Cummins HM8.3:
Displacement: 8.3 liters (506 cubic inches)
Configuration: In-line 6-cylinder, 4-stroke diesel
Power output: Up to 300 horsepower (223 kilowatts)
Torque output: Up to 925 pound-feet (1,254 newton-meters)
Emissions compliance: Tier 1
Cummins 6CT8.3:
Displacement: 8.3 liters (504 cubic inches)
Configuration: In-line 6-cylinder, 4-stroke diesel
Power output: Up to 450 horsepower (336 kilowatts)
Torque output: Up to 1,250 pound-feet (1,695 newton-meters)
Emissions compliance: Tier 1 or Tier 2
Cummins 6C-8.3:
Displacement: 8.3 liters (504 cubic inches)
Configuration: In-line 6-cylinder, 4-stroke diesel
Power output: Up to 300 horsepower (224 kilowatts)
Torque output: Up to 975 pound-feet (1,322 newton-meters)
Emissions compliance: Tier 1