Description
The Gasket Genius air filter set (3 pcs) fits the Stihl MS171 chainsaw and replaces part number 1139 124 0800. Each filter is engineered to trap dust, sawdust and debris before it reaches the carburettor and engine, helping ensure clean airflow during operation.
By maintaining filtered air intake, the set supports stable engine performance, reliable starting and reduced internal wear caused by contaminated air. Proper filtration also helps sustain the correct fuel‑air mixture for efficient running.
A practical solution for replacing worn, blocked or aged air filters on compatible petrol chainsaws, especially in dusty working environments. Supplied as a pack of 3 filters to make regular maintenance easy and cost‑effective.
Fits specified Stihl chainsaw model:
- Stihl MS171
Replaces part number:
- 1139 124 0800








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