Genuine OEM Toyota Water Inlet Thermostat, part number 1603125011. This component is crucial for regulating the flow of coolant within the engine, thereby maintaining optimal operating temperature and preventing overheating. It is a key part of the engine cooling system. The part weighs 0.418 kg and has dimensions of 0.1825m x 0.143m x 0.114m. Genuine OEM parts ensure precise calibration and reliable performance for your engine's cooling system.