Ok guys just getting around to replace both alternators but finding that the 120 amp alternator part number 7C3Z-10346-CERM is unavailable ,the 200 amp 7C3Z-10346-EA is available all day long so I ordered it.
My question is there another alternator 120 amp or higher amp rated alternator I can substitute for the dual configuration?

 

Check WAI GLOBAL 8522N at RockAuto and use 292739446259187330 at checkout, it's 120amp made for dual alt system.



Alternators don't break easily curious why you need to change your alternators in the first place. If you run custom power hungry system you "upgrade" to high amp ones, not stock. Better yet, you have that money to spend you install a solar system, dirt cheap these days.

 

When it comes to electrical and electronics, there are rules one has to abide by.
If you want to start changing something, need to know how much power you require, is the wiring capable of handling it and ,you never get all you pit in out,there are certain losses you must take into consideration.
Need to know what you are planning to power.That means how much power it will consume. Total power required.
If the wiring was selected for one output, you need to know if it can handle the increased current without overheating and causing other problems.
Suggest you check with a good electrical shop before increasing anything from original design.

 

Gentlemen
Thank you for your knowledge and advise, I am just replacing what is currently installed,I was just trying to keep it all Ford but reading all responses it look like it will have to be aftermarket.
My 200amp alternator started on fire so that the reason to change both at the same time. Current mileage is 235k,so I think the 120 amp alternator is not far behind.
I ordered the truck with dual alternators the sales guy asked if I wanted dual alternators I asked how much he sai $125.00 I said I will take it.
It functioned as I thought it would as the 200 amp alternator started on fire I put the fire out and the 120 amp alternator is keeping the battery's charged and the truck runs just fine,so I want that same back up in place as we drive to Levering Michigan with the boat I don't worry about that aspect of being with out.
Thanks again fellas happy motoring
Regards Dale

 

Something you might consider, check around your area for a shop that rebuilds alternators. It will be just as good as new and a LOT less costly.

If you do not know the reason for the fire, they might be able to help you there.
Most times it winds up being overloaded.
If you want to, what were you running that might have had an excessive demand for longer than what the alt could handle.?

 

Its a stock 2008 F350 Super Duty 6.4 long Bed with no accessory's The boat when attached is the only other load,but the fire happened not towing anything.
Its a mystery to me also I am guessing old age on the alternator again the milage is 240k or better,I live in Florida so the AC is on all the time
Thanks again for the help

 

Until you, or your shop, find the cause of the fire, IT COULD HAPPEN AGAIN.
Alternators are generally sized with related wiring to handle power required and output.
Excessive loads over a long enough time, will produce overheating that can result in a fire.
Was there any type oil leak onto the alternator ?
Was the A/C system checked for any excessive load ?

 

Hanky
No fluids or oil leaking,it was the connector which actually caught on fire. will have the AC checked for excessive load,thanks
Regards Dale