The fuel pump supplies fuel from the tank to the engine.
It is usually submerged in the fuel to keep it cool and lubricated.
The fuel pump is driven by an electric motor, which is usually mounted on the top of the fuel tank.
The motor drives a pump that sucks fuel from the tank and pumps it to the engine.
On some vehicles, the fuel pump may be mounted outside of the fuel tank, but this is less common.
