New BSA replacement oil tank oil filter. Keep your oil clean and free of debris by installing a new high quality BSA oil filter. Oil filter is designed to replace part number 66-8359. Comes with a metal cage with a gauze filter as OEM.
This filter fits inside your BSA oil tank - compatible with BSA M20 and M21 models. Check your parts book to ensure the best fitment.
**Features**
- Made in England
- Replaces part number 66-8359