Goulds Water Technology Pumps 2AM32 Self Priming, Air Cooled Gasoline Engine Driven Pump with Cast iron, open-impeller models for dewatering applications. The 2AM32P Petro-Guard Self-Priming Petroleum Product Pump is specifically designed for pumping petroleum products such as diesel and Jet fuel and gasoline when in a well ventilated area where lack of electric power makes it impossible to use pumps driven by explosion proof electric motors.