oil filler cap 加油口盖 ; 加机油口盖 ; 机油口盖

gear oil filler cap 齿轮油进口盖

hydraulic oil filler cap 液压油加注器口盖

engine oil filler cap 发动机机油加注口盖

ENG Oil Filler CAP 发动机油口盖

oil pan filler cap 油盘加油口盖

transmission oil filler cap 变速箱机油加注口盖

oil tank filler cap 机油箱加油口螺塞

gear compound oil filler cap 齿轮油进口盖