Model 378 / 367 Conventional Peterbilts, CAT & Cummings Engines (governed at 65 mph), 18 speed transmissions, 63" sleepers.  Volvo 630 trucks with D16 engine.  Most trucks are equipped with APU's.  Inverters allowed.  We have a fleet of 550 specialized trailers across the country, including flatbeds, step-decks, lowboys, I-Beams and Super-Trailers.  Keen boasts a fleet of 50 fifty-five and greater trailers with many different possible combinations, capable of transporting a wide variety of loads up to 160,000 lbs.