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Old 24-08-2007, 11:20   #1
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chad.lawie's Avatar

Join Date: Nov 2006
Location: Michigan
Boat: Lagoon 380 Owners Version
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Hey folks.
I've got a Motorola alternator, model number MR12N600

I've got no experience with alternators.

Question: Do I need a voltage regulator?

There wasn't one installed by the previous owner... but there was a lot that was left uninstalled by the previous owner.

Thanks for the help.
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Old 24-08-2007, 15:01   #2
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Yes you do. Based on the number it appears to be a 51 amp alternator. Not a big one but then I expect you knew that part already. Personally, I prefer external regulators as it makes it cheaper to replace the alternator.
Paul Blais
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