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Universal Parts QMB139 50mm Big Bore Cylinder Kit (151-258)
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In Stock: 30
SKU: 151-258
* Whole number only
Universal Parts QMB139 50mm Big Bore Cylinder Kit
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Additional Images: Enter your email to be notified when back in stock Universal Parts 50mm Big Bore Cylinder Kit for 50cc 4-stroke QMB139 engines. Upgrades to 81.3cc based on a stock stroke of 41.4mm! Includes cylinder, piston, pin, circlips, rings, head gasket and base gasket. *You may need to modify your engine case to accommodate the larger cylinder. - Upgrades to 81.3cc!
- Bore: 50mm
- Overall Height: 70mm
- Cylinder Sleeve Outer Diameter: 54.4mm
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