Description
Engine cooling efficiency directly impacts performance, reliability, and longevity—especially under high-RPM conditions. The BOYESEN WPK-45B water pump cover and impeller combo increases coolant flow across the entire RPM range, allowing your engine to maintain optimal operating temperatures under sustained load. This investment-cast aluminum assembly is engineered to reduce thermal stress on critical engine components, extending service life and preserving power output.
Technical Specifications:
- Material: Investment-cast aluminum
- Type: Water pump cover and impeller
- Design: Patented nautilus-style impeller
- Flow profile: High-flow hydrodynamic
- RPM range: All RPM optimization
- Finish: Black powder coat
- Installation: Bolt-on compatibility
- MPN: WPK-45B
- Benefit: Increased coolant circulation
- Result: Consistent engine temperature






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