BSA Pre-Unit Primary Chaincase Inspection Filler Cap 65-3364 A7 A10 B31 M20 M21 TR6V OEM part number is 622/238

OEM part number is 622/238

Measures 1 3/4" - Fits Norton Commando Models (Roadster

T120TT & T120C) from 1969-1972

mounting Brackets and Hardware

BSA Pre-Unit Primary Chaincase Inspection Filler Cap 65-3364 A7 A10 B31 M20 M21 TR6V OEM part number is 622/238*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