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PA Performance High Output Alternator - 200 Amp (05-08 GT)

Market Price $395.99 You Save 12% ($46.00)
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  • Item 95320
  • MPN# 2158WHO

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Features, Video & Details

  • 6G Series Alternator
  • 100% New Replacement
  • Includes Manufacturer One Year Warranty
  • High Output - Increases Charging Capacity
  • 100 Amps at Idle - 200 Amps at Maximum
  • Fits 2005 to 2008 GT Mustangs

Review & Installation Video

Review & Install Video

Hey, Stephanie here breaking down the PA-Performance High Output Alternator for 2005-2008 Mustang GTs. PA-Performance is widely know for their high performance charging and starting systems. They have specialized in high output alternators for the Mustang for nearly a decade. And all of their units are 100% brand new and fully tested during production, unlike some other alternator options that are out there. Now this is a 200 amp 6G series alternator that comes complete with an internal voltage regulator and a pulley that allows you to reuse your factory belt. Although, I would recommend replacing your belt while you're in the area, since you're going to be replacing your alternator anyway. This is a direct replacement that increases the charging capacity at all rpm ranges without any modification necessary. Providing 100 amps of idle and 200 amps at max. Now I will say because this unit provides higher than stock output, you will need to upgrade your main power wire. This is because the stock OE power wire was not designed to handle the increase load that this high amp alternator provides. Luckily PA-Performance offers this upgrade and it's available in the drop-down menu on the product page. If you're not already there just click the link below and see what I'm talking about. For installation you can expect to spend about two hours tackling the job with the use of basic hand tools. Now because this is a direct replacement you do not have to modify the mounting bracket. But like I mentioned before, I would recommend installing a new belt while you're installing your new alternator. And if you have any questions about the install or the alternator, you can always reach out to a Mustang expert by phone or email at anytime. So if your alternator has failed or is on its way out, then be sure to check out this high output 100% brand new replacement from PA-Performance offered here at

100% New. This 200 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 200 Amp alternator will increase the charging capacity at all RPM Ranges with no modifications required.

More Power. The PA Performance Alternator produces 100+ amps at idle (2000 alternator shaft RPM), and 200+ 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 16.2 lbs and is a direct replacement with no mounting bracket modifications required to be installed in a 2005-2008 GT Mustang. The stock belt can be used on original equipment vehicles.

Fitment: 2005 2006 2007 2008 Details

What's in the Box
  • (1) Alternator
Installation Info
Will it fit my Mustang?
  • Bullitt - 08
  • GT - 05, 06, 07, 08

People Who Bought This Item Also Bought

Most Helpful Reviews

As easy as it looks!

Looking to replace my failing alternator. Did some research about a replacement, found a few reviews about this 200 amp on the Internet. I have to agree, it is a perfect replacement. Easy install, fair ...

Read More
Helpful (4)

Must have for any speaker lover!

I have always had problems with my battery-power being low. My voltage would dip well below 12v at red lights. I know this was due to my stereo system... But I love my music and BASS! Once I installed ...

Read More
Helpful (2)

Overall Rating 4.4 out of 5 stars
Read All 20 Reviews

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1 Questions / 1 Answers

Ask a Question

Will This fit an 09 mustang Gt? I have an on mustang GT/CS.


  • Hey Fancy, Unfortunately this alternator will not fit your 09 GT/CS. For 2009-2010 mustangs Ford had produced a different alternator for with separate mounting as well as functionality


Helpful (0)

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Customer Reviews (20) Write a Review

Overall Rating 4.4

out of 5 stars

  • 5/5

    November 08, 2012

    As easy as it looks!

    Looking to replace my failing alternator. Did some research about a replacement, found a few reviews about this 200 amp on the Internet. I have to agree, it is a perfect replacement. Easy install, fair price. Took me less than two hours with just a couple hand tools... Car runs great and most importantly the check electrical system light is off. Be sure to get the upgraded wire, size does matter when your moving 200 amps across your engine bay! If your looking for great quality for a fair price, this is for you!!


    Year: 2007 Submodel: GT Sacramento, CA, USA

    Helpful (4)

  • 1/5

    October 27, 2015

    16 months old, voltage varies from 12 to 16.4v wildly and hangs there.

    Purchased to replace a stock alternator with a noisy bearing and owrked perfectly for about 14 months then started to throw a battery light and "check charging system". At idle with all accessories off it will vary it output voltage from 12 (the battery probably prevents a lower reading) up to 16.4v. I drive my car in Dallas rush hour traffic to and from work not as a track car. Cannot recommend this product now that I have to pay for a replacement I will be going back to Motorcraft.


    Year: 2007 Submodel: GT garland, TX

    Helpful (2)

  • 4/5

    February 20, 2015

    Great Product

    I have noticed an increase in power to my stereo system. Did not cure my light dimming and acceleration pulsation problem when the bass hits, but it has improved both overall. Now all that is to be said is how long it will last. Installation wasn't bad. Took about an hour. Just make sure to disconnect the battery! Either way, I know American Muscle will take care of me if anything goes wrong!


    Year: 2005 Submodel: GT Sacramento, CA

    Helpful (2)

  • 5/5

    May 17, 2013

    Must have for any speaker lover!

    I have always had problems with my battery-power being low. My voltage would dip well below 12v at red lights. I know this was due to my stereo system... But I love my music and BASS! Once I installed this alternator all my problems went away. Now I can push my Kicker L5s the way they were intended! Also my car seems to have a lil more power now that its not starving for juice. Installation was some what easy. The only tricky part well at least for me was one of my Saleen pullies was getting in the way of removing the bolts on the bottom. Otherwise the alternator was a perfect fit. I wish I had bought it sooner!


    Year: 2005 Submodel: Other Austin, TX, USA

    Helpful (2)

  • 5/5

    May 17, 2013

    simply awesome

    This is a must have if you have or want under drive pulleys or a serious sound system. Wished it came in black though.


    Year: 2005 Submodel: GT TN

    Helpful (2)

  • 5/5

    May 30, 2012

    Great product

    Alternator deliverys great power and provides the power to run my components.


    Year: 2006 Submodel: GT Abilene, TX, USA

    Helpful (2)

  • 5/5

    May 22, 2012

    Great Alternator

    Although a bit pricey its worth it if you are pushing some serious sound. Im pushing over 2100watts with two yellow tops and its great insurance to do this upgrade. The packaging was rahter lacking with only one layer of bubble wrap but it was undamaged unlike some of the other stories i have heard (with American Muscle you can guarantee excellent customer service on getting it replaced if it is damaged anyways). It bolts right in with no problems...dont waste your money by paying someone to do it, just download the install instructions and youtube it! Its about as easy as installing a new throttle body or cold air intake. Dont forget to upgrade the power wire, thats a direst swap and pretty brainless procedure as well.


    Year: 2006 Submodel: GT Hawaii

    Helpful (2)

  • 5/5

    August 15, 2017

    Worth every penny

    This PA Performance High Output Alternator by far surpasses my stock alternators performance. No more dimming lights and absolutely no more worrying if my alternator is going to provide enough amps.


    Year: 2007 Submodel: GT

    Helpful (1)

  • 1/5

    July 11, 2017

    It broke 4 days after I bought it lol

    Like my title says, I had this alternator on my car for 4 days and no more than 150 miles before it decided it wanted to eat itself. Some of the fins on the internal "fan" disappeared and others decided they wanted to become better friends with the inside of the case of the alternator. Thankfully AM came through with an RMA. Hopefully the second one doesn't copy the first one.


    Year: 2003 Submodel: Cobra

    Helpful (1)

  • 5/5

    October 30, 2016

    PA Performance Alternator - 200 Amp (05-08 GT)

    had unit installed , all is well 780 amp cc battery great combo. I have 800 watts of amplification in my stereo plus MSD coil packs and everything works great. Gerald


    Year: 2008 Submodel: GT

    Helpful (1)

  • 5/5

    January 10, 2016

    No TVS install option?

    Sent back to PA to have the front cover swapped for TVS install option (No charge), AM should have an option for this like PA does!! Kevin (PA Performance) has a quick turn around and always answered phone. Own two units, no issues with them.


    Helpful (1)

  • 5/5

    October 30, 2014

    Just wow

    Had this installed for 90 dollars and my subs are crazy my amps are unrestricted and they are really pushing now i cannot thank pa performance and american muscle enough.


    Year: 2008 Submodel: GT Colorado Springs, CO, USA

    Helpful (1)

  • 5/5

    February 15, 2013

    PA 200a alternator

    simple to install, and has worked flawlessly the past 9k miles.


    Year: 2007 Submodel: GT Santa Rosa, CA, USA

    Helpful (1)

  • 5/5

    June 29, 2012

    Finally a Reliable Alternator!!

    Stock alternator failed around 50,000 miles and replaced with refurb from NAPA had 2 fail on me, one overcharged and exploded my $400 lithium battery! Bought this alternator and the upgrade wiring kit, install was a breeze and can even feel a lot smoother throttle response, lights are brighter and subs pound great!


    Year: 2008 Submodel: GT Florida

    Helpful (1)

  • 5/5

    April 27, 2012

    this alternator is a must have and blows your stock alternator out of the water

    Before I bought the 200 amp alternator from American Muscle I ran threw two alternators from AutoZone that kept my check charging system light on all the time before I hit the gas. It wouldn't keep up with my advanced music system and often came on when I turned on the air. Thanks to American Muscle no more check charging system light and my car has more power. This is a highly recommended product and thanks to American Muscle for fixing the problem I spent so much money trying to find.


    Year: 2006 Submodel: GT Tulsa ok

    Helpful (1)

  • 5/5

    July 18, 2017

    Good Power

    Had a "Charging System" light come up on my display and wanted something better than the standard OEM. I installed the PA Performance High Output Alternator 200 Amp. Warning light off, no problems since.


    Year: 2007 Submodel: GT

    Helpful (0)

  • 5/5

    June 29, 2017


    Great power product don't have to charge my car if I don't start it in a couple of days . Gives it a bit of a wine while driving


    Year: 2006 Submodel: GT

    Helpful (0)

  • 3/5

    June 07, 2017

    Slight modifications needed

    Pulled the old one out, bought the new upgraded wire as suggested, and could not attach it as it was, the cable has a connector on the end which needed to be ground down to fit. Once ground down it fit appropriately.


    Year: 2008 Submodel: GT

    Helpful (0)

  • 5/5

    August 25, 2016


    Like many 2005-2008 Mustang owners I had problems with the electrical system warning and a repeatedly dying battery. My ten year old FOMOCO alternator finally gave up the ghost and this 200Amp Alternator was THE solution! The price was steep but I spare no expense for my ride! I definitely without a doubt see an increase in power and vitality in my Mustang and I'm very pleased with that. I absolutely recommend!


    Year: 2006 Submodel: GT

    Helpful (0)

  • 5/5

    July 05, 2014

    Great Product!

    I needed another alternator because my 07 mustang gt had a check charging system with a battery light that was on all the time. It also had a code which was P0622. I was doing a lot of reading that people bought stock alternators for their mustang and they kept dying on them so they bought this higher amp alt and it fixed their problem. I went and bought this alt to go ahead and get this check charging system fixed. When i installed it all i did was disconnect throttle body without disconnecting the electical connectors on the throttle body and then took out the backet securing the alt in and the two bolts on the bottom of the alt. I also bought the performance wire that is a 4 guage wire. All i did was hook up the wire to the alt along with the stock cable and ran the other end to the positive side of the battery. Also make sure to disconnect the battery first before you do anything. This is a great product and i highly recommend this to anyone that has this check charging system light on. Since i installed this alt everything is running great with no problems.


    Year: 2007 Submodel: GT Wilson,NC

    Helpful (0)

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