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49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm
49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm
49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm
49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm
49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm
49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm

49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm

Part #: 633497
$44.99

This cylinder kit used on QMB139 (GY6-50) 49cc scooters.




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