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Old 18-08-2016, 01:38   #1
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Yanmar Alternator

Hello People,

What would the equivalant of a Yanmar altenator be for a YM30 Yanmar engine.

Best rgds
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Old 18-08-2016, 07:20   #2
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Re: Yanmar Alternator

I believe there are less than 1/2 a dozen "common" alternator frames that are used by companies. I believe the alternators that Yanmars use are Hitachi. If you contact an aftermarket alternator company with the criteria your alternator has, they can help you.
-How many mounting ears
-measurement between the ears.
-pulley diameter and single or double sheave.

Most likely you will want close to the same amperage. If you go too large, the belt may tend to slip easier.
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Old 18-08-2016, 13:29   #3
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Re: Yanmar Alternator

Moogli, Celestialsailor is correct. Contact a starter & alternator specialty shop. I just bought a replacement 80a alternator for my 4jh3e from one here in the SF Bay Area called ASC Alternator-Starter.
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Old 20-08-2016, 16:19   #4
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Re: Yanmar Alternator

If you want to duplicate the stock alternator, I have two that have never been used.

Not really sure what they are worth, but I'm sure we could work something out.
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