This is a high-quality Archer replacement spur sprocket. This is a 6-tooth 3/8"LP pitch sprocket and it comes with a needle bearing. The sprocket fits the following chainsaw models:
Dayton: 4Z022 4Z023 4Z109. Skil: 1620 1622 1624 1634.
Western Auto: 4010 012 014 110 112 214 1800 2000 S25DA
Mastercraft: 54-5659 54-5661 54-5662 54-5663
Poulan: Micro 25 180 205 225 235 1800 2000 2100 2300 2400
Sears: 41519 41521 41524 59042 59521 59714 59816 59819 59824
59880 59884 59886 35093 35094 35201 35202 35203 35205
Skil: 1620,1622,1624,1634.
Replaces Oregon part# 28004 and Rotary part number 36-4359