For Mercury OptiMax 75-115hp 2-stroke outboards and Mercury 30-350hp 4-stroke outboards, and MerCruiser Alpha One Gen II and Vazer sterndrives. See your owner’s manual for replacement schedule.
Provides cooling water to your outboard engine
Impeller elastomers provide improved flexibility across broad temperature ranges throughout the boating season
Center insert resists tearing to ensure performance
Center insert resists tearing to ensure performance
Designed for durability to provide higher flow rates and cooling flow to protect your engine