曲轴总成4941136/曲轴4944438/4982121,QSB3.3对口连杆4944475/4993829/4992924,曲轴前后油封C620421134,机冷器3389207,旧款机冷器C6205615400/4982639,新式机冷器4983996,机油泵4982682,机油泵C6207511201/4945774,连杆6204411—C6204313101—对口连杆4276397、偏口