CUMMINS GENERATOR RADIATOR DELHI /NCR The radiator in a Cummins diesel generator is a crucial component of the cooling system, responsible for dissipating the heat generated by the engine to prevent overheating and ensure efficient operation. Material Types: 1. Aluminum Radiators: Lightweight, strong, and corrosion-resistant, often used in mobile generators. 2. Composite Radiators: Offer excellent corrosion resistance and reduced thermal fatigue.