Mercury Marine Water Pump Impeller

This impeller is designed for Mercury OptiMax 75–115 hp 2‑stroke outboards, Mercury 30–350 hp 4‑stroke outboards, and MerCruiser Alpha One Gen II and Vazer sterndrives, supplying the cooling water your engine depends on. Built for durability and consistent performance, it maintains flexibility across wide temperature ranges to ensure reliable cooling throughout the boating season.

Features

• Fits Mercury OptiMax 75–115 hp 2‑stroke outboards
• Fits Mercury 30–350 hp 4‑stroke outboards
• Fits MerCruiser Alpha One Gen II and Vazer sterndrives
• Provides essential cooling‑water flow to protect the engine
• Impeller elastomers maintain flexibility across broad temperature ranges
• Center insert resists tearing for dependable performance
• Designed for durability and high flow rates to safeguard engine cooling systems

Product availability varies between locations, and some products are only available online. Please contact your nearest Martin Motor Sports here for availability.