NGK spark plugs are designed to operate over a much wider heat range than ordinary plugs. Each NGK features high alumina ceramics for better heat transfer and electrical insulation. Patented triple gasket sealing process eliminates the possibility of combustion gas leakage. * They are resistant to carbon buildup and pre-ignition * Longer insulator nose prevents fouling and misfiring * Solid copper core and nickel-tipped electrode provide a longer plug life
- 225 hp 225 Opti Max6-cyl. 2-Stroke 2006 .031
- 200 hp 200 Opti Max6-cyl. 2-Stroke 2006-2003 .031
- 175 hp 175 OptiMax DFI6-cyl. 2-Stroke 2006-2003 .031
- 150 hp 150 OptiMax DFI6-cyl. 2-Stroke 2006-2003 .031
- 135 hp 135 OptiMax DFI6-cyl. 2-Stroke 2006-2003 .031
- 115 hp 115 OptiMax6-cyl. 2-Stroke 2004-2003 .031
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