AC Resistor Spark Plug MR43LTS

The AC Delco MR43LTS resistor spark plug is engineered for marine propulsion systems, offering consistent ignition reliability in jet boats, inboards, outboards, and personal watercraft. Built with a premium copper core that efficiently transfers heat, it maintains optimal operating temperatures across varying engine loads while resisting electrode wear. The ribbed suppressor seal provides enhanced durability and effectively minimizes spark flash-over and misfires that degrade performance. A protective nickel-chrome alloy sheath shields the center electrode from corrosion caused by saltwater and moisture exposure. This specialty marine plug combines superior suppression technology with robust construction to ensure the dependable starting and smooth running your marine engine requires.