NGK Jaguar XJ12 1979-1973 Spark Plug Wire Set

The stainless steel winding over a premium ferrite magnetic core in these NGK wire sets is key to their ultra-low resistance. This design helps deliver a more powerful spark to your Jaguar XJ12's cylinders, which can make a noticeable difference in how smoothly the engine runs. They're built to handle high voltage currents, thanks to a high-temperature silicone outer jacket and inner EPDM/silicone insulation, ensuring excellent dielectric strength even under demanding conditions.

NGK specifies OE-quality spark plug and distributor boots to ensure they fit right and perform reliably on your specific vehicle. The spark plug boots are securely attached to the NGK cable using a silicone sealer, creating a watertight seal to keep moisture out. For a strong connection, the stainless steel terminals use multiple serrated crimps that bite into the cable jacket and insulation, providing excellent terminal retention strength. You'll also find a locking C-shaped spring clip with corrosion-resistant plating, which ensures a secure and positive connection to the spark plug terminal.