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Old 06-22-2020, 07:29 PM   #1
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Join Date: Mar 2015
Location: Bozeman, MT
Posts: 5
Angry Sprinter SMB alternator failure

I have a 2016 SMB Sprinter buildout with a Nations secondary alternator charging the house batteries in addition to a couple of solar panels. In 40k miles, I've had three of these alternators fail due to a corroded power stud. In my experience this seems like a far to common issue. If anyone else is seeing this as well, please chime in, particularly if you have found a solution.

BTW I'm in Montana where we don't salt our roads.

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Old 06-23-2020, 08:09 PM   #2
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Join Date: Dec 2016
Location: Southern California
Posts: 105
What is the power stud that's corroding part of? The second alternator?

I would try a different brand if a few have failed this way.

Full time vanlifer in my SMB.
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Old 06-27-2020, 07:57 PM   #3
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Location: Beaverton, OR
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Have you tried coating it with dielectric grease. I believe the second alternator is mounted pretty low correct? Does your second alternator have an external regulator, are your house batteries lithium?

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