The 2004-2009 Toyota Prius Coolant Heat Storage Water Pump Assy. OEM 16290-21011 is a genuine Toyota engine water pump designed for specific models of the Toyota Prius. It features a bolt-on mounting style and electric drive type, ensuring a precise fit and reliable performance. This OEM part is not a vintage or universal fitment item, making it a suitable choice for maintaining the original components of the vehicle. Trust in the Toyota brand for quality and compatibility with your Toyota Prius.