Komatsu Cummins N-855 Service Repair Manual How much Horsepower Does a 855 Cummins Have:The Cummins 855 engine was produced in various configurations and horsepower ratings depending on the application and model year. Generally, the horsepower output of the Cummins 855 engine ranged from around 250 to 400 horsepower. However, specific horsepower ratings may vary based […]