NGK is a Japanese manufacturer of spark plugs and ignition components, supplying OEM plugs to a wide range of ATV and UTV manufacturers including Honda, Yamaha, Kawasaki, Suzuki, Can-Am and Polaris. The range covers standard copper core, iridium and platinum plugs to suit both carburetted and EFI engines across a wide range of displacements. Always confirm the correct plug specification for your machine by checking your owner's manual or existing plug heat range and thread specification before ordering.