The Stihl 42210203500 is an authentic OEM crankcase cover designed specifically for Stihl TS 400 cut-off saws. This essential component protects the internal engine mechanisms from dust, debris, and moisture, maintaining the integrity and longevity of the saw's engine. Manufactured to Stihl's rigorous quality standards, it ensures a precise fit and reliable performance, crucial for the demanding conditions of professional use. Replace a damaged or worn cover to restore proper engine sealing and operational efficiency.