Just measure the pin dimensions and find the closest fit at TSC or hardware store. In my experience Kioti uses some nonstandard pins and bolts, so a perfect fit really doesn't exist.
2014 Kioti CK 30 HST with cab. 2018 Cub Cadet Challenger 750 EPS UTV
How old is your blower. Mine is 2013 sb66. The shear pin area is located under a flat cover which is just over the chain sprocket on the left side of the blower. Like in the pic below it has the 2 black/yellow grease gun stickers on it. Take snap pin out and lift cover. You will see two flat pieces with a hole in it. I found turning the driveshaft by hand is the easiest for lining up the holed for the pin. Make sure tractor is not running when doing this. Hope this helps