BSA Pre-Unit Primary Chaincase Inspection Filler Cap 65-3364 A7 A10 B31 M20 M21

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  • Regular price $ 14.95
  • 5 available


*Now In-Stock!* New BSA Pre-Unit Singles & Twins Primary Chaincase Inspection Alloy Cap. If your Missing your Inspection Cap and you need a Replacement to get back on the Road, then this is for you! Comes with a Nice Polished Finish but with some "Extra Buffing" on your part you can have a Mirror Finish! Thread Diameter is approx  1 1/2". Fits many A, B, C & M Group BSA Pre-Unit Twins & Singles (C10, C11, C15, B40, A7, A10, B31, B32, B33, Etc) from the 1940's through the Early 1960's! Please refer to your parts catalog for proper fitment.
*****Please Check your parts book to ensure that this Part is Correct for your application!*****
We also stock the Oil Tank Screw Plug for BSA Pre-Units! Search 65-8560
•Made in Taiwan
•O.E.M Part number is 65-3364