Passenger Side 55 Gallon 18 X 18.5 X 38 Inch Aluminum Rectangular Fuel Tank- Rear Fill By BESTfit Fits Freightliner M2 High Quality Fuel TankMade Of 11 Gauge AluminumDimensions: 38″ Length x 18″ Width x 18.5″ HeightPassenger Side55 GallonRear FillMill FinishUse Cap Number 03-060311 Non-Locking Or 03-060312 LockingWelded Seams To Prevent LeakageCNC Laser Technology For Precision CutsDOT CompliantSold Individually