Bowser definition

Originally a trade name of SF Bowser inc., the company of Sylvanus Bowser the US inventor of the first fuel pump.

The fuel metering/delivery pump found in a filling station.
A road vehicle (often a trailer) for the transport of liquid fuel, particularly aviation fuel at an airfield.
a mobile water tank deployed to distribute fresh water in emergency situations where the normal system of piped distribution has broken down or is insufficient.