Max Flow Chrome Petcock for Harley-Davidson Gas Tanks (Left Side Outlet) OEM Style Chrome Petcock This Harley-Davidson new style petcock is engineered without O-rings to insure against gas leakage while providing maximum flow. Has filter screen and reserve. Left side spigot outlet petcock. Complete with chrome 13/16" nut and nylon mesh filter screen. Replaces OEM 62129-75T Fits Harley-Davidson Tanks 1975 and later models and any Custom Application with external 13/16" NPT. OEM 62163-75. *Product ID = 2766