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100cc QMB139 50mm Piston Kit GY6 Engine
is backordered and will ship as soon as it is back in stock.
50mm Piston with Pin ,Rings and Cir Clips for GY6 50 139qmb 4-stroke engines.
* Piston Diameter: 50mm
* Wrist Pin Diameter: 13mm
* Piston Pin Length: 38mm
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