| Diagram | Fig. 26 — CONTACT BREAKER AND IGNITION COIL · ref 1 |
| Subsystem | engine bottom |
| Listed in parts books | 1963–1964 |
CONTACT BREAKER, type 4CA
A Lucas type 4CA contact breaker (points) unit for the ignition system.
This is a Lucas 4CA contact breaker, the points unit that generates the spark timing signal for the ignition system. The catalog lists it under the CONTACT BREAKER AND IGNITION COIL figure, which tells us where it sits in the wiring diagram but not which specific machine it was fitted to.
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Our records show this part number appearing in catalog entries from 1963 to 1964, but we don't have a named model or engine family tied to it in what we have on file. If you're trying to match this to a bike, check the numbers stamped on your existing points unit or bring in your parts book and we'll confirm before you order.
The 4CA designation is Lucas's own type code for this points assembly. Beyond that, our information here is limited to the figure title and the part number itself, so treat any specific bike-model claim with caution until we've had a look at what you're working on.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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