12129061868 Spark plug BOSCH 0 241 145 504 M 12 x 1,25 17,5 BMW: 3 Saloon, Convertible

Heavy-duty nickel center electrode ensures longer life than standard copper plugs Copper core provides better heat transfer for resistance to pre-ignition and fouling Metal glass fused resistor maximizes interference suppression Ribbed insulator design prevents misfire due to current leakage Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize