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PA Performance 120 Amp Alternator (99-00 2.5L & 4.0L Jeep Wrangler TJ)

Item J102471
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Market Price $241.99 You Save 9% ($22.00)
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$219.99 (each)

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    Features & Details

    • 100% New Replacement
    • Includes Manufacturer One Year Warranty
    • High Output - Increases Charging Capacity
    • 60 Amps at Idle - 120 Amps at Maximum
    • Natural Cast Finish
    • Includes 6 Groove Serpentine Pulley
    • Fits 1999-2000 2.5L or 4.0L Jeep Wrangler TJ Models

    More Power. This 120 Amp PA Performance Jeep Alternator is 100% Brand New, not re-manufactured like other companies sell and is tested at the time of assembly. It comes complete with internal voltage regulator and 6 groove serpentine pulley. The 120 Amp alternator will increase the charging capacity at all RPM Ranges without additional upgrades or modification and produces 60+ amps at idle and 120+ amps at maximum .

    Peace of Mind. Why waste your time and money rebuilding your alternator again and again when it will only fail, replace it with a brand new high performance alternator that includes a Limited Lifetime Warranty directly from PA Performance for peace of mind.

    Application. The PA Performance Alternator is a direct replacement to be installed on 1999-2000 Jeep Wrangler TJ models equipped with a 2.5L or 4.0L engine.

    Fitment: 1999 Details

    MPN# 2224

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Alternator
    Installation Info
    Will it fit my Wrangler?

      Customer Photos

        Questions & Answers (3)

        3 Top Rated Questions

        I have a 97 2.5L and I'm considering upgrading to accommodate a winch and some off road lighting ... if I upgrade to this alternator, will I also need to get a different belt, or does it fit without needing to upgrade that too?

        • You would use the stock belt. We would recommend upgrading the wiring and the battery as well.

        Helpful (1)

        I have a 1994 4 cyl wrangler with a stock alternator. The front end has a 12K winch. Should I put on a larger alternator and if so what will I need to go with it, I am only running 2 extra fog lights. Thanks SidG

        • It would not be a bad idea to upgrade your alternator or use a dual battery set up with a winch! The PA Performance Alternator- 120A is a great upgrade option! 

        Helpful (1)

        I am in the process of upgrading my battery and alternator. If I go with a 120 amp alternator what gauge battery cable should I use? Should I go larger than 2 ga?

        • It is not necessary to change your cable with a 120 amp alternator, so you should be just fine with the stock one.

        Helpful (0)
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          Customer Reviews (7) Write a Review

          Overall Rating 4.9

          out of 5 stars

          • Fit 4.714286 4.7
          • Bang For Your Buck 4.857143 4.9

          • 5/5

            August 14, 2019

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Very Very Happy

            Perfect fit and great output in my 1997 TJ 4.0!!! Great up-grade over stock.


            Year: 1997Submodel: Wrangler

            Helpful (0)

          • 5/5

            August 28, 2018


            Arrived on time, perfect fit and works like a charm outstanding quality


            Year: 1999Submodel: Wrangler

            Helpful (12)

          • 5/5

            August 02, 2018

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Love it

            Love this altnator works amazing. Easy install starts my Jeep right up with no problem and runs my subwoofers two light bars rock lights and rear lights highly recommend


            Year: 1995Submodel: Wrangler

            Helpful (13)

          • 5/5

            June 29, 2018

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Works good

            Good product, fast shipping. Happy with the purchase.


            Year: 1997Submodel: Wrangler

            Helpful (13)

          • 5/5

            April 30, 2018

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Perfect for anyone with a Winch or Light bars

            This Alternator is perfect for anyone with light bars or running a aftermarket stereo system. The alternator puts out plenty of power to keep up and you never have to worry about your lights dimming.


            Year: 1994Submodel: Wrangler

            Helpful (13)

          • 5/5

            August 11, 2017

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Perfect fit...easy install!

            I am only a novice weekend mechanic, but was able to remove the 25-year-old original alternator on my 1992 Wrangler YJ and install this new alternator with ease in less than an hour. It runs fantastically, with 30 more power than the OEM.


            Year: 1992Submodel: Wrangler

            Helpful (15)

          • 4/5

            April 21, 2017

            Review from PA Performance 120 Amp Alternator (91-98 2.5L or 4.0L Jeep Wrangler YJ & TJ)

            Saved my Project

            The PA Performance Alternator saved my whole project from being scrapped. My alternator broke on me in the middle of the day and I needed one by the weekend or I would have to scrap the car. Now my Jeep is running perfectly and has never been better! Highly recommend this product


            Year: 1994Submodel: Wrangler

            Helpful (15)

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