CAT C6121 Engine,ZF gearbox. Engine ModelCAT licensed C6121TypeDirect injection, turbocharged, ... 230g/Kw. hTransmission System Type3 elements, single stage(ZF licensed)Torque ratio1.94Cooling typeOil cooling, pressure circulationGearbox typePower ... shift(ZF licensed)Gear shifts( Forward/reverse)F6/R3Traveling speed( ...