DENSO Cool Gear Radiator

A "Cool Gear" radiator is a brand of radiator from DENSO, an automotive parts manufacturer. These radiators are designed for the aftermarket and are intended to be affordable, high-quality, and compatible with a wide range of vehicles. Like all radiators, their primary function is to dissipate engine heat by circulating a coolant mix and releasing heat to the atmosphere through an air-cooled fin and tube structure. 
Function of a "Cool Gear" radiator

• Engine cooling: The core function is to cool the engine by releasing heat from the coolant.
• Heat exchange: Hot coolant from the engine flows through the radiator's tubes, where air passing over the fins removes the heat.
• Part of the cooling system: It works with other components like the water pump, thermostat, and radiator cap to maintain the engine's optimal temperature.