UPDATE: hi-amp alternater swap

**sduncan** · 12-06-2009, 08:15 PM

Today my Dad and I swapped alternators on our TJs. There have been several threads lately about this but there was a bit of confusion on the earlier models. We both used Duralast alternators that we bought at Autozone. They easily bolted on with no fitment issues.

For my 98 w/ 4.0 : Autozone part #13387 136amp, is a DIRECT FIT. No changes are needed. This is an option for 1998 Dodge truck/Durango w/ 5.9 V8. Price was $147.00

For A 2003 w/ 4.0 : Autozone part #12328 160amp, is a DIRECT FIT. No changes are needed. This is for a 2004 Dodge Durango w/ 4.7 V8. Price was $121.00.

As I mentioned, for a '98 and an '03, these were direct fits and a great upgrade for the money spent.

**Unlimited04** · 12-06-2009, 08:20 PM

o0o good info

B_faster · 12-06-2009, 08:32 PM

So what would fit the 06? Is it the same as the 03? What is the output of the stock unit?

Pipedrummer · 12-07-2009, 03:33 PM

My '04 4.0 has a 117amp stock alternator. I'd imagine its the same for the '06 if you have the same engine, not sure though.

SkylinesSuck · 12-07-2009, 03:59 PM

Just to be certain, they wouldn't have been interchangeable, right? I mean, they looked different and you couldn't have put the 160amp on the '98 TJ, right?

**Best4x4** · 12-07-2009, 08:05 PM

03-06 4.0L Wrangler's should have the exact same setup. I'll probably being doing this before the end of the year myself. Just not a big fan of Auto-Zone's Duralast aka Duradead line of alternators/batteries. It does have a lifetime warranty though vs my stock unit lol.

**JeepRocks86** · 12-07-2009, 08:09 PM

good to hear.

Is the overall size of the alternators any larger than the stock TJ's?

Pipedrummer · 12-08-2009, 05:10 PM

Quote:

Originally Posted by sduncan

Today my Dad and I swapped alternators on our TJs. There have been several threads lately about this but there was a bit of confusion on the earlier models. We both used Duralast alternators that we bought at Autozone. They easily bolted on with no fitment issues.

For my 98 w/ 4.0 : Autozone part #13387 136amp, is a DIRECT FIT. No changes are needed. This is an option for 1998 Dodge truck/Durango w/ 5.9 V8. Price was $147.00

For A 2003 w/ 4.0 : Autozone part #12328 160amp, is a DIRECT FIT. No changes are needed. This is for a 2004 Dodge Durango w/ 4.7 V8. Price was $121.00.

As I mentioned, for a '98 and an '03, these were direct fits and a great upgrade for the money spent.

Just for clarification, were those prices for alternators bought new or rebuilt?

fishinjeeper · 12-08-2009, 06:10 PM

i would guess rebuilt. seems pretty cheap to be new. are they both the same mounts? as in interchangeable? i have an 01 and dont know the year i will be needing

**Best4x4** · 12-08-2009, 06:48 PM

It should be 97-02 and 03-06 for part compatibility.

BWFBezerk · 12-08-2009, 06:59 PM

New and rebuilt doesn't matter. On the rebuilt ones only the casing is reused, everything on the inside is all brand new. My question is will these fit the 4.0 and 2.4, or just the 4.0? I have an '04 SE and it has a 136 amp on it and it's starting to make noise, the AutoZone replacement is $180, can I get that 160 amp and put it in?

Pipedrummer · 12-08-2009, 09:59 PM

Quote:

Originally Posted by BWFBezerk

New and rebuilt doesn't matter. On the rebuilt ones only the casing is reused, everything on the inside is all brand new. My question is will these fit the 4.0 and 2.4, or just the 4.0? I have an '04 SE and it has a 136 amp on it and it's starting to make noise, the AutoZone replacement is $180, can I get that 160 amp and put it in?

Interesting, mine is an '04 sport I-6 and only 117v. I think the older engines (maybe 02 and earlier) have a diff mounting location (somewhere near the bottom). My location is top left, looking at the engine from the front of the jeep. Where is yours on the '04 2.4?

BWFBezerk · 12-08-2009, 10:49 PM

Quote:

Originally Posted by Pipedrummer

Interesting, mine is an '04 sport I-6 and only 117v. I think the older engines (maybe 02 and earlier) have a diff mounting location (somewhere near the bottom). My location is top left, looking at the engine from the front of the jeep. Where is yours on the '04 2.4?

While standing in front of the Jeep, it's on the top right, extremely easy to get to. I was comparing my part number and the ones for the upgrade and the mounting holes and connector are the same, just that the connector is on the opposite side of the alt. I'm thinking if I can relocate the 2 plug connector then I can use the 160 amp one.

**dbbd1** · 01-11-2010, 07:34 PM

Quote:

Originally Posted by sduncan

Today my Dad and I swapped alternators on our TJs. There have been several threads lately about this but there was a bit of confusion on the earlier models. We both used Duralast alternators that we bought at Autozone. They easily bolted on with no fitment issues.

For my 98 w/ 4.0 : Autozone part #13387 136amp, is a DIRECT FIT. No changes are needed. This is an option for 1998 Dodge truck/Durango w/ 5.9 V8. Price was $147.00

For A 2003 w/ 4.0 : Autozone part #12328 160amp, is a DIRECT FIT. No changes are needed. This is for a 2004 Dodge Durango w/ 4.7 V8. Price was $121.00.

As I mentioned, for a '98 and an '03, these were direct fits and a great upgrade for the money spent.

Do not know how I missed your post but yeah, I had one ordered from advance auto parts, it came damaged. Now, they say they do now have anymore. So, I ordered from autozone. No fitment issues (for the '03)? Did you cut off that sticking up nub thing?

Thanks

joeskyline06 · 01-11-2010, 08:15 PM

maybe a dumb question...but did you notice your lights being any brighter?