a stronger, more consistent spark, these blue spiral-wound wires are a direct-fit replacement that upgrades ignition performance over the factory stock wires.

Sumax Pro Series wires feature a multi-layer suppression core that minimizes electromagnetic interference (EMI) without sacrificing spark energy delivery. The result is cleaner combustion, improved throttle response, and reliable starting in all conditions.

Key Features:

• Designed for 2018+ Harley-Davidson Softail applications
• Pro Blue finish with high-visibility color-matched boots
• Spiral-wound suppression core reduces EMI/RFI interference
• High-dielectric silicone jacket resists heat, oil, and abrasion
• Direct OEM-replacement fit — no modifications required
• Sold as a complete set

Whether you're restoring lost performance or simply replacing aging wires, the Sumax S49638 Pro Series set provides a dependable, factory-correct fit with a noticeable performance upgrade over stock ignition components.