NGK Spark Plug GR8DI-12 (90908) is a premium quality spark plug designed for HUSQVARNA and KTM vehicles. It features an iridium alloy on the middle electrode, offering superior resistance to spark erosion and doubling the service life compared to standard nickel spark plugs. This spark plug has a thread size of 19mm, a diameter of M14, and a spanner size of 14 Bi-Hex. It is a genuine UK stock item with a 60-day returns policy.