Yamaha Housing, Water Pump (Jet Drive) - 67F-44311-10-00. Essential Jet Drive Water Pump Housing for Yamaha Outboards. The Yamaha - Housing, water pump (jet drive) - 67F-44311-10-00 is a genuine OEM component designed to enclose and protect the water pump system in jet drive Yamaha outboards. This housing ensures that the impeller and water flow are properly sealed and guided, supporting optimal engine cooling and performance in high-demand environments.. Crafted to Yamaha's strict quality stand