NGK BP6HS 4511 Spark Plug, compatible with iridium, platinum, nickel alloy, improves ignition efficiency

NGK BP6HS 4511 spark plug accommodates iridium, platinum, and nickel alloy electrodes; suitable for most brands after 2000; OEM BP6HS 4511. Installed in cylinder head spark plug thread; ignites mixture to improve ignition efficiency. Installation difficulty: medium; about 30 minutes to 1 hour. If starting is difficult or fuel consumption increases, electrodes may be worn and replacement is needed to restore engine performance.