GY6 50cc (139QMB) Long Case Engine Gasket Set

GY6 50cc Long Case Engine Gasket Set for QMB139

This gasket set is designed for 50cc 4-stroke QMB139 long case engines. Its job is to keep oil, fuel, and compression sealed in place, which helps the engine stay intact and run well. Whenever you open up any part of the engine or spot a leak, swapping out the gaskets and oil seals is a good idea. It's one of the GY6 50cc scooter parts that support smooth, efficient engine operation.

When to Replace It

Gaskets and oil seals play a major role in keeping the engine running smoothly. Replace them any time the engine is accessed or if you see signs of leaking. Doing so can head off further damage and keep the engine performing as it should.

Specifications

• Size: Fits 50cc 4-stroke QMB139 long case engines
• Overall Length (left CVT cover gasket): 17 inches
• Number of Bolt Holes: 11
• Fits: GY6 50cc 4-stroke QMB139 long case engines

Fitment

Fits:

• GY6 50cc 4-stroke QMB139 long case engines (various unlisted makes and models)

How to choose: Confirm the engine uses the QMB139 50cc long case design, and check that the left CVT cover gasket measures 17 inches overall with 11 bolt holes.

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