I have the factory alternator still on my 1991 Runner. My question is, what size of alternator is it or where on the alt. do I locate the amp size printed? I have ten lamps on my rig.
main head lamps
fog lamps
back up lamps
4 KC offroad lamps up top

So if someone knows what size ive got or even what size I should get could you tell me. Thanks, Blue

 

I believe the stock alternator is rated at 60 amps.

 

Ditto.

 

I just installed a Taurus fan, and the MR2 100 Amp alternator. The first thing I noticed is that my windows go up and down quicker, because of the additional current at idle. Very cheap, and easy to do. Read the link below:

http://www.off-road.com/toyota/tech/100alt/index.html

 

Thanks Rob!