Replace a cracked, stripped, or damaged engine block with this GY6 Left Side Crankcase (Standard). A direct OEM-spec replacement for the left half of the engine case on 125cc and 150cc GY6-based scooters, this crankcase fits the widely used 157QMJ engine family and its many variants — covering a broad range of Chinese-manufactured scooters and mopeds.
Specifications
Application: GY6 125cc / 150cc standard engines
Overall Length: 20 inches
Weight: 5.375 lbs
SKU: 164-150 / 164-321
Origin: China
Compatibility
Fits 157QMJ-based 125cc, 150cc, and 169cc engines with the following engine codes:
Engine Code
Engine Code
Engine Code
Engine Code
157QMJ
161QMK
152QMI
1P61QMK
YN1P57QMJ
1P52FMI
154FMI
JJ157QMJ
1P57QMJ
BN157QMJ
BN161QMK-A
Other QMJ / QMK / QMI
Don’t see your engine code? If your engine code contains “QM” or “FM”, this crankcase is likely compatible with your vehicle.
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