409 Spiro-Wound 10.4mm Coil Wire Repair Kit Blk

The Taylor/Vertex 409 Spiro-Wound 10.4mm Coil Wire Repair Kit in Black is a cut-to-fit spark plug wire solution designed for high-performance engine ignition systems. This coil wire repair kit features a spiral-core construction rated for 10.4mm diameter applications, making it suitable for HEI and socket-style distributor configurations commonly found in classic muscle cars, hot rods, and performance-tuned vehicles requiring reliable secondary ignition circuits.

The kit arrives as a 36-inch wire length that can be trimmed to your specific engine bay routing requirements. The 90-degree boot design accommodates tight corner angles typical in compact engine compartments while maintaining solid cap-to-wire contact. Spiral-core construction provides electromagnetic shielding to suppress ignition noise and reduce interference with electronic fuel injection and ignition modules—critical in high-RPM applications where signal clarity affects engine performance. The black outer jacket offers UV and heat resistance for extended underhood service life.

This repair kit addresses ignition system failures in vehicles running carbureted or early fuel-injected engines with distributor-based ignition. Builders and restoration enthusiasts use cut-to-fit coil wire kits when stock ignition harnesses fail, routing changes are required, or custom engine combinations demand non-standard wire lengths. The 409 Pro Race designation signals tuning-grade construction appropriate for street performance, bracket racing, and weekend track use where dependable spark delivery matters.