Denso Platinum Spark Plug P16PR11 / 3114 Replaces PGR5C-11 PGR5A-11 PGR5 A Many of todays cars use platinum, long life spark plugs. DENSO pioneered that technology, applying erosion-resistant platinum to the centre & ground electrodes to maximize plug longevity & durability.enhanced, more reliable start More complete combustion (lower emissions) enhanced ability to overcome tuning imperfections Superior throttle response & acceleration Race proven technology DIMENSIONS: Height (mm): 56 Width (mm): 24.5 Length (mm): 85 If 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.