Cat® Radiator Coolant Tank is a reservoir that holds coolant. Tanks are designed and manufactured to meet the operational needs for Cat® machines. Cat® Tank is a storage reservoir, where a given quantity of coolant is stored and drawn from to cool an engine. Cat® Coolant Tanks are systematically engineered into the design of every Cat® machine to ensure optimum safety and coolant storage capacities necessary to maximize the amount of hours before a refill is needed.Application:Cat® Coolant Tanks are designed for collecting the radiator coolant. Consult your owner's manual or contact your local Cat® Dealer for more information.