HZJ105 alternator upgrade

bosch make a 120amp alternator that will fit but you will have to make a few modifications

I'd stick with the original factory alternator. Chances are its just worn brushes and they are relatively cheap to replace. Just need to find an autoelectrician who still remembers how to take one apart.

Aftermarket alternators are a bit hit and miss. Heard a few complaints about some of the cheapies not going the distance.

Out of interest, Toyota are now selling remanufactured factory alternators at about half new price. Contact your dealer's spare parts dept for details.

Toyota are now doing a remanufactured part cheaper than the cost of the new one and you get the genuine warrenty too, they put a suffix on the genuine part number of 84. To look at one they would pass of as new, give them a call and see.
Worth the call.
Jethro

Thanks, I'll chase up the Toyota replacement option.