| Listed in parts books | Not catalogued by year yet |
LUCAS VOLTAGE REGULATOR
A Lucas voltage regulator, listed elsewhere as a 6 volt unit, for keeping the charging system's output in check.
Part number 37221 is a Lucas voltage regulator. It's the electrical component that keeps the charging system's output in check so the battery doesn't get overcharged or left undercharged as engine speed and electrical load change.
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Our records on this one are brief, and we don't have figure-title or model-year context tying it to a specific bike, so we can't tell you the exact fitment off our own catalog data alone. What we can say is that it's a Lucas-branded regulator, and other references list it as a 6 volt unit.
If you're trying to match this to your bike's charging system, give us a call with your frame number or current part markings and we'll confirm fitment before you order.
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