Abstract: An apparatus for feeding a fuel, in particular in the form of LPG, to an internal combustion engine includes a tank (1) for containing the fuel and elements (11) for delivering the fuel from the tank to the engine. Elements (26) are provided for allowing the fuel to flow towards the delivery elements when the delivery elements (11) are engaged in the working position and for shutting off the fuel flow towards the delivery element (11) when the delivery elements (11) are disengaged and out of the working position.