The Cummins 6BT is a 5.9 L (5,883 cc, 359 cu·in) six-cylinder four-stroke water-cooled turbocharged internal combustion diesel engine, manufactured by Cummins from 1984 to 1998. A 102.0 mm (4.02 in) cylinder bore and 120.0 mm (4.72 in) piston stroke give the