Denso Iridium Racing Spark Plugs offer the ultimate in strength, performance and value. IXU27. This is a 'colder' plug than a IXU24 for lean fuel and high heat conditions. I is the equivelant of an NGK; "9".

Ultra fine 0.4mm Iridium alloy centre electrode offers the ultimate performance whilst the solid platinum, laser welded ground electrode offers extreme strength and resistance to vibration damage for high revving engines.

Supplied in individual protective plastic case. Please note that the last 2 digits of the part number indicate the heat range where 24 is the warmest and 34 is the coldest Spark plug info

GAP SIZE 0.6mm HEX SIZE 16mm RESISTOR Yes TERMINAL TYPE Removable THREAD DIAMETER 12mm THREAD REACH 19mm PART TYPE Racing Spark Plug