Denso Iridium SIP Spark Plug FXE20HR11 / 3439 Replace PLZKAR6A-11 DILKAR6A11DENSOs ground-breaking, Super Ignition (SIP) Spark Plug is the next generation Iridium/ Platinum technology thats making waves with vehicle manufacturers around the world, Featuring not one, but two ultra-fine, highly durable centre & ground electrodes, they produce exceptional spark & performance even in the demanding environment of lean-burn petrol engines. Vastly increased endurance. enhanced Ignitability enhanced Output Reduced Emissions Technologically Advanced Consolidated Range DIMENSIONS: Height (mm): 24.5 Width (mm): 24.5 Length (mm): 92 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.