(Weifang Weichai series diesel generator water tank of 138-6460-0749 ZH4100, ZH4100P, Lin) ZH4102P, 2100D, K4100D, K4100ZD, R4105D, R4108ZD, R4105ZD, R6105D, R6105ZD, R6105AZLD, R6105IZLD, R6108, R6110, HK6113ZLD cylinder cover for sealing the top of the cylinder, and the piston top together form a combustion chamber and cylinder sleeve. In addition, the cylinder head and the body of the water jacket and the oil and oil pan are part of the cooling system and lubrication system. Between the cylinder pad installed at the bottom of the cylinder head and cylinder sleeve on the plane,