原厂山推SD22推土机发动机活塞3017348，康明斯活塞3418660-20凸轮从动件总成HOUSING,CAMFOLLOWER3046420-20推杆20RODPUSH3046430-20推杆20RODPUSH4915263-10凸轮从动件室安装HORSING,MOUNTING3074400-20衬垫20GASKETCAMFOLHOUSING3074401-20衬垫20GASKETCAMFOLHOUSING3074402-20衬垫20GASKETCAMFOLHOUSING3074403-20衬垫20GASKETCAMFOLHOUSINGS120A-20六角螺栓20SCREW，HEXHEADCAP)