Alternator Swaps - Page 4

**dbbd1** · 11-14-2009, 03:20 PM

For those of you interested...

I was able to track down my stock alt size. '03 TJ with 4.0l. It has a 117a alternator in it, with the following designations: TN 121000-3821, 56041 864AB.

**07wurubi** · 11-15-2009, 01:36 AM

At least for a 2000 TJ, the factory part numbers for the stock alternators are as followed along with their AMP rating:

56041565AA 1 ER0 117 Amp

56041685AA 1 ER0 81 Amp

I have the 117A unit in mine and want to upgrade to 160A myself for winching reasons.

Beerman77 · 11-15-2009, 11:26 AM

I just ordered this one.....99-00 NEW JEEP CJ WRANGLER YJ HI OUTPUT ALTERNATOR 175A
175amps - $200 no core - NEW - Bolt in........

**dbbd1** · 11-15-2009, 10:39 PM

Quote:

Originally Posted by Beerman77

I just ordered this one.....99-00 NEW JEEP CJ WRANGLER YJ HI OUTPUT ALTERNATOR 175A
175amps - $200 no core - NEW - Bolt in........

Its interesting that they only give you a year warranty when you buy it from them on ebay but lifetime from their website.

N8Doggz · 11-17-2009, 04:44 PM

The difference in the 02 and older are the mounting bracket and location of the alt and plug. if you look its mounted lower and has different positions for the mount. On 03 and newer TJs its mounted higher up and has different mounting positions. The older model durango (98-99) with the V8 5.2-5.9L with ALL power package and AC has the same mounting locations for the newer 03-06 TJs. It puts out 160a max not idle.

Dflores · 11-21-2009, 08:34 PM

I just pulled the trigger on my 98 TJ with a 2.5L. I installed an alternator I bought from the classified section of this forum. I bought a Denso #5602 7913 out of a Jeep Grand Cherokee w/ a 5.9L. I changed the pulley from the 7 groove to a 6 groove and changed the plastic wire guard. I did not upgrade the alternator to battery wire. The only issue I had was getting the new alternator into position, I had to push it up from under the jeep, the factory clearances for the 90 amp did not allow the space for the larger 136 amp alternator.

I took my newly purchased alternator to Reily Zone to get it checked out prior to installation, just to make sure I hadn't purchased a dud.

Seems to work fine, my 4 KC light are significantly brighter or maybe I see what I wanted to see.

joeskyline06 · 12-08-2009, 04:40 PM

so would this work on an 02 TJ?. 4.0L

**Benderff** · 12-08-2009, 09:38 PM

If you read the thread you would find out.

Quote:

Originally Posted by joeskyline06

so would this work on an 02 TJ?. 4.0L

joeskyline06 · 12-08-2009, 10:45 PM

i mean i did, i just didnt want to spend the money for one and end up having to take it back so i wanted a stright anwser...sorry for asking a question

**crusher242** · 12-09-2009, 08:52 AM

Everyone get along now. Also,if your vehicle is not listed look at your connectors and go to the junk yard. You can always do your own research. Then post it upon here.

B_faster · 12-09-2009, 09:48 AM

So for us 03 and up guys, specifically 06, which seems to be different in the Autozone system what alternator options do we have. I found the 165 A unit from Load Boss, but it only states up to 05 model year.

RealPower3 · 01-02-2010, 08:05 PM

Thanks for the advice. The swap was easy. Oh by the way you can swap out the old pulley and install it on the new one. Its works Great!!!!!!

**NOBLACKTOP** · 01-02-2010, 09:24 PM

Quote:

Originally Posted by RealPower3

Thanks for the advice. The swap was easy. Oh by the way you can swap out the old pulley and install it on the new one. Its works Great!!!!!!

Which swap? Make/Model? More info please.

RealPower3 · 01-02-2010, 10:03 PM

1999 Jeep Wrangler 4.0 Liter. Swap it with a 2002 Dodge Durango 160 amp Alternator. I took of the pulley from the factory Jeep alternator and put it on the new alternator. The factory clip on my jeep fit perfect in the new alternator. I did have to use a step bit on the ring terminal to make it fit. Install went perfect.

**GREASEMONKEY** · 01-02-2010, 10:18 PM

Guy's, don't forget that with more amperage you need to increase the size of your primary wire to the battery. I assure you that the factory wire was barely enugh to handle the factory alternator output. I would use a minimum of 4GA, if not 2GA wire to be safe. I didn't notice it any where in the thread, so ignore me if I missed out on that!