OEM vs. Aftermarket Alternaters on a 99 TJ

[sargeek]

OK - So it seems that my OEM alternator is going out on my 99 Jeep TJ. The TJ had rear window deforster, AC and the other options, so I am sure that it has a relatively hight output alternator from the factory. No winch or dual batteries, but I have keep this thing for 13 years and 182K and don't mind spending some money on the TJ.

Any recomendatons for alternaters to install? OEM, NAPA, Mean Green other recomended brand.

 

[postalWagon]

as far as I can tell mean green is the best.

 

[1911]

I really like my Mean Green, but it is just a GM alternator re-wound for HO.

 

[Eaglefreek]

If you can be without your Jeep for a day or two. Take your alternator to a local rebuilder. They will typically do a far better job than any rebuiler that supplies alternators to part stores.

 

[GlennA]

If you can be without your Jeep for a day or two. Take your alternator to a local rebuilder. They will typically do a far better job than any rebuiler that supplies alternators to part stores.

X2

 

[Hawkz]

My local rebuilder keeps some in stock. I exchanged mine as core and got a new one right away. Or you can give them yours and wait if you prefer...

 

[Jim K in PA]

Do some googling to get specifics, but there is a higher output alternator that was used in the 2000-2006 Dodge Durango that was rated at 160A. It is a bolt in to the later (2003-up) TJ/LJ, but I don't know if it would fit the bracket of the earlier Jeeps.

However, taking your alternator to a local rebuilder and telling him you want it wound for more LOW RPM output could be just as effective as a larger alternator. Also, keep in mind that the output of any alternator is dependent on LOAD. If your system never pulls more than 80 amps, putting a 160A capable alternator is just for show, as it will never reach full capacity. However, if you are pulling 80 amps and your current alternator is maxed out at 90A, going with a larger unit will probably prolong the life of the unit by reducing the duty cycle.

Since yours lasted 13 years and 182k miles, chances are pretty good that you don't need an upgrade.

 

[sargeek]

Thanks for the thoughts. I Was hoping it would last a little longer, but it wanted to become a paper weight. Went with a reman
Factored unit.

 

[HillbillyfromAL]

Get a mean green they stand behind their products and there's not many that put out the amps they do.

 

[ReconH3]

Get a mean green they stand behind their products and there's not many that put out the amps they do.

What he said.


"Ex Umbris Venimus"

Sent from my iPhone

 

[I Leak Oil]

The original one lasted 13 years and 182K miles...what's the question again?????