Original equipment Toyota inverter water pumps frequently fail due to stalled internal impeller motors and excessive wear. This Dorman OE FIX replacement features a redesigned motor with a more stable position for greater reliability. Product Features:Upgraded replacement - this inverter water pump has a redesigned motor to increase reliabilityDirect fit - designed to replace the original equipment part in fit and functionApplication specific - made for certain Toyota Prius models from 2004 to 2009Quality engineering - designed in the United States and backed by decades of automotive aftermarket experience