Farm Equipment - AC 200 - voltage regulator

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AC 200 - voltage regulator - "Where to buy?"

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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=208164
Printed Date: 13 Sep 2025 at 7:43am
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Topic: AC 200 - voltage regulator - "Where to buy?"

Posted By: rickannable
Subject: AC 200 - voltage regulator - "Where to buy?"
Date Posted: 12 Sep 2025 at 9:09pm

Hello folks,

Looking for any suggestions on where to buy a replacement voltage regulator for my AC200. I've tested the alternator by jumping the battery post to the F terminal and got full charge out of the alternator, so I'm pretty sure my non-charging issue is the VR.

There are quite a few places to buy a factory-type replacement. I also thought I saw a post somewhere saying that "solid-state" replacements are a better idea.

Any thoughts on whether you would go with a factory-type.... and where you would buy from?

Thank you in advance!

Replies:

Posted By: TedN
Date Posted: 12 Sep 2025 at 9:43pm

I replaced the regulator on my 190XT two years ago with a solid state one from Amazon, about $30. It had a Transpo label, seems to work so far. I don't know if you can find an original (non solid state) regulator anymore.

Ted

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190XTD seriesIII, 190XTD seriesI, maroon belly 7000, 190XTD series??? project(or maybe parts)

Posted By: JoeM(GA)
Date Posted: 12 Sep 2025 at 11:23pm

Talk with Steve at B and B, he sells this one -

https://www.bb-customcircuits.com/product-page/cni-1514a-15-heavy-duty-voltage-regulator-for-160-through-190xt-model-tractors" rel="nofollow - https://www.bb-customcircuits.com/product-page/cni-1514a-15-heavy-duty-voltage-regulator-for-160-through-190xt-model-tractors

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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB

Posted By: dkattau
Date Posted: 13 Sep 2025 at 5:41am

AGCO has them. Just got one for our 190XT.

Posted By: PaulB
Date Posted: 13 Sep 2025 at 6:29am

I have a couple NOS old style voltage regulators left for the DELCO alternators.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY