| Diagram | Fig. 34 — SPEEDOMETER AND TACHOMETER · ref 6 |
| Subsystem | electrical |
| Listed in parts books | 1979 |
RSM3003/23 Tachometer head - Smiths
Smiths tachometer head, RSM3003/23, catalogued for 1979 Triumphs.
This is the Smiths tachometer head listed under RSM3003/23, catalogued for 1979. It's the instrument itself, the round dial and mechanism that shows engine speed, not the drive cable that spins it. Smiths made both the speedo and tach heads for these bikes, and they were sold and serviced as separate units, so if the needle isn't reading right the head is often the part to look at.
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Our catalog record only ties this one to the 1979 model year, with a single appearance in the speedometer and tachometer figure. We don't have more detail on it beyond that, so if you're matching this against an older bike or a different dial face, give us a call and we'll go over fitment before you order.
If you're pulling one off the bike, keep track of which cable and mounting hardware go with it, since the head, the drive cable, and the mounting rubber are all separate parts even though they get talked about as one "tach" at the counter.
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