Spark Plug: 1 - Earthed Electrode. Larger gap than a copper electrode for more efficient combustion. Opel Astra H Sport Hatch H [2005-2010] Hatchback 2.0 Turbo (1998ccm 240HP 177KW Petrol). Any information in the compatibility table is for reference only and there may be unspecified choice options.
eBay