GY6 50cc (139QMB) Drive Face Assembly (Aluminum)

Drive Face Assembly for GY6 50cc Engines

This aluminum drive face assembly is made for GY6 50cc engines, specifically the QMB family, which includes engine codes such as 139QMA, 139QMB, and several others. It is one of the GY6 50cc scooter parts available for your machine. Fitting a new drive face assembly can help your scooter transfer power more efficiently, which may lead to quicker acceleration and a more responsive ride.

Construction and Material

This drive face assembly is made from lightweight aluminum, so it stays durable without adding extra weight to the scooter. The material also helps with heat dissipation, supporting steady engine operation during regular riding. The assembly is designed for everyday use and should hold up across a range of riding conditions.

Installation and Compatibility

This assembly fits directly onto GY6 50cc engines and is a useful part for routine maintenance or upgrades. It works as a simple replacement that helps the transmission system of your scooter run as intended. Because it fits properly, it supports consistent performance so you can ride with confidence.

Specifications

• Material: Aluminum
• Position: Drive Face Assembly
• Fits: GY6 50cc (QMB) engines, including 139QMA, 139QMB and 147QMD (GY6 80cc) codes
• OEM Part Number: 139QMB

Fitment

Compatible with:

• GY6 50cc engines also known as QMB (139QMA, 139QMB, 1P39QMB, 1P39QMA, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, LJ139QMB)
• GY6 80cc engine (147QMD)

How to choose: Compare the engine code stamped on your engine case with the codes listed above, such as 139QMB, to confirm a match.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Transmission & Final Drive · Scooter Parts