GY6 Rear Transmission Crankcase Breather Hose

GY6 Rear Crankcase Breather Hose is a direct replacement on MOST GY6 150cc and 125cc 4 stroke engines. The rubber hose and rubber grommet fit directly into the stock transmission location. This is located near the rear shock and rear gearbox. This is essential for allowing your transmission gear to release air and not build up too much pressure from the oil. Without having a rear breather you run the risk of debris falling in and damaging your rear transmission. If you have an old GY6, always replace the hose when doing the transmission as it can become hard and brittle.

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