BOYESEN Yamaha WPK-31B Impeller and Water Pump Cover Kit for Outboard Engines

Impeller/Waterpump Cover - Black - Yamaha

Upgrade your Yamaha outboard engine with the BOYESEN WPK-31B Impeller and Water Pump Cover Kit, designed specifically for models including F150, F200, and F225. This high-performance aluminum investment-cast water pump cover and impeller combo enhances your cooling system's efficiency, ensuring your engine runs cooler and more reliably under demanding conditions. The kit features a patented nautilus-style impeller that provides superior hydrodynamic efficiency, maximizing coolant flow across all RPM ranges for improved engine longevity and performance. Built for durability and optimal flow, this kit helps extend engine life by maintaining consistent operating temperatures and reducing thermal stress.

Constructed from lightweight aluminum, the WPK-31B is engineered to withstand harsh marine environments while providing efficient heat dissipation. The high-flow design ensures increased coolant circulation, which is critical in preventing overheating during extended use or high-performance applications. This kit is a direct replacement for OEM parts, offering a seamless fit and easy installation for Yamaha outboard models. Whether you're replacing worn components or upgrading for better performance, the BOYESEN WPK-31B kit delivers reliable cooling system enhancement for a variety of Yamaha outboard engines, including models from 2000 through 2023, with shaft lengths ranging from 20 to 25 inches.

Optimize your engine’s cooling system with this high-quality water pump upgrade, ensuring smooth operation and extended engine life for your Yamaha outboard. Proper fitment is available for Yamaha models F150, F200, F225, and similar engines, making it an essential component for marine enthusiasts seeking durability and performance efficiency.

Features:

• Aluminum investment-cast construction for durability and corrosion resistance

• Patented nautilus-style impeller for superior hydrodynamic efficiency

• High-flow design increases coolant circulation at all RPM ranges

• Engineered to keep Yamaha outboard engines running cooler and more stable

• Designed for models including Yamaha F150, F200, F225, and compatible with engines from 2000-2023 with 20-25 inch shafts