| Diagram | Fig. 34 — DISTRIBUTOR AND COIL · ref 6 |
| Listed in parts books | 1960–1962 |
DISTRIBUTOR ROTOR 3TA/5TA
Distributor rotor arm for the Lucas 18D2 distributor fitted to Triumph 3TA and 5TA models.
This is the distributor rotor for the Lucas 18D2 distributor as fitted to Triumph 3TA and 5TA models. The rotor arm sits on top of the distributor shaft and spins past the fixed contacts inside the cap, sending spark to each plug in turn. It's a simple part but a worn or cracked rotor can cause misfires or no-start conditions, so it's worth checking when you're troubleshooting ignition issues on these machines.
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Our records show this one under PN 423486, also listed as LU423486P. If you're working on a 3TA or 5TA with the 18D2 distributor, this is the rotor that catalog calls out for it.
We don't have a lot of extra detail on file beyond that, so if you're not sure your bike uses the 18D2 distributor, give us a call and we'll sort out fitment before you order.
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