Of coarse there are the high dollar Mean Green, Power Master, etc. alternators, but the truth of the matter is you are looking at a very costly upgrade going that route. Also, the ECU on these Jeeps don't always take kindly to aftermarket alternators. The alternator on these year models of Jeeps is externally regulated by your ECU; this means that if you aren't running a stock OEM Jeep alternator, issues may arise with the ECU causing your service engine light to come on & for it to start throwing various codes because it does not sense that the alternator is there or if it is charging.
We also manufacture our own version of every OEM alternator to exact factory specs. The Buy Auto Parts brand alternators look, fit, and perform the same as the factory Jeep alternators. Because you are buying directly from the manufacturer, you are able to buy them at just a fraction of the price!