The first generation was delivered in 1989 to the Air Force by the Oshkosh Truck Corporation and is commonly referred to as the Oshkosh R-11.

The Air Force purchased 1,250 Oshkosh R-11s between 1987 and 1991.

The contract for the second generation model was awarded to the Kovatch Corporation, and the pumping and dispensing systems are mounted on a Volvo chassis.

The contract for this model was also awarded to the Kovatch Corporation, and the pumping and dispensing systems are mounted on an International chassis.

There is a new specification that has been manufactured by ATAP, Inc. R-11 fuel tanks hold a maximum capacity of 6,000 US gallons (23,000 L) and are able to issue fuel at a rate of 600 US gallons (2,300 L) per minute.