xams 286 engine change

Hi, I m manager {mechanical maintenance} in a pRivate company. I have portable air compressor , model Atlas Capco xams286 with mercedes engine installed. The engine requires overhauling now. Some one in a market suggested me to change engine rather than overhauling the mercedes engine due to expensive spare parts. The suggested engine to be installed is 6CT cummins engine. The question is, can i switch to 6CT cummins engine? Is it compatable to already existing mercedes engine?