康明斯B3.9,B4.5,QSB4.5发动机整机配件特供:缸盖3965771/3965770/3968196,缸垫3283569,进气门3920867,排气门3920868,水泵3285414,水泵3286278,进气加热器3969987,发电机3972730,皮带张紧轮3976834,缸体3938366,缸体总成4089546,缸套3904166,凸轮轴3939377,凸轮轴键3902332,凸轮轴支撑3927155,凸轮轴齿轮3946436,活塞环4089460,活塞组件4089462,活塞3939398,活塞销3939374,活塞销卡环3939375,连杆总成3939407,连杆3939406,连杆瓦3939390,连杆瓦3939380,曲轴3939367,曲轴键3904483,曲轴齿轮3929027,曲轴瓦3802010(含3929016,3926723,3929021),水泵皮带3290136,机冷器芯3957543,风扇支架3958412,风扇皮带轮3914462,排气歧管3901919,排气管垫3927154,机滤3934429(LF3805),飞轮总成4933802(飞轮4933801,飞轮齿圈3905427),飞轮壳3937552,前齿轮室盖3286312,喷油泵3957700,输油泵4983585,机油泵4939585,油底壳3973071,油底垫3938162,马达3971603,节温器3917324,齿轮室3920758,曲轴皮带轮3914494,喷油器总成4089727/,喷油器3939401,增压器4089467,增压器4035052,增压器4033301、4038790、HX25W,H30W,3772299增压器,2838804增压器。