| Diagram | Fig. 14 — PRIMARY TRANSMISSION AND OIL PUMP DRIVE · ref 7 |
| Subsystem | engine bottom |
| Listed in parts books | 1974 |
Clutch sprocket (43T)
Clutch sprocket, 43 tooth, for the primary chain drive on the engine bottom end.
This is the clutch sprocket, 43 tooth, part number 57-4637, listed in the primary transmission and oil pump drive section of the parts book. It's the sprocket that carries the primary chain drive to the clutch assembly, sitting on the engine bottom end where the primary chain runs from the engine sprocket back to the clutch basket.
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The catalog only shows this part appearing in one listing, tied to the 1974 model year. We don't have more detail on it beyond the tooth count and where it sits in the primary drive train, so if you're matching this up against what's currently on the bike, check the tooth count and spline fit before you order.
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.
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