GY6 50cc (139QMB) Left Crankcase

Left Crankcase for GY6 50cc Scooters

This left-side crankcase is made for GY6 50cc engines, including the 139QMB model. It can be used to swap out a crankcase that is worn or broken. The part is central to how your scooter runs. It is one of the simpler GY6 50cc scooter parts to fit yourself at home.

Role of This Part

The crankcase holds key engine parts, including the crankshaft and oil pump. A cracked or damaged crankcase should be replaced to help your scooter keep running properly and efficiently.

Specifications

• Position: Left
• OEM Part Number: 139QMB
• Fits: GY6 50cc engine (139QMB) left crankcase half

Fitment

Compatible with:

• GY6 50cc 139QMB engine

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