Replace worn or missing intake manifold mounting studs with this pair of Blue Line M6x60mm studs for 139QMB-based 50cc scooter engines. Each steel, double-ended stud has M6x1.00 threads, a smooth center shank, rounded tips, and a dark phosphate finish. These studs secure the intake manifold to the cylinder head. Sold as a pair. SKU: 1100-1333 | MPN: 4789.
Features
- Pair of steel, double-ended intake manifold studs
- M6x1.00 threads on both ends
- Smooth center shank with rounded tips
- Dark phosphate finish
- Designed for 139QMB-based 50cc scooter engines
Specifications
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Brand: Blue Line
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SKU: 1100-1333
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MPN: 4789
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Thread: M6x1.00
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Overall length: 63mm
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Finish: Dark phosphate
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Quantity: 2 studs
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Country of origin: China
Confirmed Scooter Fitment
| Make |
Model |
| Chicago Scooter Company |
Bella Classic 50 |
| Chicago Scooter Company |
Nitro Sport 50 |
| Chicago Scooter Company |
Pug 50 |
| Chicago Scooter Company |
go |
| Chicago Scooter Company |
go MAX |
Compatible Engine Codes
| Engine Code |
Engine Code |
Engine Code |
Engine Code |
| 139QMA |
139QMB |
1P39QMB |
1P39QMA-2 |
| YN139QMB |
JJ1P39QMB |
139FMA-2 |
BD1P39QMB |
| BN139QMB |
147QMD |
Other QMA models |
Other QMB models |
Check the engine code stamped on your scooter before ordering. 50cc engines marked with a listed QMA, QMB, QMD, or FMA code may use this stud size, but verify the M6x1.00 thread and 63mm overall length against the original part.
Model Fitment
CSC Bella Classic 50 | CSC Nitro Sport 50 | CSC Pug 50 | CSC go | CSC go MAX | All 139QMB/QMA-based 50cc/80cc engines | Engine codes: QMA, QMB, QMD, FMA | M6x1.00 intake manifold stud bolt pair | SKU: 1100-1333
