The Berkshire does not. It is in the back and to fill at the pump you must move the MH and enter the pump from the wrong end. Most truckers already think we are dumb ***** anyway now enter the pump from the wrong direction. To fill the tank from a 2.5 gal.container you must pour the DEF into a gallon milk container and then pour it into the tank. Thankfully not a task that needs doing often. It could have been thought out better swapping with the LP would be my choice.
Phil and Dianna
2011 Berkshire 390 RB