... Adjustable Speed Governor for Cummins M11,N,K series 1.big power for >500kw cummins engine 2.factory sales 3037359 Adjustable Speed Governor for ... trimmer potentiometer to fine-tune the speed ± 100RPM, interference will not occur;For more than 300KW Cummins generator ... ,very convenient and easy for u to import item from international. 3037359 Adjustable Speed Governor for Cummins M11,N,K series ...