| Also known as | E3170, M70-3170 |
| Diagram | Fig. 3 — CYLINDER BARREL AND HEAD · ref 3 |
| Subsystem | engine top |
| Listed in parts books | 1963–1964 |
CYLINDER STUD T20 4 19/32
Cylinder stud for the T20, 4 19/32 inches long, secures the barrel and head to the crankcase.
70-3170 is a cylinder stud for the T20 model, running 4 19/32 inches in length. These studs tie the cylinder barrel and head down to the crankcase, and they're the kind of part that's easy to overlook until one strips or snaps on you.
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Our records on this one are thin — it's a straightforward catalog listing without a lot of extra notes attached. If you're replacing a set, best to check the length against what's coming out of your engine before you order, since studs on these small twins can vary by position.
The part also shows up under the alias M70-3170 if you're cross-referencing an older parts book.
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