Stihl Air Filter HD2

The STIHL 1144-140-4402 HD2 Air Filter is a genuine OEM replacement designed to protect chainsaw engines from dust, dirt, sawdust, and debris. Its high-performance, washable synthetic filtration material helps maintain proper airflow, improve engine performance, and extend engine life, even in demanding cutting conditions. This air filter is compatible with STIHL MS 500i, MS 500i-R, MS 651, MS 661, MS 661 C-M Magnum, and MS 661 C-M R Magnum chainsaws.