Toyota Lexus Hybrid Original Water Pump | Electric Cooling Pump Oem

DescriptionToyota Lexus Hybrid Original Water Pump | Electric Cooling Pump OemThe Original Equipment Manufacturer (OEM) Toyota/Lexus Electric Hybrid Water Pump (specifically the Inverter Cooling Pump) is a critical component designed to circulate coolant through the hybrid system’s inverter, preventing overheating and ensuring the efficiency of the hybrid engine. These pumps are often manufactured by Aisin, a primary supplier for Toyota/Lexus.Key Characteristics & FeaturesBrushless Motor Technology: Unlike mechanical pumps, these are driven by electric motors (often brushless) that operate independently of the internal combustion engine speed.Precision Cooling: The ECU controls the pump via Pulse Width Modulation (PWM), allowing it to vary speed based on real-time temperature requirements, which improves fuel efficiency and heat management.High-Temperature Resistance: Engineered to withstand extreme operating conditions, commonly functioning within a range of 250°F to 350°F.Durable Construction: Made from aluminum, brass, or reinforced plastic designed to resist rust, corrosion, and coolant scaling.FunctionalityInverter Protection: The pump circulates a dedicated, separate coolant loop through the hybrid inverter. Because the inverter converts high-voltage DC power to AC, it generates significant heat that must be actively managed.Post-Shutdown Operation: Since it is electric, the pump can continue to run after the main engine has shut down, providing cooling during critical soak times. Typical OEM Part Numbers & Applications161A0-29015 / 161A0-39015: Common for Toyota Prius (ZVW30/35), Prius C/V, and Lexus CT200h.G9040-47090 / G9040-48060: Used for Lexus RX450h, NX300h, and high-voltage inverter circuits.16100-39575: Fits RAV4 Hybrid (2015–2018) and Lexus 300h series.Signs of Failure“Check Hybrid System” Warning Light: Often accompanied by diagnostic code P0A93, indicating an inverter coolant circuit failure.Overheating/Loss of Power: If the inverter overheats, the car may enter limp mode or shut down entirely.Noisy Pump: A grinding or whining noise from the small electric pumpView the item on this link https://davitechauto.co.ke/product/toyota-lexus-hybrid-original-water-pump-electric-cooling-pump-oem/