S-Type Trimmer Head Assembly

Hi Jean. Thank you for your feedback.

The Greenworks 80V 16' Cordless Battery String Trimmer (STB409 / 2112302) has our Load n' Go trimmer heads which offers super-fast, hassle-free line reloading. The part number listed from the manual is R0201834-00 (trimmer head assembly). Please see the following link: https://greenworkstools.ca/products/trimmer-head?_pos=1&_psq=R0201834-00&_ss=e&_v=1.0.

The Max Line Diameter is 0.095' / 0.080', and replacement spool line can be purchased at your local hardware supplier.

Please see the rewinding instructions below:
Load n' Go trimmer heads which offer super-fast, hassle-free line reloading. Please see the video below.
1. Remove the remaining cutting line on the spool.
2. Line up the slots on the spool cap with the slots on the trimmer head.
3. Put the cutting line through the hole. Push the cutting line until it exits the opposite hole.
4. Pull the cutting line through until there is an equal quantity of cutting line on each side.
Rewind Spool-(https://youtu.be/2eiGIXXzx2w?si=yud1mbAozXZHLS1P

Should you have any questions or require further assistance, we encourage you to reach out to our customer support team. You can contact us via live chat or call our toll-free helpline at 1-888-90-WORKS (1-888-909-6757) to speak directly with a live agent. We hope this information helped!