Blue Line Complete Cylinder Kit (39mm); 139QMB
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This Blue Line OEM cylinder kit fits bikes running 50cc 4-stroke 139QMB engines. The kit includes cylinder, piston, pin, circlips, rings, head gasket and base gasket. Original Parts For Scooters SKU 151-257 Specifications: Bore: 39mm Overall Height: 70mm Cylinder Sleeve Outer Diameter: 44.7mm Compatibility: 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle. About Blue Line: Blue Line offers OEM equivalent replacement parts for on-road scooters. Blue Line parts are a direct-fit replacement when OEM parts are unavailable or overly expensive for your scooter. Since 2018, Blue Line has provided quality parts at great prices.
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