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scot1337
Senior Member

119 Posts
Posted - 06/01/2021 :  10:07:45 AM  Show Profile  Reply with Quote
We have 15 cutaway buses that are on a 2009 Express 3500 Chassis and run a 6.6L Duramax. They run a Penntex PX4VHP-240A alternator and PX600 external regulator. Penntex, I guess, has gone out of business and the regulators are no longer available. I am having trouble either finding a regulator that will work or an internally regulated alternator that will fit. Has anyone else ran into this and if so, what have you come up with? I don't want something as simple as a regulator to down one of my buses!

willism
Advanced Member

United States
250 Posts
Posted - 06/01/2021 :  10:28:36 AM  Show Profile  Visit willism's Homepage  Reply with Quote
Yes ran into this about 2 months ago the 500 will work cause no one has a 600 that i could find.
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scot1337
Senior Member

119 Posts
Posted - 06/01/2021 :  11:35:39 AM  Show Profile  Reply with Quote
quote:
Originally posted by willism

Yes ran into this about 2 months ago the 500 will work cause no one has a 600 that i could find.

When you run the 5000, does the check charging system display show up? What about a check engine light?
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40ngone
Senior Member

USA
166 Posts
Posted - 06/01/2021 :  8:28:20 PM  Show Profile  Reply with Quote
We run the Pentex on the 6.0 gas versions. Ours were set up so you could always go back to the original factory alternator setup. The alt plug was left in the factory location. I know it is not as many amps, but it is an option.
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willism
Advanced Member

United States
250 Posts
Posted - 06/02/2021 :  09:13:45 AM  Show Profile  Visit willism's Homepage  Reply with Quote
No check charging or check engine light came on for me after I switched it out.
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scot1337
Senior Member

119 Posts
Posted - 06/03/2021 :  07:10:16 AM  Show Profile  Reply with Quote
quote:
Originally posted by willism

No check charging or check engine light came on for me after I switched it out.

That's interesting, what vehicles are you running those on?
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willism
Advanced Member

United States
250 Posts
Posted - 06/03/2021 :  08:17:50 AM  Show Profile  Visit willism's Homepage  Reply with Quote
chevy 4500's with collins/BB bodys
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