Description: This Universal 12 volt Electronic Fuel Pump is for diesel engines only. This pump is for negative ground applications. Pumps 5 to 9 PSI of diesel. Micro Electric Diesel Fuel Pumps are designed to provide efficient fuel transfer. They include a 100 micron in- line filter and feature a universal design facilitating easy installation. Specification: Current:1-2A Free Flow Rate:35GPH Pressure:5-9psi Voltage:12V Inlet Size:5/16 inch Inlet Attachment:Female Threads Outlet Size:5/16 inch Outlet Attachment:Female Threads .