| Also known as | S1913 |
| Diagram | Fig. 1 — CRANKSHAFT AND CONNECTING RODS · ref 6 |
| Subsystem | engine bottom |
| Listed in parts books | 1969 |
Flywheel bolt (1 15/32 in. U.H.)
A flywheel-to-crankshaft bolt, 1 15/32 in. U.H., from the crankshaft and connecting rods assembly.
This is a flywheel bolt out of the crankshaft and connecting rods section of the parts book, listed with a length of 1 15/32 in. under the U.H. head. It's the fastener that clamps the flywheel to the crankshaft, one of the pieces holding the rotating assembly together inside the crankcase.
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The legacy number for this one is S1913, so if you're working from an older parts book and see that reference, it's the same bolt as 21-1913. It only shows up once in our catalog records, tied to 1969, so we don't have a broad spread of model-year data on it beyond that.
If you're rebuilding a bottom end and need to confirm this is the right bolt for your crank and flywheel setup, give the shop a call before you order so we can check it against what you've got on the bench.
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