4182 640 0145 STIHL Gear Head – Genuine OEM Part 2024 Scag SZL48H-22KT Function: Enhanced airflow

Function: Enhanced airflow

or damaged throttle shafts can cause sticking throttle operation

Replace at the first sign of wear to maintain cutting performance

FD501D cap

4182 640 0145 STIHL Gear Head – Genuine OEM Part 2024 Scag SZL48H-22KT Function: Enhanced airflow4182 640 0145 STIHL Gear Head Genuine OEM Part The STIHL Gear Head (4182 640 0145) is a genuine OEM replacement gear head designed for use on select STIHL professional battery powered pole pruners and high reach pruning systems. This gear head is installed at the cutting end of the drive tube assembly and transfers power from the internal driveshaft to the saw chain, providing the proper gear reduction for smooth, efficient, and controlled cutting