Selling Heavy Equipment Radiators from Mustika Mandiri Diesel in Jakarta. Radiator is a heat exchanger that is used to transfer heat energy from one medium to another medium whose purpose is to cool or heat. Radiators that we commonly know are generally used in motor vehicles (two-wheeled or four-wheeled), but not infrequently the radiator is also used on machines that require extra cooling. As in the production machinery and construction heavy equipment and other machinery that work in heavy or old working conditions. The radiator consists of an upper water tank, a lower water tank and a radiator core in the middle. We sell quality radiators at competitive prices.