Product Description: Universal 12V Low-Pressure Electric Fuel Pump for Diesel Applications This professional-grade inline electric fuel pump is engineered for reliable diesel fuel transfer and supply. Operating at a low pressure of 4-7 PSI with a free flow rate of 35 gallons per hour, it is the ideal solution for priming fuel systems, transferring fuel, or serving as a primary pump for compatible diesel engines and equipment. This pump is for diesel fuel only. Product Specifications: Fuel Type: Diesel Only Voltage: 12V Negative Ground Systems Only Pressure: 4-7 PSI Free Flow Rate: 35 GPH (Gallons Per Hour) .