The STIHL 11130841000 crankcase is a genuine OEM replacement part designed for specific STIHL chainsaw models, including the 020 AV, 020 S, and 020 AVS. This essential component forms the main housing for the engine's internal parts, providing structural integrity and protection. Manufactured to STIHL's rigorous standards, it ensures a precise fit and optimal performance, crucial for maintaining the chainsaw's operational efficiency and longevity. Replacing a damaged or worn crankcase with this authentic STIHL part restores the chainsaw's reliability and prevents further mechanical issues.