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SR Performance Alternator - 130 Amp (99-04 GT)

Item 100609
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    Features, Video & Details

    • 6G Series Alternator
    • 100% New! - Never Rebuilt
    • Direct Fit Replacement
    • 130 Advertised Amperage
    • 12 Volt Compatibility
    • Fits 1999 to 2004 GT Mustangs

    Review & Installation Video

    Review & Install Video

    100% New. This SR Performance 130 Amp Mustang Alternator is 100% brand new, not re-manufactured like other companies sell and is fully tested at the time of assembly. It comes complete with internal voltage regulator and 6 groove pulley. The 130 Amp alternator will increase the charging capacity at all RPM Ranges with no modifications required.

    More Power. The SR Performance Alternator produces 65 amps at idle (1750 alternator shaft RPM), and 130 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 from SR Performance for peace of mind.

    Application. The SR Performance 6G Series Alternator is a direct fit 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.

    SR Performance

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    MPN# 100609

    CA Residents: WARNING: Cancer and Reproductive Harm -

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

      Customer Photos (45) Submit Your Photo

      View All 45 Photos

        Questions & Answers (13)

        5 Top Rated Questions

        How about warranty?

        • The SR Performance Alternator would not have a warranty on this product. However, if you have any issues please give us a call in!

        Helpful (9)

        Will this amp be able to supply enough power to keep up with the Mach 1000 sound system in my 2003 gt?

        • The SR Performance Alternator will output a maximum of 130 amps, 20 amps more than the OEM Alternator's 110 amp maximum output. This will be more than enough to keep up with the Mach1000 stereo.

        Helpful (2)

        Is the pulley on this alternator a underdrive pulley and if not can I put one on it

        Hello dear do you have international shopping ? Saudi Arabia

        • We do not ship internationally.

        Helpful (0)

        do i need to replace the power wire with this since it puts out 20 more amps than the stock alternator?

        • lt is not necessary to replace the power wire when installing this alternator.

        Helpful (0)
        Post Your Question
        8 More Questions
        My alternator was blowing fuse cause it was outputting too much power will this one do the same it’s for a 2000 mustang gt 1 answer
        Just out of curiosity, with this 130 amp alternator, will I lose gain when the a/c is on ? 1 answer
        Will this fit my 99 cobra? 1 answer
        Would I need to upgrade the power cable for this alternator? Emphasis on NEED! Thank you! 1 answer
        Does this alternator fit on a 01 v6 mustang 1 answer
        Will this fit 2003 Saleen Mustang 281sc convt? 1 answer
        Does this alternator have any warranty? 2 answers
        does this give you any hp and torque boost?? 2 answers

          Customer Reviews (100+) Write a Review

          Ratings Summary

          4.5 out of 5 overall rating from 100+ customers

          Installation Time: Less than 1 Hour

          Installation Cost: 0-$100

          • November 07, 2019

            4 2003 GT - DonaldE Installation Time: Less than 1 Hour

            My new alternator

            I install this product on my 03mustang about three weeks ago so far I am very satisfied with it.

            Helpful (0)
          • November 07, 2019

            1 2004 GT - REC2FYME Installation Time: Less than 1 Hour

            Alternator replacement?

            The alternator has never worked with my car. Bench tested good at shop, but doesn't charge on vehicle. My 04GT came with a 2pin alternator connector for the regulator, this one has three and for some reason doesn't pick up the exciter to make it charge. Hope you have better luck than me. Because it test good on the bench you won't be able to return it. Makes a good paper weight or door stopper.

            Helpful (0)
          • October 22, 2019

            5 1999 GT - 865Mustang Installation Time: Less than 1 Hour

            American Muscle Best Place to Shop

            10/10 easy install, performs like it should, bullet proof

            Helpful (0)
          • October 06, 2019

            5 2002 GT - Andy Installation Time: Less than 1 Hour

            Good choice!

            Best price considering the other options. Solved my issue with backfiring on a cold start. Since mine was 18 years old and most likely on its way out, I just went ahead and replaced it. The video was helpful, and with a few tools, had it done in no time. If you decide to attempt it yourself, check and recheck the belt and make sure it’s right.

            Helpful (0)
          • September 06, 2019

            4 2004 GT - Chalie Installation Time: Less than 1 Hour

            Quick and easy

            Me and a friend took out the old one and placed the new one in about 45min

            Helpful (0)
          • September 02, 2019

            1 2004 GT - Mark Installation Time: Less than 1 Hour

            Seized Alternator

            This was my first order with American Muscle. I installed this and it seized after the second car start to my chagrin. It made a strange clicking noise that sounded like the bearings were bad to begin with. now i have to go through the whole return process.

            Helpful (0)
          • September 01, 2019

            1 2004 GT - Bcompton83

            Already locked up

            Bought this alternator to try out because it was a good price, but I’d recommend you spend the extra cash and get a better brand. This alternator locked up, and they don’t have any type of warranty, so now I have to buy another. Stay away from this alternator.

            Helpful (2)
          • August 24, 2019

            5 2003 GT - Tigmaster0615 Installation Time: Less than 1 Hour

            Perfect fit couldn’t be happier!

            Alternator went out and purchased this in order to accept new mods I’m about to install as well as helping my battery keep up with my Mach 1000 stereo.

            Helpful (1)
          • July 17, 2019

            1 2003 GT - Zeppelin1977 Installation Time: Less than 1 Hour

            Had for 1 year

            Had alternator for a year and a half went randomly went out called for a replacement they have no warranty great when it was working! Sucks now it doesn’t

            Helpful (0)
          • June 25, 2019

            3 2003 GT - JoeF Installation Time: Less than 1 Hour

            questionable reliabillity

            Performed well once it got here in one piece and the price was extremely reasonable. beginning to wonder if you get what you pay for though as it didn't last long! The first one was smashed in the box with the ear broken off and case cracked. Exchange service was excellent and a replacement came in a few days. Now less than one year later the alternator is malfunctioning. Overall view - disappointed with the failure but faith filled that A.M. will do the correct thing here and exchange it and hold the manufacturer responsible to quality. The car is a convertible so as such its a closet queen and has not gone 1,0000 miles since it was replaced! Working now to see if A.M. stands behind the product or not since its under 1,000 miles use and 10 months old. Stay tuned for an update.

            Helpful (0)
          • June 05, 2019

            5 2001 GT - BenS Installation Time: Afternoon

            My 2001 GT

            Item was priced well plus did not have to return old unit. Easy to install on my 2001 GT. Performance restored.

            Helpful (0)
          • May 29, 2019

            5 2004 GT - Bigbert Installation Time: Less than 1 Hour

            Great price!

            Looks and works better than stock. Runs smooth and seems more responsive. Great part!

            Helpful (0)
          • May 24, 2019

            4 2003 GT - ZachR Installation Time: Less than 1 Hour

            ST Performance Alternator

            Great replacement for the stock alternator. Have had it for about 5 months and still running strong.

            Helpful (0)
          • May 23, 2019

            5 2000 GT - BrianB Installation Time: Less than 1 Hour

            Perfect Alternator replacement

            Perfect alternator replacement. Easy to install. Great price!!!

            Helpful (0)
          • May 21, 2019

            5 2001 GT - MarkB Installation Time: Less than 1 Hour

            Alternator Replacement

            This is a good, economical replacement to the old worn out stock alternator that was 18 years old. Also gives you a little bit more charging capacity, especially if you are running underdrive pulleys. Looks great and fits with no problems.

            Helpful (1)
          • May 10, 2019

            5 2003 GT - Bryson Installation Time: Less than 1 Hour

            big help

            bought item because I was having start up issue, car just felt like it didn't have enough electricity to it. Mind you I have a pretty big stereo system and display, but when I put the 130amp on turns right over now!

            Helpful (1)
          • May 09, 2019

            5 2002 GT - Dangle99 Installation Time: Less than 1 Hour

            Excellent and easy install

            Great alternator at a great price. I didn’t realize how much of a power draw my after market stereo was on my battery. This alternator had a higher amp output that cured my issues. Exact fit, easy install, and would buy again.

            Helpful (0)
          • May 09, 2019

            5 2003 GT - demon357 Installation Time: Less than 1 Hour

            So far so good

            Alternator has been on about a month now and so far is working great. Alot cheaper than buying at any of the parts stores.

            Helpful (0)
          • May 06, 2019

            5 2004 GT - RobertH Installation Time: Less than 1 Hour

            Great product

            Works as it should with OEM fitment. Took me about 30 minutes to put on. Can be changed with simple socket set

            Helpful (0)
          • April 30, 2019

            5 2002 GT - JoshuaW Installation Time: Less than 1 Hour

            Great product

            Cheapest on the market works great no complaints whatsoever. I don’t write reviews but this is genuinely a great product. Easy install, may need one other personal but other than that nothing difficult.

            Helpful (0)

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