| Also known as | M21-2115 |
| Diagram | Fig. 13 — FRAME — BATTERY CARRIER — ENGINE SHIELD · ref 45 |
| Subsystem | electrical |
| Listed in parts books | 1971 |
BSA STUD,BOTTOM ENGINE MT.A65
Bottom engine mounting stud for the BSA A65, part number 21-2115.
This is a bottom engine mounting stud for the BSA A65, part number 21-2115, also listed as M21-2115. The catalog description calls it out plainly as a stud for the bottom engine mount on the A65, and it shows up in the frame and battery carrier area of the parts book.
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A stud like this is what actually clamps the engine into the frame cradle at the mounting point, taking clamping load between the crankcase and frame lug. It's a small part but it's structural — if it's stretched, corroded, or the threads are chewed up, the engine mount won't clamp up right.
Our record on this one is brief, just the single catalog listing, so if you're not sure this is the exact mounting point you need, give us a call and we'll confirm before you order.
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