Rim Sprocket kit used on Homelite 20,23,25,27,3300,3350,3800,3850,3314,3316,4100,D4150B,D4550B, 4500 if .325 used instead of 3/8 chain.

Fits Models
HOMELITE/JACOBSEN: i3850B, i4550B, D4150B, D4550B, I4150B, PS33, UT10901, UT10910, UT10926, 20, 23, 25, 2500, 27, 3300, 3314, 3316, 3350, 3800, 3850, 4100, 4500, 4550