1137 140 1903 – STIHL Carburetor Box Cover (Genuine OEM Part) BBC 22215 Proper reed valve function is

Proper reed valve function is critical for consistent engine performance

With its vortex-shaped profile

Do not attempt to clean or reuse the paper element - replace when dirty or damaged

Heavy-duty steel construction for durability and long service life

1137 140 1903 – STIHL Carburetor Box Cover (Genuine OEM Part) BBC 22215 Proper reed valve function is1137 140 1903 STIHL Carburetor Box Cover (Genuine OEM Part) The STIHL 1137 140 1903 is a genuine OEM carburetor box cover designed to enclose and protect the carburetor and intake components on compatible STIHL chainsaws. This cover helps seal the air intake area, guiding filtered air to the carburetor while protecting internal components from debris, dust, and environmental exposure. Manufactured to STIHLs original equipment specifications, this