GY6 150 Complete Crankcase Cover (Right Side)

Right Crankcase Cover for GY6 150cc Engines (Complete)

This right-hand crankcase cover fits Series A GY6 engines, including 125cc and 150cc versions. It plays an important role in keeping your scooter's engine running properly. If you are browsing GY6 150cc scooter parts, this cover helps guard the engine and supports reliable operation. Mounting hardware is included so installation is simple.

Design and Fit

This cover follows the OEM-style layout and is a direct swap for Series A crankcases. Not sure which series your engine is? Take off the valve cover and check the distance between the studs: Series A is 54mm apart, and Series B is 57mm apart. Measuring first makes sure you order the right part.

Signs It Needs Replacing

Think about replacing the crankcase cover if you spot oil leaks, visible damage, or general wear. A worn or failing cover can cause engine performance problems, so it is best to deal with it quickly. Routine inspections can catch small issues before they turn into bigger repairs.

Specifications

• Size: 9"L x 7.5"W x 2"H
• Position: Right Side Crankcase
• Includes: Crankcase and assorted hardware
• OEM Part Number: 157QMJ
• Fits: GY6 125cc, 150cc and 169cc engines with Series A crankcase (54mm stud spacing), 157QMJ-based engine codes

Compatibility

Fits:

• GY6 125cc/150cc/169cc engines (Series A crankcase, 54mm stud spacing)
• 157QMJ-based engines: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A
• Other QMJ, QMK and QMI engines
• Engine codes containing "QM" or "FM"

How to choose: Take off the valve cover and measure the stud spacing: 54mm is Series A (this part fits), 57mm is Series B (this part does not fit).

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