Blue Line Rocker Arm Assembly (Type 2, 69mm); 139QMB
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This rocker arm assembly is for Type-2 139QMB engines that use a 69mm length valve stem and a taller head (Type-1 engines have a shorter head and 64mm length valve stem).
Original Parts For Scooters SKU 151-282
Specifications:
- Height: 26mm
- For use with 69mm valves
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: 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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