Champion offers spark plugs for all marine applications, such as inboards — including diesel engines that require glow plugs — outboards, jet boats or personal watercraft (PWC). Champion’s marine plugs also have stainless steel threads that never rust, are easy to remove and are particularly well-suited for saltwater environments.

Champion marine spark plugs have an extruded copper core in the center electrode that maintains accurate control of heat range, optimizing the performance and longevity of the spark plug. They start easily and won’t leave marine equipment operators stranded.

The electrodes on Champion marine spark plugs use our Heat-Active™ alloy to reach operating temperatures quickly and maintain stable operating temperatures under varying engine loads.

Champion marine spark plugs also have a patented Mag Suppressor that provides maximum protection from radio frequency interference (RFI) in GPS/fish finders.