This is a brand new OEM DEF doser urea pump assembly for Paccar and Cummins. The manufacturer part number is 5506956 and 4388105, and it has interchange and OE/OEM part numbers of 4388105, 2115624, 2208766, 5506956, 5506956RX, A052Y, A06X234, 2208766PE, 5506956CUM, and 2115624PE. It comes with a manufacturer warranty of 6 months and is made in the United States. This product is designed for diesel exhaust fluid system parts and exhaust and emission systems.