Air Cooled Type Water Tanker has dual circuit hydraulic operated drum brake with self adjusting type brake device and has leading link type with coil spring and shock absorber. The Water Tanker is designed with two sets of longitudinal leaf springs, assisted by two telescopic shock absorbers. The Water Tanker has rectangular ladder type chassis and constant mesh type transmission. The Air Cooled Type Water Tanker has electrical self start; rope start and air cooled cooling system.