The Bearing C/Case is a genuine Stihl crankcase bearing specifically designed for the MS 311 and MS 391 chainsaws. This essential component supports the crankshaft within the crankcase, effectively reducing friction and ensuring smooth, concentric rotation even at high engine speeds. Crafted from high-grade steel with precision-ground races, the Bearing C/Case is engineered to withstand the heat, vibration, and oil/fuel conditions typical of two-stroke engines. By maintaining proper crankshaft alignment, it plays a crucial role in preserving cutting performance and reliability during demanding tasks.
Free shipping
on orders over $100
Right Part Promise
when provided with model info
No sales tax
outside Washington and Wisconsin
- Choosing a selection results in a full page refresh.