Chongqing Cummins engine cylinder head design uses a different series of different forms of assembly: K19 single cylinder single cover, the 6 cylinder.Nta855 two cylinder 1 cylinder 3 common machine head. M11 shared a six cylinder 1 cylinder head cylinder machine. Cummins cylinder head cylinder head as the finished product, has installed the valve group and water plugging, oil plug, valve components, after replacing the repair kit can be installed directly on the cylinder use. Reduce the installation of 24 valves and components of the program, is the first choice of the