The Moroso insulated Ultra 40 spark plug wire sleeve is an 8.65mm blue 25ft roll offering a slightly larger bore for thicker wires or boots. The Ultra 40 sizing provides additional clearance while still allowing custom cuts to route and protect ignition wires, useful where standard 8mm sleeves are too tight. The roll format supports multiple wires and neat harness organization.
Moroso Insulated Spark Plug Wire Sleeve - Ultra 40 - 8.65mm - Blue - 25ft Roll