Star Wars snow speeder 2017

Banton77

Hi
I am trying to find / buy a Lego part. I think it’s technic and it’s a sprocket. It’s on 2017 Star Wars snow speeder instructions page #165 instruction #252 not the gear but the sprocket with holes around the inside and axle slot and has ridges around the outside

Anyone help please

Thanks

fitbricks

https://fitbricks.brickowl.com/store/lego-weapon-barrel-31511-98585#17789437