NGK 4901 Spark Plug

NGK is a world leader in original equipment and aftermarket spark plugs and oxygen sensors. When it comes to spark plugs. NGK is the World Leader.Spark Plug. NGK Racing Plug.. NGK Racing Spark Plug.. Spark Plug.. NGK Racing Spark Plug. 1132: 5K Ohm. 547: Copper Core. 548: Iridium. 549: 0.028. 550: 1. 551: 5/8. 552: ISO. 553: 8. 554: 5K Ohm. 555: Gasket. 556: 26.5mm. 557: 14. 1155: Taper Cut / Trapezoid. 1156: Standard. 1159: Nickel Core. .