| Also known as | E12026 |
| Diagram | Fig. 5 — CLUTCH AND PRIMARY CHAINCASE · ref 1 |
| Subsystem | primary |
| Listed in parts books | 1971 |
Primary chaincase cover
Outer primary chaincase cover for the Triumph primary drive, listed in the 1971 CLUTCH AND PRIMARY CHAINCASE parts-book figure.
This is the primary chaincase cover for the Triumph primary drive, part number 71-2026, also known by its earlier alias E12026. It sits over the primary chain, clutch, and drive sprockets on the left side of the engine, bolting up as the outer half of the chaincase.
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The cover keeps oil in and road grime out of the primary chain and clutch assembly, and it's one of the parts you pull off any time you're getting into the clutch or checking chain adjustment. Our catalog record shows it appearing in the CLUTCH AND PRIMARY CHAINCASE figure for the 1971 model year.
We don't have more detail on this one beyond that single catalog entry, so if you're matching it to a specific machine, call the shop and we'll confirm fitment before you order.
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