1144 140 4402 – STIHL HD2 Air Filter (Genuine OEM Part) Stihl MS 291 and reliable drivetrain performance

and reliable drivetrain performance

and snow attachment systems

Maintains correct valve timing and engine synchronization

and ensuring reliable long-term performance across Ariens and Gravely equipment

Guide Bar Length (Recommended): 20 in

1144 140 4402 – STIHL HD2 Air Filter (Genuine OEM Part) Stihl MS 291 and reliable drivetrain performance1144 140 4402 STIHL HD2 Air Filter (Genuine OEM Part) The STIHL 1144 140 4402 is a genuine OEM HD2 air filter designed to provide superior engine protection and airflow for high performance STIHL chainsaws. Featuring STIHLs HD2 (Heavy Duty) filtration technology, this air filter captures fine dust and debris while maintaining optimal airflow, making it ideal for professional and extreme cutting conditions. Manufactured to STIHLs original equipment