10427930 Spark plug NGK 91970 M12 x 1,25 14 mm VAUXHALL: Astra Mk7 Kombi, Mk7, Corsa Mk4, OPEL: K Hatchback, J GTC

Optimal ignition performance: The laser-welded iridium centre electrode has a diameter of only 0.6 mm. This keeps the ignition voltage requirement low and ensures a powerful ignition spark. Long life: Thanks to the precious metal, the Iridium IX spark plug lasts up to twice as long as a standard nickel spark plug and, due to this durability, saves money and installation and removal time. Full performance over the entire service life: With standard spark plugs, the distance between the electrodes increases over time due to burn-off. The quality of the ignition is impaired and misfiring occurs. With Iridium spark plugs, the electrode gap remains almost constant over the entire service life. Notes: please read the general installation instructions before installing! Delivery includes: 1x NGK spark plug ILNAR8B7G Iridium IX

The NGK ILNAR8B7G is part of the NGK Laser Iridium range.NGK Laser Iridium is original-equipment specification: the plug type fitted on the production line by many manufacturers. It pairs a laser-welded iridium centre electrode with a platinum pad on the ground electrode so both wearing surfaces are precious metal, which is what allows the very long service intervals modern engines are scheduled for. Consistent ignition over the life of the plug keeps fuel consumption and emissions where the maker intended. Use it as the like-for-like replacement where the vehicle handbook specifies this part number.