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Rebuild your BSA A50 / A65 top end the proper way using our high quality USA made bronze valve guides
I mounting bolt
Compatible with 42-5550 & 42-5588 rims
then you have come to the right place
70-9551 or E9551
BSA M20 / M21 Replacement Oil Tank Filter (1) 66-8359 Nicholson Rebuild your BSA A50 /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