GY6 50cc (139QMB) Complete Air Box Assembly
ITEM# TT-23899
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Description
Full Air Box Unit for GY6 50cc Engines
This complete air box unit is built for scooters running 139QMB engines. It is meant to take the place of the factory airbox, keeping air flowing correctly to the engine. Listed among GY6 50cc scooter parts, it plays a role in keeping the engine running efficiently. A foam air filter comes included, which suits scooter owners who need to swap out a worn airbox setup.
Role and Why It Matters
The air box is what channels intake air into the engine, and combustion depends on that air. When the original airbox is cracked or no longer works well, the scooter can lose power. Fitting this assembly in its place helps bring airflow back to normal, which can support better acceleration and general engine condition.
Fitting and Compatibility
This unit is a direct swap for the stock airbox and works with a range of 139QMB engine codes. Installation is simple enough for owners who like to handle their own maintenance and repairs. Check that your engine code is on the list before ordering to make sure it will fit.
Specifications
- Overall Length: 18 inches
- Inlet Tube Inner Diameter: 36mm
- Bolt Hole Spacing: 123mm
- Includes Air Filter: Foam
- Fits: GY6 139QMB-based 50cc and 80cc scooter setups (matching QMA/QMB configurations)
Fitment
Fits:
- GY6 139QMB-based 50cc scooters (matching airbox configuration)
- GY6 139QMB-based 80cc scooters (matching airbox configuration)
- Engine codes: 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD
How to choose: Compare the 36mm inlet tube inner diameter and 123mm bolt-hole spacing with your current airbox mounting points and carburetor connection.
Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Air Filters · Scooter Parts
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