Belief 2.2kW/4kW Diesel Air Heater Glow Plug

The Eberspacher Airtronic D2, D4, D4s glow plug fits all Airtronic models.  Will also fit some Chinese copies of the Eberspacher, often listed as 5kw systems on Ebay. This is a good quality Kyocera (China) brand glow plug which has proven to give reliable service.