4147 140 1001 STIHL Filter Cover – Genuine OEM Part staffpick Purge Pump Primer - By

Purge Pump Primer - By pressing the bulb

FS90 thrust washer

and more dependable long-term performance under commercial operating conditions

Proper drive tube alignment and rigidity are essential for smooth power transmission

Always follow Sea Foam® dosage recommendations

4147 140 1001 STIHL Filter Cover – Genuine OEM Part staffpick Purge Pump Primer - By4147 140 1001 STIHL Filter Cover Genuine OEM Part The STIHL Filter Cover (4147 140 1001) is a genuine OEM air filter cover designed for use in the spacer flange air filter assembly on select STIHL brushcutters. This filter cover protects the air filter from dirt, debris, and moisture while ensuring proper airflow into the engine. Replacing a cracked, broken, loose, or missing filter cover helps maintain correct sealing, protects the air filter