GY6 50cc (139QMB)-80cc Performance Air Filter

High-Flow Air Filter for GY6 50cc Engines

This high-flow air filter is built for 139QMB and GY6 50cc 4-stroke engines, aiming to deliver better airflow to the engine. A clear-blue rain and debris cover sits over the filter element, keeping out water and dirt while still letting air pass through easily. You can also browse our GY6 50cc scooter parts range for other components. The flexible rubber intake boot can be adjusted to fit, so it works with most 50cc carburetor flanges.

Build and Layout

The filter uses a high-flow element inside a sturdy blue hard cover that shields it from rain and debris. Clean air reaching the engine is important for good running, and this layout is intended to provide that. A stainless steel hose clamp secures the rubber intake boot to the carburetor.

Fit and Use

This filter is suitable for a range of 50cc machines, such as scooters, dirt bikes, ATVs, and super pocket bikes. The adjustable intake flange covers most carburetor sizes, so it can be installed on many different models without much hassle.

Specifications

• Intake Flange Inner Diameter: 39–40mm (adjustable)
• Flange Outer Diameter: 46mm
• Filter Height: 69mm
• Shield Outer Diameter: 73mm
• Includes: Blue hard rain/debris shield, rubber boot, stainless steel clamp
• Application: 139QMB / GY6 50cc 4-stroke
• Fits: GY6 50cc 4-stroke 139QMB engines and other 139QMB/GY6 vehicles (scooters, dirt bikes, ATVs, pocket bikes)

Fitment

Fits:

• 139QMB and GY6 50cc 4-stroke engines (carburetor flange 39-40mm ID)
• 139QMA, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD engine codes
• Other QMA and QMB models
• Scooters, dirt bikes, ATVs and super pocket bikes with these engines

How to choose: Check your carburetor intake flange. It needs to measure 39-40mm inner diameter, because the rubber boot only adjusts within that range.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Air Filters · Scooter Parts