Provides access for filling fuel tank.
Keeps dirt out of fuel supply.
Vents fuel tank to outside air.
Provides safe clean storage for diesel fuel supply.
FUEL GAGE SENDER
Considered part of electrical system.
Float adjusts to fuel level and sets up resistance in sender which electric FUEL level gage reads and shows as
FUEL SHUTOFF VALVE
Located at bottom of fuel tank.
Allows fuel system maintenance, including water and sediment draining, without completely draining fuel tank.