AC Delco Spark Plug 8 Pack #MR43T

ACDelco Specialty Marine Spark Plugs are everyday replacement plugs designed for reliability and efficient performance in jet boats, inboards, outboards, and personal watercraft. They can maintain stable operating temperatures under varying loads. Their high-quality copper core and outstanding suppression characteristics deliver reliable performance.Copper core provides great heat transfer and helps maximize plug durability Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires Nickel-chrome alloy sheathing to help prevent corrosion on center electrode *Customer responsible to verify plug reach, plug gap, heat range and appropriate torque. Indmar , Mercruiser , Pcm marine manufactorer for boats pre 1996 5.7 ltr , 7.4 ltr Chevy Engine Make Malibu , Nautique , Supra