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PA Performance High Output Alternator - 170 Amp (99-04 GT)

Market Price $384.99 You Save 12% ($45.00)
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  • Item 95319
  • MPN# 2264HO

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Ship to: Ashburn - 20149
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    Features & Details

    • 6G Series Alternator - Small Case
    • 100% New Replacement
    • Includes Manufacturer One Year Warranty
    • High Output - Increases Charging Capacity
    • 90 Amps at Idle - 170 Amps at Maximum
    • Fits 1999 to 2004 GT Mustangs
    100% New. This 170 Amp Mustang 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 pulley. The 170 Amp alternator will increase the charging capacity at all RPM Ranges with no modifications required.

    More Power. The PA Performance Alternator produces 90+ amps at idle (2000 alternator shaft RPM), and 170+ amps at maximum (6000 alternator shaft RPM). It is required to upgrade the main power wire because this alternator has a higher output than stock. (See the drop down menu option above).

    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 altenator that includes a Limited One Year Warranty directly from PA Performance for peace of mind.

    Application. The PA Performance Alternator weighs in at 14.2 lbs and is a direct replacement with no mounting bracket modifications required to be installed in a 1999-2004 GT Mustang. The stock belt can be used on original equipment vehicles.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    CA Residents: Warning: California's Proposition 65

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

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    Questions & Answers (5)

    5 Top Rated Questions

    I broke 2 of the bolts that go from the bracket to the alternator, can you supply new bolts if I buy this unit?

    • Unfortunately, this alternator does not come with replacement bolts.

    Helpful (0)

    Besides upgrading the power wire, will this alternator require any tuning to be done?

    • The PA Performance High Output Alternator does not require a tune.

    Helpful (0)

    Can you run an electric water pump and under drive pulleys with this alternator or a 130 amp?

    • The use of underdrive pulleys will void the warranty on a PA Performance High Output Alternator. This Alternator will provide enough power to run your electric water pump.

    Helpful (0)

    How will installing a high-output alternator affect the performance of other related parts? Mach 1000 audio system, underdrive pulleys, etc?

    • With the PA Performance High Output Alternator - 170 Amp you may notice those electronic components performing better. For example your audio system may come through a little cleaner and your headlights and interior lights may brighten a bit. This will not have any affect on your under drive pulleys.

    Helpful (0)

    Would this alternator fit my 03 roush? can i buy a cobra alternator?

    • Yes, the PA Performance High Output Alternator - 170 Amp (99-04 GT) would work for your Roush, however the Cobra alternator would not work.

    Helpful (0)
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    Customer Reviews (10) Write a Review

    Overall Rating 5

    out of 5 stars

    • 5/5

      July 21, 2018

      Absolutely amazing.

      This alternator is amazing. When I turn on everything like the A/C, headlights, step on the brake, all at the same time, the battery gauge doesn't flinch. Its been about two months I think and its still going strong.


      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      September 05, 2017

      Very efficient and reliable with a decent price

      It was a replacement to a failed stock alternator. Very reliable, easy to fit as a replacement for the stock one. Higher amp's than stock. Don't go cheap on your car and get the premium power wire with it since the stock wire tends to fail when installing a higher output alternator.


      Year: 2003 Submodel: GT

      Helpful (4)

    • 5/5

      August 31, 2017


      I needed a hp alternator due to installing an amp and nee stereo system in my 04 GT. This solved my battery light problem. I bought the hp cable too. Glad I did!


      Year: 2004 Submodel: GT

      Helpful (4)

    • 5/5

      August 15, 2016

      Power for your stang

      This alternator really looks awesome under the hood. It seems to be working fine so far. I'm yet to install my 3000 watt sound system so that will be the ultimate test lol. 100 satisfied


      Year: 2001 Submodel: GT

      Helpful (5)

    • 5/5

      March 13, 2015

      Great product and fast shipping

      I was really surprised with how fast it got to my house. It was really quick. The alternator was packaged perfectly and it came in great condition. I just installed it with the power cord and everything works great. My intermittent battery light went away. I will be bring from American Muscle again.


      Year: 2003 Submodel: GT grovetown, GA

      Helpful (4)

    • 5/5

      December 19, 2014

      Great product with lifetime warranty

      Before this alternator i had battery light problems which slowly became worst until one day it came on at every rpm. This alternator corrected it & if i want to put a underdrive pulley on it i have the option. Bottom line AM had it when i needed it & shiped the item quick, i've had p.a performance parts before thAts why i trusted this.


      Year: 2004 Submodel: GT

      Helpful (5)

    • 5/5

      March 31, 2014

      Great product

      No problems with start up. I have after market radio and 350 watt amp. Could not be happier. American muscle has not disappointed me yet.


      Year: 2002 Submodel: GT New Jersey, USA

      Helpful (5)

    • 5/5

      January 18, 2013

      My 2000 Gt

      15 minutes of work swap my Stock alternator with this 170amp Performance alternator.. I definitely feel the difference in power, this alternator really helps all those performance upgrades under my hood and gives them the juice they need to perform..the only thing I regret is not installing this sooner, "Thanks American Muscle for your luv of Mustangs!."


      Year: 2000 Submodel: GT Brooklyn, NY, USA

      Helpful (5)

    • 5/5

      November 12, 2012

      Happy Happy Happy

      Factory alternator went out and after looking around I decided I could not go wrong with 170amps. It is a little more expensive and required a wire upgrade but I was tired of headlights dimming at idle and higher rpms. I also took the opportunity to swap pulleys. I have learned from past experiences that some underdrive pulleys worsen the problems of dim lights and voltage dummy lights coming on. No more problems! After an easy install I checked output at idle, mid, and high rpms. There was no voltage drop off at all. Overkill? Well maybe but it works. I didn’t want to have to upgrade twice and I won’t have to.


      Year: 2004 Submodel: GT Birmingham, AL

      Helpful (4)

    • 5/5

      July 26, 2012

      Excelent product!

      I just bought it, had te dealership install it and the car runs much better and the noice from the engine is gone. I was tired of hearing the noice coming out of the engine when I have my radio on and the tv at the same time. Just be carefull when you order the high capacity cables since the $59.99 one won't fit the Mustang 4.6L. It only fits the 5.0L. I had to return the cable and get the one that cost $39.99 and is only 30" long.


      Year: 2000 Submodel: GT Lakewood,California

      Helpful (8)

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