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SR Performance Underdrive Pulleys - Polished (94-98 V6)

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  • Item 525572

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    Features & Details

    • Free Up 6-10 Horsepower
    • Complete 2 Piece Kit
    • Durable, Lightweight Aluminum
    • Polished Finish
    • Premium Quality Construction
    • Fits 1994-1998 3.8L V6 Mustangs
    Free Up Horsepower. A set of SR Performance Underdrive Pulleys reduce parasitic drivetrain loss by cutting down the amount of power your accessories take up, these underdrive pulleys will free up 6-10 horsepower, without sacrificing cooling and charging functionality of your Pony.

    Premium Quality Construction. CNC-machined from lightweight aircraft grade quality aluminum alloy for strength and durability, these SR Performance pulleys feature a bright polished finish that will give your engine bay an eye-catching high performance appearance.

    Easy Installation. These SR Performance Mustang Underdrive Pulleys installs quickly and easily in under 2 hours with no modifications required.

    Application. This SR Performance 2-Piece Aluminum Underdrive Pulley Kit is designed for use on 1994 to 1998 Ford Mustangs equipped with the 3.8L V6 engine. Will require a new 96" serpentine belt.Technical Note: This pulley system requires the use of a 6-rib 96" length serpentine belt.

    SR Performance

    Fitment: 1994 1995 1996 1997 1998 Details

    MPN# 525572

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) alternator pulley
    • (1) crank pulley
    Installation Info
    Tech Specs
    UnderDrive Pulley Specifications
    Year/Model: 1994-1998 3.8L V6  Manufacture: SR Performance
    Material: Aluminum  Finish: Polished
    Crank Pulley: Piggyback SFI Certified: No
    Will it fit my Mustang?

      Customer Photos (8) Submit Your Photo

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        Questions & Answers (8)

        5 Top Rated Questions

        Can I be put in the rite direction on finding an underdrive pully for a 04 3.9L, I only been able to find one, the MOTOBLUE H.O. PULLEY KIT but its quite pricey compared to other pulleys ive found for earlier years. I thought the good people at American Muscle could help me out as you have many times in the past.

        • Unfortunately, at this time we do not carry an underdrive pulley for the 2004 V6 Mustang and are not aware of any vendors that make that pulley other than the Motobluepulley kit you mentioned.  We apologize for the inconvenience. 

        Helpful (2)

        after instaling this my belt did not fit do i need to order a smaller one or if mine just worn out (it is), if i need a smaller one could you direct me with which size to order. thank you

        • This pulley system requires the use of a 6-rib 96" length serpentine belt.

        Helpful (1)

        nesecito SR Performance Underdrive Pulleys - Polished para 2002 v6

        What is the exact weight of this versus stock?

        • The SR Performance Underdrive Pulleys will weigh in at approximately 2 lbs. At this time we do not have a reliable weight for the OEM pulleys these replace.

        Helpful (0)

        What is the difference between this, and the under drive set that BBK offers?

        • There would not be a difference between the two performance wise. However, the BBK kit would be made of better quality material and would offer a better warranty.

        Helpful (0)
        Post Your Question
        3 More Questions
        Why doesn't this fit the 99-00 v6? 1 answer
        Will this work with a 2001 3.8 1 answer
        can someone point me in the direction of the serpentine belt that can fit on this because im having trouble finding one that is 96" that will alow me to use this product. I own a 1998 3.8ltr v6 mustang 1 answer

          Customer Reviews (17) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Performance Gain 3.733333 3.7
          • Fit 4.866667 4.9



          • 4/5

            June 21, 2019

            98 v6

            The pulleys look pretty good havent install them yet but it doesn't seem difficult i just had a bad time looking for the serpentine belt till i found a nice worker that knew how to do his job and find it for me

            Loud98

            Year: 1998 Submodel: V6

            Helpful (0)

          • 5/5

            December 18, 2018

            V6 underdrive pulleys

            I have not installed yet but looks awesome! Its exactly as it described. I hope it give a little more horsepower.

            MatthewC

            Year: 1998 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            November 23, 2018

            Better look

            I love it it look amazing, and it feels the difference,

            Thegreenmustang

            Year: 1996 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            October 27, 2018

            Look good!

            Fit well. Easy to fit. Look good. Marginal power gain.

            DavidW

            Year: 1994 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 10, 2017

            Great product

            Great productExactly what I ordered quick and easy to install and they even give you the belt size that you will need after you install these

            MichaelT

            Year: 1996 Submodel: V6

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            October 18, 2017

            Nice upgrade

            Good quality. Good fit. Reasonably easy to fit, but you will need a impact wrench for the alternator pulley nut. I also soaked the crank pulley bolts in WD40 for a week as the pulley just turned when I first tried to undo them. No noticeable power gain as far as I can tell, but they brighten up the engine bay!

            DavidW

            Year: 1994 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            October 02, 2017

            SR Underdrive Pulleys

            Product arrived earlier than anticipated giving me enough time to paint them black. The as shipped polish looked nice but would look out of place in my engine compartment. I was replacing the idler pulley and belt tensioner at the same time which bumped the install time to about 2.5 hours. Was unable to get the bolts to break loose on the lower pulley using the prescribed method so removed the fan and radiator overflow catchcan (3 bolts, 1 elect connector, and 1 push on hose) in order to get the impact to fit. Haven't done much "performance testing", but have noticed it appears to accelerate quicker under normal driving conditions. The product looks great, is much lighter than the stock unit, and appears to be adding noticeable power to the car (how much?!?!?). Recommended product... definitely....

            DavidB

            Year: 1997 Submodel: V6

            Helpful (5)

          • 4/5

            Installation Time: Afternoon

            September 01, 2017

            SR Underdrive Pulleys

            Installation only took a little over an hour. You'll most likely need another person to keep the crankshaft from turning while breaking the bolts loose and tightening them. I used an air wrench on the alternator nut which made short work of it. I also sprayed WD40 on all bolts and the alternator nut/threads a few days before installing.

            60sGuy

            Year: 1998 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            January 28, 2017

            Review from SR Performance Underdrive Pulleys - Black (94-98 V6)

            SR Performance Underdrive Pulleys v6

            It was a pretty easy installation. You will need an impact. I tried without one and couldn't do it. It looks good and has a performance gain.

            Phillip

            Year: 1998 Submodel: V6

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            January 24, 2017

            Easy mod

            Great fitment way lighter then stock pully.Noticable power

            V6staang

            Year: 1996 Submodel: V6

            Helpful (6)

          • 4/5

            September 26, 2016

            Review from SR Performance Underdrive Pulleys - Black (94-98 V6)

            Good product

            The pulleys both felt lighter than the stock ones, however I can't really feel any difference. Maybe when I get it re tuned I will.

            Driftstang98

            Year: 1998 Submodel: V6

            Helpful (6)

          • 3/5

            August 23, 2016

            Looks nice under the hood

            This looks really nice under the hood. Make sure you have an impact wrench and a breaker bar for installation. If you have those then it isn't too bad to install. Not any noticeable performance gain but it looks nice

            Chuckb348

            Year: 1994 Submodel: V6

            Helpful (6)

          • 4/5

            Installation Time: Afternoon

            May 08, 2016

            Underdrive Pulleys

            The crankshaft pulley is fairly easy to install with a torque wrench and a Haynes manual. The alternator pulley has to be taken to a shop to be put on. Not a huge power gain, but it's enough to feel and you get better mpg too. Definitely worth the money in my opinion, especially if you have to replace the belt anyway.

            V6MustangFTW

            Year: 1998 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            March 11, 2016

            Horsepower to my pony

            Excellent Perfomance with this pulleys this is a good mod

            Rony

            Year: 1996 Submodel: V6

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            October 17, 2015

            Look amazing, but not a real noticeable difference

            Took roughly 15 minutes to install. No pulley kit is required for this mod, just simple ratchet and sockets. But after installing it can't say I notice much of a difference. I had the SR performance CA intake system before and after this mod, but again after installation not sure if there's much of a gain as others say they feel. Maybe the throttle response is a bit better? But as far as horsepower goes, it's not enough that you will feel it in your little v6. I'd say if you're going to buy this mod, buy it for the engine dress up, because it looks nice under the hood.

            Resausk

            Year: 1998 Submodel: V6 Riverside, CA

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            August 27, 2015

            It was what I wanted

            Got more of a kick when I took off, if you want a little more power for your V6. Then this is the right thing to have

            Tristan17

            Year: 1997 Submodel: V6 Davenport, FL

            Helpful (6)

          • 4/5

            Installation Time: Less than 1 Hour

            August 21, 2015

            Review from SR Performance Underdrive Pulleys - Black (94-98 V6)

            outstanding quality. (as always from AM)

            These SR performance underdrive pulleys for your 94-98 v6 mustang are perfect for someone that wants that little extra feeling of power. They will not make it to where you can smoke any car on the freeway but, on the fyno test, you gain a few horses. Plus they look spectacular under the hood of my white 98 v6.

            crystalwhitepowerhouse

            Year: 1998 Submodel: V6 harrodsburg,ky

            Helpful (3)

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