| Also known as | F13642 |
| Diagram | Fig. 13 — FRAME — BATTERY CARRIER — ENGINE SHIELD · ref 58 |
| Subsystem | electrical |
| Listed in parts books | 1971–1972 |
FRAME OIL FILTER 71-72
Frame-mounted oil filter for 1971-72 Triumph/BSA oil-in-frame unit twins.
This is the frame-mounted oil filter used on the OIF (oil-in-frame) Triumph and BSA unit twins for the 71-72 model years. On these bikes the frame's front downtube doubles as the oil tank, so the filter sits down in that structure rather than in a separate tank like earlier models. It screens the oil before it gets pulled back into circulation, catching debris that would otherwise work its way through the engine.
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The catalog lists this part as F13642 in the older letter-prefix numbering, which is the same physical filter as 83-3642 in the current system. It shows up in the FRAME section of the parts book, tied specifically to the 71-72 window.
If you're working on an OIF twin from this era and pulling the frame oil filter for service or replacement, this is the part number to have on hand. Give us a call if you want to confirm it matches what's in your bike before ordering.
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