Coil Wire - Red 18in HEI/Socket

The Coil Wire – Red 18in HEI/Socket is a spiral-core ignition cable engineered for high-performance engine ignition systems. This 18-inch coil wire delivers reliable spark transmission from the ignition coil to the distributor cap in HEI (High Energy Ignition) and socket-style distributor applications. The sleeved 11.5mm core construction provides electromagnetic shielding to minimize electrical noise and maintain consistent ignition timing across a wide range of engine speeds and operating conditions.

Built with a spiral-core conductor and protective sleeve, this ignition cable resists degradation from heat, oil, and ozone exposure—critical factors in maintaining voltage delivery in engine compartments. The red insulation provides color-coded identification for easy installation and diagnostics. The 18-inch length accommodates standard hood heights and firewall layouts on most classic and performance applications. Proper ignition cable routing and secure connections at both the coil tower and distributor cap socket ensure maximum spark energy transfer to the spark plugs.

This coil wire is designed for restorers, hot rodders, and engine builders working with carbureted and fuel-injected engines that use traditional HEI or socket-style ignition systems. Whether troubleshooting weak spark conditions, rebuilding an engine bay, or replacing worn ignition components, a quality coil wire maintains the voltage pathway essential to reliable cold starts and consistent performance. The sleeved construction distinguishes this from solid-core wires and provides superior noise suppression in high-output ignition systems.