Your car engine generates a huge amount of heat. A lot of this heat is dissipated through the exhaust system, but the engine still retains a large portion. If your engine overheats, it can easily be destroyed.

On the other hand, the engine needs a certain amount of heat to run efficiently. A cold engine is not as efficient as a warm one, wears its parts out more quickly and releases more pollutants.

The cooling system is the means of regulating the temperature without overheating. The Lexus ES300 Radiator is an enclosed metal box with a large tube that collects hot coolant from the receiving tank and, after passing the coolant through its tubes, sends it to the dispensing tank where the water pump will pick it up and send it back through the cooling system. In order for your Lexus ES300 Radiator to do its job efficiently, it requires a radiator cap. The radiator cap has two jobs. The first job is to serve as a lid for the radiator. The second job is to keep the coolant in the radiator at a certain factory specified pressure. The pressure keeps the liquid from boiling away and overheating the engine. The ideal coolant to use in your Lexus ES300 Radiator is a 50/50 mix of water and antifreeze. The antifreeze, whose main component is ethylene, will help keep your radiator from overheating and boiling out of the vehicle in warm weather and from freezing during extremely cold weather. Any reasonably competent backyard mechanic, using basic hand tools, can replace a radiator with relative ease.Our radiators are manufactured to meet or exceed strict factory specifications using the finest quality components available and can be ordered securely from our online store.