| Also known as | E4889 |
| Diagram | Fig. 16 — EXHAUST PIPES AND MUFFLERS (U.S.A.) · ref 3 |
| Subsystem | exhaust |
| Listed in parts books | 1967–1968 |
Sleeve nut
Sleeve nut for the high-pipe exhaust mounting hardware on TR6C models.
70-4889 is a sleeve nut used on the exhaust pipe mounting hardware for the high-pipe setup on TR6C models. It shows up in the parts book under the figure for exhaust pipes and mufflers, both the general listing and the U.S.A. version, which lines up with TR6C's off-road high-level pipe arrangement. The older stock number for this same part is E4889, so if you're working from an early parts book that's the number you'll see instead of 70-4889.
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This nut works alongside the exhaust pipe brackets and pipes themselves to keep the high-mount exhaust secured against the frame. Catalog appearances run from the mid to late 1960s, consistent with the high-pipe TR6C configuration of that era.
If you're replacing exhaust hardware on a high-pipe setup, it's worth checking this against the bracket and pipe part numbers you're running, since sleeve nuts like this one are matched to a specific pipe and bracket combination.
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