Denso X24ES-U X24ESU 4099 Spark Plug Standard

The Denso X24ES-U is part of the Denso Standard range.A Denso standard nickel-alloy spark plug with a copper-cored centre electrode and Denso's U-groove ground electrode, which gives the spark room to grow into a larger flame kernel. The dependable everyday choice where a conventional Denso plug is specified, on cars, motorcycles, outboards and garden machinery. Easy to inspect and re-gap.Heat (NGK scale) is our conversion of the Denso heat number onto the NGK scale, so plugs from different makers can be compared on one hot-to-cold ladder. Makers' cross-references can be ha