Pump unit for a vehicle tanker

The present invention relates to a pump unit for a tanker device, such as a vehicle tanker or a stationary storage tank. The pump unit according to the invention comprises a frame (11), a pump device (13) arranged on the frame and comprising a pump for connecting to a tank (5) of the tanker device for the purpose of pumping tank content into and/or out of the tank, and an autonomous drive configured to drive the pump.