... EngineSteyr technology, made in ChinaModelWD615.50,water-cooled,four strokes,6 cylinders in line,turbocharged, directly injectionDisplacement ... Single dry frictional disc,Hydraulic control and compressed air assistedGearbox Model5S-112GP, mechanism,9gears,1reverse gear, ... gap can be adjusted automatically, double circulation air brake systemAssistant brakeEngine exhaust brakePark brakePotential springs ...