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View Full Version : Alternators????


jeepxj95
10-30-2011, 12:40 AM
ok i know the 360 ci zjs will fit with some mod to the brackets. but my ? is will the newer xjs like 99 ish with the 124 amp alt be a bolt on upgrade to my 95????
bigjim350
10-30-2011, 12:42 AM
I think the plugs on the back of the alt. are different. May be able to splice them onto your wiring though.
jeepxj95
10-30-2011, 12:55 AM
k. thanks jim. ??? anyone got the 124 amp option on a 97 + xj???? and if so can u post a picture of the back plz
4.3LXJ
10-30-2011, 01:21 PM
Why don't you use the ZJ 136 A off the 4.0 engine. My understanding is it is a direct bolt in.
dagr8tim
10-30-2011, 06:22 PM
I was under the impression that either the bracket or the alternator needed some grinding to fit the 136 amp. But really is 12 amps really worth all the effort?
4.3LXJ
10-30-2011, 07:43 PM
I guess it is up to the user. The 136 is a popular upgrade and I don't really know anything about the later 125 amp
dagr8tim
10-30-2011, 07:48 PM
I guess it is up to the user. The 136 is a popular upgrade and I don't really know anything about the later 125 amp

I can see bumping up from the 90A that the older XJ's had. It just doesn't seem like much of a bump and alot of work for roughly 10 amps.

Alternators like most things wear and tend to stop putting out their rated amounts as they get old. Just replacing it with an OEM may be the ticket.
jeepxj95
10-31-2011, 11:26 PM
4.3XJ i just thought it would be a bolt on item since the new xjs have them that and i like keeping things xj
4.3LXJ
10-31-2011, 11:34 PM
I don't know one way or another really. But I lean towards the idea that it may not. Lots of changes made after 01
jeepxj95
11-01-2011, 12:01 AM
true i was just asking if any1 had a 97 to 01 xj with one
bigjim350
11-01-2011, 12:35 AM
Well if it is different, and im not 100% sure it is, this pic shows it. The one on the right is what you have, which has the two posts where the wires bolt on. The one on the rights has a plug instead. So all you would have to do is splice a plug onto your two wires.

Disclamer: Not my pic
http://i11.photobucket.com/albums/a174/GogglesPizano/CIMG0234.jpg
jeepxj95
11-03-2011, 12:40 AM
yeah the connetrors diffrent
LizardRunner
11-03-2011, 11:15 AM
I tried for the 136A this year when my old original 90 crapped. It didn't fit just bolt on, so I ended up with a new 90, it fried so the alternator shop did a rewind on it and I have a good 100 in a 90 case for now. I still want the 136 and will get one after I get a spare bracket to do the grinding on to get it to fit.
89WhiteXJ
11-12-2011, 10:19 PM
I put one of the 136s on my Renix Jeep. I had to get the newer brackets and grind it all down. I also had to put in an external voltage regulator. I got it all to work. The install of the 136 is easy. I would go that route if you can and just change the connections out.
Olie's87XJ
11-21-2011, 07:17 PM
I put one of the 136s on my Renix Jeep. I had to get the newer brackets and grind it all down. I also had to put in an external voltage regulator. I got it all to work. The install of the 136 is easy. I would go that route if you can and just change the connections out.

write up please!!!:popcorn:
WyoXJ
11-21-2011, 08:00 PM
:pray:X2
89WhiteXJ
11-28-2011, 02:36 PM
Not exactly a write up but its what I had to do.

http://www.cherokeetech.com/VBull/showthread.php?176-Alternator-upgrade-problem/page4
uberxj92
12-29-2011, 04:20 PM
I put one of the 136s on my Renix Jeep. I had to get the newer brackets and grind it all down. I also had to put in an external voltage regulator. I got it all to work. The install of the 136 is easy. I would go that route if you can and just change the connections out.

may i ask why you went with the 136 on the renix? why didnt you just go to a stronger gm alternator with little to no grinding & no exteranl wiring to change & you could've went up to 190amp then?