Part Note: 19mm Thread Reach Plugs, Ignition System Type: Twin Spark, Part Note: 3x Pfr6g-11 (5555) Also Required, Supplier Code: 2756, Part Note: Twin Spark Requires 8x Plugs, DESCRIPTION: Ngk Spark Plug, Gap Mm: Preset, No of Plugs: 3, No of Plugs: 4, No of Plugs: 6, No of Plugs: 8