Compatibility: 2010-2016 Lexus RX350 2010-2014 Lexus RX450h 2011-2017 Toyota Sienna For more details, pls check compatibility Chart. What is a Radiator? A radiator is a component of the engine's cooling system that removes heat from the engine. The process begins when the thermostat in the front of the engine detects overheating. Then coolant and water get released from the radiator and sent through the engine to absorb this heat. Features: .
