GY6 Zinc Alloy Vacuum Fuel Petcock For Scooter

GY6 Zinc Alloy Vacuum Fuel Petcock, Fuel Line Replacement Part For Scooter. The vacuum fuel petcock is the core control part of fuel tank for GY6 scooters, which opens and cuts fuel supply relying on engine intake vacuum. After long time riding, the internal rubber diaphragm is prone to aging and damage, leading to poor fuel supply or continuous oil leakage, which affects vehicle startup and driving safety and requires timely replacement. This GY6 vacuum fuel petcock serves as repair replacement for GY6 series scooters.

Its housing is integrally die-cast from zinc alloy, corrosion resistant and resistant to vibration and temperature change during daily riding. The core vacuum diaphragm is made of gasoline-resistant rubber, which will not swell and fail easily in gasoline to maintain stable sealing. Different from manual petcocks, it delivers fuel only when vacuum is generated during engine startup and shuts off fuel automatically after engine stop to reduce leakage risk. Made to original specification with matched thread connector, it can be installed directly without extra machining.

It fits Chinese scooters with GY6 engine of 50cc,125cc,150cc, widely used for daily city commuting. As a wearable fuel system part, it is suitable for repair shop stock and bulk purchase. After replacement, it restores normal fuel supply and reliable scooter operation. Please confirm your original petcock is vacuum type before purchase.