Pump for supplying or transferring water and diesel oil by means of a portable 12V electric motor, suitable for customers who perform field operations. Supply of tanks and reservoirs for vehicles, engines, generators, agricultural implements and etc …, ideal for the automotive, agricultural and construction segments. Lightweight, compact and portable offering greater operator comfort. There is no need to use compressed air, it is powered by vehicle batteries in general and has an on / off switch for added convenience.