Dennis Drengson’s 2016 Peterbilt 389

Dennis Drengson's 2016 Peterbilt 389 with a 12,600-gallon 2018 Westmor Proline trailer

Dennis Drengson owns this 2016 Peterbilt 389 that’s powered by a 550-hp Cummins ISX15 with an Eaton UltraShift Plus. Drengson hauls mostly anhydrous ammonia for Triple N Transport out of Underwood, North Dakota. The fleet also carries propane, liquid fertilizer and some dry fertilizer. The trailer in the photo above is a 12,600-gallon 2018 Westmor Proline.

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