| Diagram | Fig. 2 — CYLINDER AND CRANKSHAFT · ref 8 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Spark plug (Champion N4)
Champion N4 spark plug, catalog part 19-7616, used in the cylinder head ignition circuit.
19-7616 is a spark plug listed in the catalog as a Champion N4. It shows up in the cylinder and crankshaft figures as well as the cylinder barrel, exhaust pipes and valves figure, which puts it right in the engine's top-end ignition path where the plug threads into the head.
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The catalog record doesn't tie this specific plug to a named model, so we're not going to guess which machine it came off of. If you're cross-checking against your own parts book, match the Champion N4 designation and go from there.
Give us a call if you want us to confirm fitment before you order — better to check than to guess with something that has to seat and seal correctly in the head.
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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