Dependable performance features a copper core electrode that provides increased conductivity and heat control, providing good overall wear characteristics.; Copper core center electrode allows for accurate control of heat range; Copper core optimizes the performance and longevity of the spark plug; Built to ISO and SAE standards for proven performance; TinTac(R) and ULTRASEALTM shell eliminates the need for use of anti-seize compound by providing the best corrosion protection UPC: 037551000531 Center Electrode Core Material: Nickel Copper Alloy Internet Product Code (IPC): 31844D9709A Item has MSDS (SDS)?: N MFG Brand Name: Champion Spark Plugs MFG Model # (Series): 853 MFG Name: Federal-Mogul Motorparts Spark Plug Type: 2 & 4 Cycle Supplier Company Name: Federal-Mogul Motorparts