GENERAL MOTORS 03490184, 05505819, 3490184, 3490229, 3490258, 5505819, 90239569, 90297143, 93171875. OPEL 1214019, 1214134, 1214138, 1214700, 1214801, 1214805. VAUXHALL 91143773. Spark Plug 1 - Earthed Electrode, Nickel Middle Electrode.
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