Flange Bolt (M6x12) for CSC Go., GY6 50cc (139QMB) Scooters

Flange Bolt Suited to CSC Scooters

This M6x12 flange bolt is built for a range of CSC scooters, such as the Bella Classic 50 and Nitro Sport 50. Its job is to hold the oil pump cover in place, which helps oil move through the system correctly. Among GY6 50cc scooter parts, it is one that you can swap out yourself during routine upkeep or repairs. Keeping it in good condition helps the engine run smoothly.

Role and When to Replace

This bolt keeps the oil pump cover firmly attached. If oil starts leaking, or the current bolt is stripped or damaged, it is time to install a new one. Maintaining a tight, sealed joint matters for overall engine performance.

Fitting Tips

Installing this bolt is simple. It has an M6x1.00 thread and a 12mm shaft, so it lines up directly with compatible models. Before fitting the new bolt, wipe the area clean so no debris gets into the engine.

Specifications

• Thread Size: M6x1.00
• Shaft Length: 12mm
• Overall Length: 18mm
• Fits: CSC Go and Go Max, and 139QMB-based GY6 50cc engines (oil pump cap, front fork, footrest, electrical)

Compatibility

Compatible with:

• GY6 50cc (139QMB) (engine codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD; codes containing QM or FM)
• CSC Go (50cc, 139QMB engine)
• CSC Go Max

Placement: part #6 on the front fork diagram for the GY6 50cc (139QMB), CSC Go; part #4 on the footrest/stand diagram for the GY6 50cc (139QMB), CSC Go; part #11 on the electrical equipment diagram for the GY6 50cc (139QMB), CSC Go.

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