GY6 Transmission Cover Assembly (With Bearings)

Transmission Cover Assembly for 125/150cc GY6 Engines

This transmission cover assembly is made to serve as a dependable stand-in for the original part on 125cc and 150cc GY6 engines. Bearings come included to help the unit turn smoothly. It is among the simpler GY6 scooter parts to change during routine service. Measuring 7 inches long, 6 inches wide, and 1 inch high, it sits neatly within your scooter's drivetrain.

Build and Engine Match

Designed as an OEM-style replacement, this assembly is meant to line up accurately across several engine codes. Its purpose is to take the place of a worn or aging cover so the scooter's function is restored. It suits 157QMJ-based engines, covering 125cc, 150cc, and 169cc versions. When the engine code includes "QM" or "FM," this part will most likely work on that vehicle.

Signs It Is Time for a New Cover

A transmission cover assembly should be swapped out once leaks or damage become visible. Installing a fresh cover can help the scooter run as it should and may head off problems later on. Checking the part on a regular basis makes it easier to tell when replacement is due.

Specifications

• Size: 7"L x 6"W x 1"H
• Position: Transmission cover
• Fits: GY6 150cc engine (157QMJ), with 125cc and 169cc GY6 engines that use QM or FM engine codes
• OEM Part Number: 157QMJ

Fitment

Fits:

• GY6 150cc (157QMJ)
• Other GY6 125cc, 150cc and 169cc engines with QM or FM engine codes (for example 161QMK, 152QMI, 154FMI)

Where it goes: part #1 on the transmission diagram for the GY6 150cc (157QMJ).

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