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Our updated 2026 GEN4 Radiator was designed to improve airflow, cooling efficiency, durability, and overall reliability.
The GEN4 design significantly increases airflow to the underside of the radiator while introducing a triangulated mounting system that eliminates the traditional radiator brackets most prone to cracking and failure. The result is a stronger, more secure mounting design built to withstand the demands of racing.
A cross-flow radiator design helps maintain consistent pressure on the return side of the engine water pump. Because coolant returns from the lowest point of the radiator, the system is less susceptible to introducing air pockets caused by a loss of coolant or inconsistent flow. As with any cooling system, all trapped air should be properly removed before racing. See our air-removal tips below for the recommended procedure.
Another major improvement is the additional open space above the radiator and beneath the hood. When paired with the GEN4 body design, this provides a cleaner path for hot air to escape instead of becoming trapped around the radiator.
The GEN4 radiator also features integrated fan mounting brackets and accommodates a larger cooling fan capable of moving nearly 1,300 CFM—almost double the airflow of the 12-inch fan previously used with our GEN3 radiator.
Our updated 2026 GEN4 Radiator was designed to improve airflow, cooling efficiency, durability, and overall reliability.
The GEN4 design significantly increases airflow to the underside of the radiator while introducing a triangulated mounting system that eliminates the traditional radiator brackets most prone to cracking and failure. The result is a stronger, more secure mounting design built to withstand the demands of racing.
A cross-flow radiator design helps maintain consistent pressure on the return side of the engine water pump. Because coolant returns from the lowest point of the radiator, the system is less susceptible to introducing air pockets caused by a loss of coolant or inconsistent flow. As with any cooling system, all trapped air should be properly removed before racing. See our air-removal tips below for the recommended procedure.
Another major improvement is the additional open space above the radiator and beneath the hood. When paired with the GEN4 body design, this provides a cleaner path for hot air to escape instead of becoming trapped around the radiator.
The GEN4 radiator also features integrated fan mounting brackets and accommodates a larger cooling fan capable of moving nearly 1,300 CFM—almost double the airflow of the 12-inch fan previously used with our GEN3 radiator.