The Generac 0E4162 OEM Radiator cap 20 PSI is a specific replacement part designed for Generac generators. It is a radiator cap with a pressure rating of 20 PSI, ensuring efficient and reliable operation of the generator's cooling system. This cap is compatible with the specified Generac model and is an original equipment manufacturer (OEM) part, providing a perfect fit and performance. Ideal for maintaining the proper functioning of standby generators, this radiator cap helps regulate the pressure within the cooling system to prevent overheating and ensure optimal performance during operation.