| Also known as | T2409 |
| Diagram | CHAINCASE AND CHAINS |
| Subsystem | primary |
| Listed in parts books | Not catalogued by year yet |
Chaincase
The outer primary chaincase cover that encloses and protects the primary chain and clutch on the left side of the engine.
This is the chaincase, the outer cover that encloses the primary chain and clutch assembly on the left side of the engine. It shows up in the catalog under the older T2409 designation as well as the current 57-2409 number, both referring to the same physical part.
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The chaincase keeps the primary chain running in an enclosed, oil-tight environment, protecting it from road grit and holding the lubricant that keeps the chain and clutch running smoothly. It's a structural cover as much as anything, bolting up against the inner primary cover to form the sealed housing.
Our catalog record on this one is thin - just the single entry tying it to 1968 appearances. If you're sourcing one for a build, call the shop and we'll confirm fitment against your specific engine before you order.
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