Motorcycle Fuel Taps Oil Switch For PK50 Pks PKXL 50 S Automatic 1984 (VA51T) 139938 121670150 Fuel tap oil switch designed to fit select models including PK50, PKS, and PKXL 50 S Automatic from 1984 with engine code VA51T.This part is compatible with using part numbers 139938 and 121670150.The unit functions as a fuel and oil control switch, integrating into the scooter's existing fuel system for proper.Designed for direct replacement, it connects to the fuel line and oil where applicable, supporting fuel delivery and system functionality. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.