Cylinder Head; 139QMB
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This cylinder head replaces the stock equipment on bikes running 139QMB engines. Don't forget a new gasket (part number 1100-1331) and the valve assembly (part number 1100-1328)!
Original Parts For Scooters SKU 151-213
Specifications:
- Bore: 39mm
- Exhaust Bolt Hole Spacing: 49.75mm
- Intake Bolt Hole Spacing: 44.75mm
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 Scooterworks: Since our beginning in 1989, Scooterworks has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to after-market parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.
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