Description:

2 x Inner Diameter:19.8mm/0.77",Outer Diameter:30mm/1.18",Width:5mm/0.19";1 x Inner Diameter:17mm/0.66",Outer Diameter:30mm/1.18",Width:6mm/0.23";1 x Inner Diameter:20mm/0.78",Outer Diameter:32mm/1.25",Width:7mm/0.27";1 x Inner Diameter:27mm/1.06",Outer Diameter:42mm/1.65",Width:7mm/0.27".. Oil seal kit replacement for 49cc 50cc 139qmb GY6 scooter moped ATV.. Prevent external dust from entering the inside of the oil seal and damage the oil seal lip,reduce the internal pressure of the oil seal,reduce the risk of oil leakage,and also prevent the oil from the outer cylinder from flowing into the inner cylinder to accumulate,reducing the risk of oil leakage.. The oil seal is made of high-strength rubber,which is durable,strong,light,and not easy to age.High temperature and corrosion resistance.The skeleton acts as a reinforcement and enables the oil seal to maintain its shape and tension.Easy to install..