I had one built to replace my 75A 3.0L unit that supposedly bench tested at 160A.... I haven't tested it myself to verify the output. The difference may be that I had mine wound as a new unit and not just rebuilt. It has a much heavier stator winding (with little room for cooling air flow) and it probably has a beefier rotor, voltage regulator and rectifier as well, because it's still working fine after 7000 miles.... it recharges a Group 27 95AH AGM battery with a huge charge acceptance rate like a champ. Unfortunately, the fellow who built it has vanished and as long as it's working I don't want to take it apart to see what's in it. <img src="/forums/images/graemlins/cyclops.gif" alt="" /> <img src="/forums/images/graemlins/shame.gif" alt="" />

Most alternator rebuilders replace only the parts necessary to make it work on the bench load test and if the parts aren't compatible you can blow the new one pretty quickly... as you found out.

Frank