Denso TT Nickel Twin Tip Spark Plug W16TT / 4601 Replaces 267700-6300 DENSOs world-first patented Nickel TT Spark Plugs feature a nickel centre and twin 1.5mm diameter protruding ground electrode achieving superb ignition efficiency without expensive precious metals.Fuel efficiency Reduced Emissions Highly Consolidated Range Born for cold StartsDIMENSIONS: Height (mm): 43 Width (mm): 24.5 Length (mm): 85If you are unsure as to whether this is the correct part for your vehicle, please don\'t hesitate to contact us. Alternatively please use the cross reference table above.