Moroso High Performance Suppression Ignition Wire - Core/SET 1971-1978 XL — Harley-Davidson Sportster 1000 (1972-1978)

Moroso High Performance Suppression ignition wire set for 1971-1978 Harley-Davidson Sportster, built with a glass-reinforced core and silicone jacket to resist heat and vibration. Locking stainless steel terminals and silicone plug boots rated to 600° keep spark delivery clean and reliable.

Features

• Glass center core with high tensile strength
• 8mm silicone jacket reduces heat and chafing
• Extra-thick EPDM insulation layer for greater dielectric strength
• Locking stainless steel plug terminals
• High-temperature silicone plug boots (600° rated)
• Nylon pull tape for terminal retention
• Made in the USA

Specifications

• Brand: Moroso
• Manufacturer Part #: 27284
• UPC: 84663272844
• Core Type: Glass center core
• Jacket: 8mm silicone
• Terminals: Locking stainless steel
• Length: 8.5 in
• Width: 6.25 in
• Height: 1.35 in
• Weight: 0.211 lbs

Fitment

Fits 1971-1978 Harley-Davidson Sportster (XL) models. Also compatible with Harley ION sensing coils used on late-model bikes.

Frequently Asked Questions

What years does this fit?

1971-1978 Harley-Davidson Sportster (XL). Also works with modern Harley ION sensing coils.

Will these work with my newer Harley?

Yes — Moroso confirms these wires are compatible with ION sensing coils on virtually all late-model Harleys.

How hot can the silicone boots handle?

The silicone plug boots are rated to withstand temperatures up to 600 degrees Fahrenheit.

What makes these better than stock wires?

Moroso uses a glass-reinforced core, extra-thick EPDM insulation, and locking stainless terminals for superior durability and spark consistency under high vibration.