oil switch/fuel cock/fuel switch1.For 3KJ50ccengine2.With inside screw thread.3.Can be inverted.4.Low-Tension Motorcycle fuel cock/oil switch/fuel switch About product Item Motorcycle fuel cock/ fuel switch/oil switch Model number SKJ Brand name GOOD Length 99.17mm Fit 50-150cc engine Match ATV, Go Kart, Scooter, Motorcycle