Diaphragm carburetor membrane compatible with Fly Euro3 125 150, Liberty 125cc 150cc 200cc 4T models.Designed to fit CM140302 carburetor type.Replaces part number 121661200.proper fuel delivery and engine performance.Made from flexible material resistant to fuel and oil exposure.Easy to install as a direct replacement for worn or damaged diaphragms.Suitable for use in 4-stroke scooter engines requiring this specific membrane type. This is a non- replacement.Any reference to brand names or models is strictly for compatibility purposes.