| Also known as | E3996 |
| Diagram | Fig. 1 — CRANKSHAFT AND CONNECTING RODS · ref 1 |
| Subsystem | engine bottom |
| Listed in parts books | 1964 |
CRANKSHAFT AND FLYWHEEL ASSEMBLY
Complete crankshaft and flywheel assembly for the engine bottom end, PN 70-3996 (also E3996).
This is the crankshaft and flywheel assembly, listed under part number 70-3996 (also shown as E3996 in older parts books). It's the complete rotating assembly at the heart of the engine's bottom end, where the connecting rods attach and the whole thing spins to turn piston motion into the drive that eventually gets to the gearbox and rear wheel.
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The catalog entry we have on this one is brief, coming from a single appearance in a 1964 parts listing under the CRANKSHAFT AND CONNECTING RODS figure. We don't have more detail on this one beyond that it's a Triumph assembly for the engine bottom end.
Given how specific and central a part like this is, don't order on a guess. Call the shop and we'll confirm fitment against your engine before you buy.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sorry if we got something wrong here. If you think this information isn't correct, .

