Description
Engine cooling efficiency directly impacts performance, reliability, and longevity—especially under sustained high-RPM operation. The BOYESEN Impeller/Waterpump Cover WPK37M uses a patented nautilus-style impeller design to increase coolant flow across all RPM ranges, keeping your engine running at a stable, optimal temperature. This means less thermal stress on critical components and extended engine life without sacrificing power or adding parasitic drag.
- Aluminum investment-cast construction
- High-flow impeller design
- Patented nautilus-style geometry
- Increased flow all RPMs
- Improved thermal stability
- Bolt-on installation
- Extended engine life
- Hydrodynamic efficiency optimized
- MPN: WPK37M









