BKR6EGP 55585517 iridium platinum spark plug Audi BMW Volkswagen GM

Audi, BMW, Volkswagen and GM engines, including EA888 and N20, use BKR6EGP iridium-platinum spark plugs (OEM 55585517). The iridium-platinum electrode provides a center electrode thinner and about three times more resistant to wear than nickel alloy; threads and insulator meet OEM tolerances. OEM numbers 55585517, BKR6EGP, GM55585517; fit post-2000 models of the listed brands. Uses a 6 kΩ resistance to suppress EMI, with a standard 26.5 mm reach; installation difficulty is medium; professional technician recommended to ensure precise torque.