200tdi Alternator Upgrade?

First things first - I've done a search! Didn't find much of any use though.

I have a Discovery 200tdi in my Ninety. I believe the alternator is a 65A unit (A127?)

I would like to fit a 100A unit, but there appears to be conflicting views on what will fit. 100A alternators were fitted to later 200tdi and 300tdi engines I believe? But I'm not able to determine whether I can buy any 200/300tdi 100A alternator and fit it directly to my engine.

I'm not worried if the connectors are different - I can handle that. But I don't want to have to make up spacers, new brackets, etc. so it needs to just bolt on.

Anyone able to genuinely confirm what will fit and what will not?

Thanks in advance,
Ian.

they are 65amp in both def and disco are you sure single v belt is up to much more ,3oo tdis run 100 amp but they run a polyvee belt

Hmmmm.... I'm sure I've seen discussions on fitting 100A alternators to earlier engines. I guess it's going to be on the limit with the V belt - I'll make sure to carry a few spares!