The vehicle : 1992 Isuzu Trooper - standard model.. i.e. manual crank windows, manual mirrors, no fog lights.

How do I tell if I have a 60 or 75 amp Alternator? I'm doing a bunch of work to one of my troopers. I yanked the Alt. out of it to clean it up before I put the truck back together. I just happened to have a brand new never used 75 amp alternator for my other trooper sitting in a box so I compared the two and they both look identical. However I was speculating that only the LS models with the power windows, fog lights, headlight wipers.etc. got the 75 amp Alternators and the rest of the non loaded Troopers got the 60 amp Alt. So yeah back to the original question, How do I tell the difference??

Thanks,

- Ryan

Does it have A/C? I know that in my old pickup that was the criteria. The non a/c got the 50amp and the a/c got the 60amp.

Richard <img src="/forums/images/graemlins/patriot.gif" alt="" />

WHATS THE PT NO ON THE TAG ON THE SIDE OF THE ALT. JERRY

Unfortunately the tag has long fallen off the Alt.

WITH THE TAGS MISSING , ABOUT THE ONLY WAY WOULD BE TO TAKE THE ALT APART AND GET THE NO,S FROM THE REGUALTOR, , BUT IF YOU ARE SURE OF THE 75 AMP , JUST BOLT IT ON, YOU ARE CORRECT IN THAT THE TROOPERS AND OR THE RODEOS THAT WERE BASICALLY STRIPPED DOWN OF THE ELECTRICAL GOODIES CAME WITH THE SMALL ALT OR RATHER LOWER OUTPUT , UNLESS IT WAS CHANGED SOMETIME IN IT,S LIFE AND GOT THE 75 AMP UNIT IN IT,S PLACE / JERRY