Denso Platinum Spark Plug P20PR11 / 3115 Replaces PGR6A PGR6A-11 PGR6BMany of todays cars use platinum, long life spark plugs. DENSO pioneered that technology, applying erosion-resistant platinum to the centre and ground electrodes to maximize plug longevity and durability.Improved, more reliable start More complete combustion (lower emissions) Improved ability to overcome tuning imperfections Superior throttle response and acceleration Race proven technologyDIMENSIONS: Height (mm): 56 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.