Moroso High Performance Ultra 40 Ignition Wire - 40/SET 2007-2019 XL — Harley-Davidson Sportster 1200 Custom, Super Low, Iron 883 (2007-2017)

Moroso High Performance Ultra 40 ignition wires for 2007-2019 Harley Sportster models, featuring DuPont Kevlar cores and nickel-copper conductors designed for maximum spark energy transfer. Fully compatible with Harley's ION sensing ignition coils and built with silicone boots rated to 600°F.

Features

• 8.65mm diameter with 40 ohms per foot resistance
• DuPont Kevlar core — four times stronger than standard aramid cores
• Nickel-copper alloy conductors for superior spark energy
• Extra-thick EPDM dielectric layer for insulation strength
• High-temperature silicone boots rated to 600°F
• Locking stainless steel terminals resist vibration loosening
• 100% compatible with Harley ION sense ignition coils

Specifications

• Brand: Moroso
• Manufacturer Part #: 28331
• UPC: 84663283314
• Resistance: 40 ohms per foot
• Wire Diameter: 8.65mm
• Length: 9 in
• Weight: 0.29 lbs
• Country of Origin: USA

Fitment

Fits 2007-2019 Harley-Davidson Sportster models equipped with ION sensing ignition coils.

Frequently Asked Questions

Are these compatible with my Sportster's ION coils?

Yes — Moroso Ultra 40 wires are 100% compatible with Harley ION sense ignition coil systems on 2007-2019 Sportsters.

What makes the 40 ohm resistance important?

40 ohms per foot is the ideal resistance spec for modern ION coils — it balances spark energy transfer with electromagnetic noise suppression for reliable ignition.

Will the silicone boots hold up to engine heat?

Yes — the silicone boots are rated to 600°F, far exceeding typical engine bay temperatures and standard wire boot materials.

Do the terminals stay tight under vibration?

Yes — the locking stainless steel terminals are engineered to resist loosening from high vibration and engine cycling.

Are these made in the USA?

Yes — Moroso High Performance wires are manufactured in the USA to strict quality standards.