Moroso High Performance Suppression Ignition Wire - Core/SET 1999-2017 FXD — Harley-Davidson (1999-2017)

Moroso High Performance suppression ignition wire set for 1999-2017 Harley-Davidson Dyna models, featuring a glass center core with 8mm silicone jacket and silicone plug boots rated to 600°F. Built with locking stainless steel terminals designed for compatibility with Harley's ION sensing coils and engineered to resist vibration and heat damage.

Features

• Glass center core with high tensile strength
• 8mm silicone jacket reduces heat and chafing
• Extra thick EPDM insulation layer for greater dielectric strength
• Silicone plug boots withstand temperatures up to 600°F
• Locking stainless steel plug terminals stay connected under vibration
• Nylon pull tape for unbeatable pull strength and terminal retention
• Made in the USA

Specifications

• Brand: Moroso
• Manufacturer Part #: 27166
• UPC: 84663271663
• Wire Length: 13.5 in
• Weight: 0.625 lbs

Fitment

Fits 1999-2017 Harley-Davidson Dyna (FXD) models equipped with ION sensing coils.

Frequently Asked Questions

Will these work with my Harley's stock ION coils?

Yes — these wires are fully compatible with Harley-Davidson ION sensing coils used on virtually all late-model bikes.

What makes these different from stock plug wires?

Moroso wires use a glass center core, thicker EPDM insulation, and locking stainless terminals for better heat resistance and vibration durability than OEM wires.

Do I need to replace both wires at once?

This is a complete set for your Dyna. Moroso recommends replacing as a pair to ensure consistent ignition timing.

Will the silicone boots hold up to heat near the engine?

Yes — the silicone boots are rated to withstand continuous temperatures up to 600°F, well above typical engine heat exposure.