DONGFANGOil Seal 19.8×30×5 for 139QMB GY6 50cc 80cc Moped Scooter Motorcycle Bike

This oil seal fit perfect, I used some GREY gasket maker on outside and inside of seal that touches metal and greased the inside of seal for the ring inside, installed with just fingers no tools for install due to gasket maker helps slide into place. I'd give it some time for gasket maker to set up, it helps create a better seal. Forgot to mention, on the back side or inner side of seal. There is a spring on inside, pack some grease in that area to protect spring I put up a picture of side to pack. Did my seal on Saturday the 16th, would have leaked BUT no leak = FIXED

Thad stopped the oil leak in its tracks..Easy to install..