27999 Oregon chainsaw sprocket 3/8 low profile clutch drum
Oregon 27999 sprocket for Echo CS-280, CS-290, CS-300 3/8 low profile chain saw is designed for durability and ease of use. This one-piece spur sprocket combines the chain-driving teeth and the clutch cup into a single unit, making it a cost-effective option for all types of chainsaws. Additionally, Oregon's line of spur sprockets is available for John Deere 25EV models.
Check bar or sprocket for info to confirm if you have 3/8 pitch like this sprocket.
3/8 pitch 6 (91) tooth crank shaft diameter is 0.315
Part# for additional bearing is 22152