Universal Parts 47mm QMB139 Cylinder Kit

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Universal Parts 50cc QMB139 4-stroke 47mm, Performance Cylinder Kit. Upgrades to 72cc! Kit includes cylinder, piston, rings, piston pin, cir clips, head gasket, and base gasket.Ple ase see our Warranty & Returns Policy.*You may need to modify your engine case to accommodate the larger cylinder. Show more