Abstract: A cooling system that has a primary radiator with a first stepped tank and a second stepped tank. These stepped tanks have openings which allow the primary radiator to connect to one or more supplemental radiators so that coolant may flow through these radiators simultaneously thus increasing a vehicle's cooling capacity. Flow of coolant between the primary radiator and the supplemental radiators can be controlled by either automatic or manual control valves and wherein the primary radiator and supplemental radiator can be either down-flow radiators or cross-flow radiators.

Abstract: The present cooling system comprises a primary radiator having a first stepped tank and a second stepped tank. These stepped tanks can comprise openings configured to allow the primary radiator to connect to one or more supplemental radiators allowing coolant to flow through these radiators simultaneously thus increasing a vehicle's cooling capacity. Flow of coolant between the primary radiator and the supplemental radiators can be controlled by either automatic or manual control valves. The present cooling system can be configured to work with either down-flow radiators or cross-flow radiators.