Boyesen SuperCooler + Impeller - Blue Water pump cover kitRef : BOY00167A / 1147116003

BOYESEN WPK-38DL - Water Pump Cover + SuperCooler Impeller (Blue)

Specifically designed for off-road riders, this BOYESEN SuperCooler kit includes a water pump cover and a hydrodynamic impeller intended to improve the circulation of coolant within the engine case. Designed for motocross and enduro applications, it promotes a higher flow rate and better thermal uniformity of the engine, helping to limit temperature variations under intensive conditions.

• Kit contents:
• Pump cover
• Gasket
• Impeller (propeller)
• Hardware kit

The anodized blue finish adds a sleek visual touch to the engine case and withstands usage constraints. Easy to install for both amateur mechanics and workshops, this kit integrates with the existing pump's ergonomics while optimizing coolant circulation around the radiator and engine block.

Manufacturer reference: WPK-38DL
Brand: BOYESEN — category: Water pump cover and impeller

Fits particularly recent motocross models, such as YAMAHA YZ 450 F (2026), YAMAHA WR 450 F (2026), and YAMAHA YZ 450 FX (2024). Check compatibility with your motorcycle before installation.