12V working voltage. Directly connect to your generator, providing a stable fuel supply for your generator. It allows you to get rid of power anxiety outdoors Advanced polymers, brushes, and commutators Leading-edge inlet to ensure long life and durability in multiple fuel blends Suitable for various models of generators, with strong compatibility and easy maintenance. Whether in outdoor work or emergency backup scenarios, it can provide you with reliable power support Fuel pumps are tested before shipment to ensure plug-and-play functionality. Therefore, there may be a minor residue of fuel inside, which is normal. Please remove the dust cap before installation. Make sure the fuel pump connector fits your generator before purchasing. To avoid a negative experience with the additional actions of making connector adaptation changes Electric Fuel Pump E11009 Replacement for Onan 5500 RV Generator Genset Emerald Plus Motor Set 5000kg Generator Airtex E11009 149-2331-03 149-2331.