What is largest Alternator installed?
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Post Fiend
Joined: Jul 2005
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What is largest Alternator installed?
Can anyone tell me what are the largest alternators installed on a stock 6.0 that will fit (without major rework)?
Is there a 200+ amp alternator that anyone would recommend?
Is there a 200+ amp alternator that anyone would recommend?
Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
I'm not sure why you'd need a 200 amp alternator, but there is a 6G(?) frame alternator available with very high amperage. I don't have the weblink handy since I reloaded windows, but if you do a search there is a rebuilder that builds them. The 6G is a bigger frame but is a direct bolt-on. I'm running a 135 on my truck and the fit was perfect.
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Post Fiend
Joined: Jul 2005
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Well, I have a gimpy 110 amp alternator that just died...
So why throw in another one?
BTW, took a look at the 110amp job.. it is a joke!
Cheapo components, light, small, and clearly not commercial grade.
So why throw in another one?
BTW, took a look at the 110amp job.. it is a joke!
Cheapo components, light, small, and clearly not commercial grade.
Junior User
Joined: Apr 2010
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Quick search turned this one up:
TAD High Amp Ford Diesel Alternator- Nations High Amp Alternators
275 amps max, 190 amps at idle. Says it's a direct bolt OEM replacement. This is a beefcake!
Jason
TAD High Amp Ford Diesel Alternator- Nations High Amp Alternators
275 amps max, 190 amps at idle. Says it's a direct bolt OEM replacement. This is a beefcake!
Jason
Elder User
Joined: Mar 2005
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From: Denison, Tx
Cargo Master
Joined: May 2002
Posts: 3,271
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From: Gulf Coast, FL
Why the need for such a high alternator? The Snowplow package included a 140amp if I recall correctly. Besides there's cheaper ways to get more out the alt than going SO large. The only time you get that kind of output is when the truck is running at higher RPMs.
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Post Fiend
Joined: Jul 2005
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I was hoping to fit in a very large alternator so that it can power accessories without changing over to a dual alternator setup.
Right now, the big issue is the small 3G case form factor is probably the only thing that fits there.
So it looks like unless I got a custom 6G with the small case bolt pattern, I am high and dry.
The 120amp replacement alternator in it lasted less than 1 year.
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Post Fiend
Joined: Jul 2005
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Both idle and driving.
A) Hotel load
A set of "house" batteries (in addition to the vehicle pair) roughly estimated to be 200AH that needs to be charged up while vehicle is at highway speeds.
House batteries power appliances, etc. while vehicle is "power off".
That is, roughly 2X the battery capacity of a standard 2 battery vehicle.
Reasonable assumption is the house batteries will be 50% depleted after one night of use and need to be charged on a run of 2 hrs at highway speeds / rpm (e.g. 1,500rpm)
That is in addition to whatever charging need to be done for the car batteries.
B) Additional Load
In addition to the normal load of the van, technically, there is daytime running lights, which increase the load by about 100w.
Accessory load estimated to be additional 200 watt while running (computers, audio, etc.)
Plus charging of batteries in (A).
Am I really looking at dual alternators?
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Post Fiend
Joined: Jul 2005
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Alright...
A 140a alternator went in (to get truck moving again).
That is the biggest commonly available alternator on 2 or 3 days notice.
I am going to be researching the plus and minuses of dual alternation conversion, etc.
Thanks to everyone.
A 140a alternator went in (to get truck moving again).
That is the biggest commonly available alternator on 2 or 3 days notice.
I am going to be researching the plus and minuses of dual alternation conversion, etc.
Thanks to everyone.
Post Fiend
Joined: Nov 2006
Posts: 6,648
Likes: 1
From: CT
Here is a great thread about alternators.
Need a high amp alternator vender - TheDieselGarage.com
I got a 200 amp large 6G HD unit and love it
1999- Ford 7.3L, 6.0L, 6.4L, 6.7L Power Stroke Diesel Heavy Duty 6G Series 200 Amp Alternator Upgrade
You will also need to upgrade the wiring.
Need a high amp alternator vender - TheDieselGarage.com
I got a 200 amp large 6G HD unit and love it
1999- Ford 7.3L, 6.0L, 6.4L, 6.7L Power Stroke Diesel Heavy Duty 6G Series 200 Amp Alternator Upgrade
You will also need to upgrade the wiring.