Moroso High Performance Ultra 40 Ignition Wire - 40/SET 1986-2003 XL (ex 1200s) — Harley-Davidson (1986-2003)

Moroso High Performance Ultra 40 ignition wire set for 1986–2003 Harley Sportster (excluding 1200cc models), engineered with 40 ohms per foot resistance and DuPont Kevlar core for superior spark energy transfer. Silicone boots rated to 600°F and locking stainless steel terminals ensure reliable cold starts and consistent ignition under vibration.

Features

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

Specifications

• Brand: Moroso
• Manufacturer Part #: 28325
• UPC: 84663283253
• Resistance: 40 ohms per foot
• Conductor: Nickel copper alloy with DuPont Kevlar core
• Boot Rating: Up to 600°F
• Weight: 0.24 lbs

Fitment

Fits 1986–2003 Harley-Davidson Sportster models. Does not fit 1200cc Sportster variants.

Frequently Asked Questions

Will these work with my Harley's ION sense ignition coils?

Yes — 100% compatible with Harley ION sense coils on virtually all late-model bikes using this fitment.

What makes the 40 ohm resistance important?

40 ohms per foot is Moroso's class-leading spec for optimal spark energy transfer and reliable ignition across RPM ranges.

Do these fit 1200cc Sportsters?

No — this set is for 1986–2003 Sportster XL models, excluding the 1200cc variant. Check your engine displacement before ordering.

Are the silicone boots really rated to 600 degrees?

Yes — high-temperature silicone construction withstands up to 600°F, resisting heat and chafing from the engine.

What's the core material?

DuPont Kevlar core — four times stronger than standard Aramid cores for durability under vibration.