Boyesen WPK-38B Water Pump Cover & Impeller Kit for Yamaha YZ and YFZ Models

Upgrade your Yamaha motorcycle's water pump system with the Boyesen WPK-38B Water Pump Cover & Impeller Kit. Designed specifically for models including the Yamaha YZ426F, WR426F, and YFZ450 from 2000 to 2008, this kit ensures optimal cooling performance and reliable operation. The kit features a durable 2-piece cast aluminum construction that provides excellent strength and resistance to corrosion, enhancing the longevity of your water pump assembly. The integrated oil filter access enables quick and hassle-free filter changes, reducing maintenance time and effort.
Designed with increased coolant flow at all RPM ranges, this kit helps maintain consistent engine temperatures during demanding riding conditions. The patented Nautilus style impeller is engineered for hydrodynamic efficiency, promoting smoother water circulation and improved cooling performance. These features work together to prevent overheating, extend engine life, and optimize overall engine performance. Installation is straightforward, making this kit a practical upgrade for enthusiasts seeking to improve their motorcycle’s cooling system without extensive modifications. Whether you're riding on the trail or the track, the Boyesen WPK-38B kit provides the reliability and performance you need to keep your Yamaha running at its best. Trust Boyesen's proven engineering for superior cooling solutions that meet the demands of high-performance riding.

Features:

• 2-piece cast aluminum construction for durability and corrosion resistance

• Oil filter access for hassle-free filter changes

• Increased coolant flow across all RPM ranges for optimal engine cooling

• Patented Nautilus style impeller for hydrodynamic efficiency

Fits,
Yamaha WR426F 2001
Yamaha WR426F 2002
Yamaha WR450F 2003
Yamaha WR450F 2004
Yamaha WR450F 2005
Yamaha WR450F 2006
Yamaha WR450F 2007
Yamaha WR450F 2008
Yamaha WR450F 2009
Yamaha WR450F 2010
Yamaha WR450F 2011
Yamaha WR450F 2012
Yamaha WR450F 2013
Yamaha WR450F 2014
Yamaha WR450F 2015
Yamaha YFZ450 2004
Yamaha YFZ450 2005
Yamaha YFZ450 2006
Yamaha YFZ450 2007
Yamaha YFZ450 2008
Yamaha YFZ450 2009
Yamaha YFZ450 2012
Yamaha YFZ450 2013
Yamaha YFZ450 Bill Balance Edition 2006
Yamaha YFZ450 Bill Balance Edition 2007
Yamaha YFZ450 SE 2007
Yamaha YFZ450 SE 2008
Yamaha YZ426F 2000
Yamaha YZ426F 2001
Yamaha YZ426F 2002
Yamaha YZ450F 2003
Yamaha YZ450F 2004
Yamaha YZ450F 2005
Yamaha YZ450F 2006
Yamaha YZ450F 2007
Yamaha YZ450F 2008
Yamaha YZ450F 2009