Alternator Durability

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Mar 27, 2012 | 02:51 PM

MauleOne

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From: Sequim. WA

Alternator Durability

I have an E99 F350 PSD with 190K on it. I bought it used several years ago. I have been upgrading with my goal being reliability and an increase in power.

Now I am looking at the alternator and wondering how much longer it is going to last. I have no idea if it is original or what.

I am also wondering if a power upgrade on the alternator would be a good idea.

How long do these usually last and what might be available?

Thanks

Mar 27, 2012 | 03:09 PM

Kajtek1

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From: CA Bay Area

Alternator brushes last for 100k-200k depends how much power you use. Voltage regulators are cheap enough to replace if you are not sure about alternator age.
Ford alternators don't have good reliability records, what is another story. I suspect lot of alternators got replaced needing brushes only.

Mar 27, 2012 | 03:15 PM

MauleOne

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From: Sequim. WA

Alternator

How many amp are stock alternators?

I see a lot of after market units advertized at 200 amp.

Where is the voltage regulator located?

Thanks for response

Mar 27, 2012 | 03:47 PM

Kajtek1

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From: CA Bay Area

Mine is 120 amp and I think it is standard for SD. Can't imagine using more than that unless you have mobile office on the truck running coffee maker and microwave oven at the same time.
Voltage regulator is small part mounted on the alternator. Usually it is very easy replacement, but designs vary. With my experience I do it even without disconnecting the battery, but that is hardly advised.

Mar 27, 2012 | 08:50 PM

jh818

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From: Chino, California

Voltage regulator is typically attached to the back of the alternator.

Mar 27, 2012 | 11:15 PM

MauleOne

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From: Sequim. WA

Alternator

Thanks, I keep learning thanks to FTE

Mar 27, 2012 | 11:38 PM

dchamberlain

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From: Scio, OR

I believe you'll find that the voltage regulators are built into the alternators and are not generally serviceable separately. Some specialty alternator shops may be able to, but those are becoming more and more uncommon.