Make sure you haven't got the discount earlier.
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)
O-Ring 7 90072000007
Fits your CS-4500 Chainsaw!
Fits your CS-4500 Chainsaw!
PartSelect Number PS9151388
Manufacturer Part Number 90072000007
Manufactured by
Echo
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)