Alternator availability for M1097A2 HMMWV. Will this fit? What fits?

[Blownaway]

I've already been searching threads but It's not clear what I need...I have a serpentine 4l80E HMMWV that I bought with the alternator missing. Will the one in the picture (From R1) fit with a pulley swap? What are all my possible options for my M1097A2?

 

[Blownaway]

Would an M1097A2 have a 200A Alternator already?

 

[Coug]

Would an M1097A2 have a 200A Alternator already?

all A2 trucks should have the 200 amp, unless they have the 400 amp. If there is a lift ring in the top of the alternator then it;s the 400, but 200 is MUCH more likely.

 

[Blownaway]

The hard part is that there's nothing there at all. Looking through other auction photos it sure looks like both V-Belt and Serp Belt HMMWV's typically have the same alternator, likely the 200A. (1097R1's and A2's)

 

[Coug]

V-belt trucks can have 60 amp, 100 amp, or 200 amp alternators I don't believe there are 400 amp ones, but there might be a few)
Serpentine belt trucks can have either 200 or 400 amp alternators.

1097R1 trucks can be either V belt or serpentine, usually depending on whether it's a 3 speed (V-belt) or 4 speed (serpentine) depending on what version the truck was before it went into the recapitalization program to become an "R1" variant.

If you don't have an alternator at all, then buy the 200 amp kit. 400 amp is massive overkill and more trouble than it's worth to work around inside the engine bay. Also way overkill for what you need, unless you're planning on running a welder straight from it.

Everything else will be the same between 200 and 400 other than mounting brackets and serpentine belt. 400 amp does have a second positive cable going to the starter.