Cummings ISB 5.9L Turbo Diesel 300hp
I'm new to the diesel engines so how many different Cummins engines do they normally use for RV's? Someone was telling me that the ISB 5.9 is small for a diesel pusher?? So please done rip on me if ...
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The 5.9 is a great LITTLE engine and does well if the MH is not very heavy. The next size up is the newer ISB 6.7L, then the Cat 3126/C7 at 7.2L, then the ISC 8.3L, and then the ISL 8.9L in the 400 HP and less. A ISC 300 HP will have 1000 ft lbs of torque while a ISB 300 HP will have 660 a BIG difference for pulling even small hills.
