变速箱安装螺栓
transmission mounting bolt
变速箱液压油箱加注口盖
transmission hydraulic tank filler cap
变速箱油箱排放塞
transmission tank drain plug
变速箱油箱排放组件
transmission oil tank drain assembly
变速箱注油滤清器壳体排放螺塞
transmission charge filter housing drain plug
燃油箱排放阀
fuel tank drain valve
fuel sump tank drain valve
燃油箱排放阀检视盖
fuel tank drain valve access cover
曲轴箱排放物控制系统
crankcase emission control system