NGK ILFR6B 6481 Spark Plug Iridium

The NGK ILFR6B 6481 Iridium spark plug is engineered for dependable ignition and long service life. With a fine iridium tip and a 14mm thread diameter, this plug delivers consistent sparking, faster ignition, and improved fuel efficiency across modern gasoline engines. Designed to resist wear and deposits, it maintains stable performance under high temperatures and heavy loads. Ideal for everyday driving and performance applications, the ILFR6B balances durability with precise heat range and gap stability. Each plug helps reduce misfires and rough idle, providing smoother acceleration and quieter operation. Upgrade your ignition system with this trusted NGK iridium option for reliable starts and enduring reliability.