| Also known as | MC34PB |
| Diagram | Fig. 28 — HEADLAMP AND FLASHER LAMPS · ref 17 |
| Subsystem | electrical |
| Listed in parts books | 1974 |
WIRING HARNESS 71-74 T100R
Main wiring harness for 1971-74 Triumph 500cc twins including the T100R.
This is the main wiring harness for the 1971-74 Triumph 500cc twins, covering the T100R and related models in that family. It's the cloth-braided loom that carries the bulk of the bike's electrics, tying together the ignition, lighting, and switch circuits into one factory-style harness rather than a pile of loose wires.
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Our records show this listed plainly as the wiring harness for 71-74 T100R, and it also turns up under the number 54960714 and the earlier-style number 99-1158 in other references. If you're rewiring a bike from this era, this is the harness that's meant to go in as the core loom.
Worth noting: this main harness doesn't necessarily cover every subharness on the bike, so if your machine has a separate headlight subharness, you may need to source that piece in addition to this one. Give us a call if you want help sorting out what else you need before you order.
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