Description
Stock water pumps on the YZ250F can’t keep pace with sustained high-RPM racing demands, leading to thermal creep and power loss when you need it most. The BOYESEN WPI-37 Impeller Pump solves this with optimized impeller geometry that increases coolant flow while reducing cavitation—keeping your engine in the sweet spot under intense conditions. You’ll maintain stable operating temperatures lap after lap, preserving horsepower and engine durability that separates race winners from the field.
- OEM fitment: YZ250F
- Impeller design: Cavitation-optimized
- Flow enhancement: Increased efficiency
- Hydraulic friction: Reduced
- Horsepower loss: Minimized
- Installation: Bolt-on replacement
- Application: Competitive racing
- Engine lifespan: Extended reliability
