Improve cooling performance with the Boyesen Supercooler Water Pump Cover & Impeller Kit. Its patented Nautilus-style cast aluminum impeller increases coolant flow across all RPM ranges to help keep temperatures stable under heavy load.
Keep engine temperatures under control with the Boyesen Supercooler Water Pump Cover & Impeller Kit. Designed to improve cooling efficiency, this kit uses a patented Nautilus-style cast aluminum impeller and a hydrodynamically shaped cover to move more coolant through the system across the entire RPM range. The result is more consistent operating temperatures—ideal for demanding motocross, enduro, and hard trail riding where heat buildup can reduce performance and reliability.
By increasing flow while reducing cavitation and hydraulic friction, the Supercooler setup helps your cooling system work more effectively, especially when the bike is pushed hard or ridden in slow, technical conditions.