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BBK Underdrive Pulleys (96-Mid 01 GT; 96-99 Cobra)

Item 56007
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Market Price $192.09 You Save 12% ($22.10)
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$169.99

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    Features & Details

    • Gain Up to 15HP
    • Three Piece Kit
    • Brilliantly Polished Finish
    • Fits 96-Mid 01 GT and 96-99 Cobra
    Gain 15HP. You might not know it, but your accessories are draining up to 15HP they don't need. But you can get those ponies back by adding a set of BBK underdrive pulleys. BBK underdrive pulleys are designed so you can reduce the load your accessories put on your engine, without sacrificing cooling or charging performance.

    Premium Quality. Made of aircraft quality aluminum alloy, these BBK aluminum pulleys won't weigh you down.

    Hand Polished. The brilliant polished finish of these underdrive pulleys will give your engine bay a high performance look.

    Easy Installation. Installation normally takes about 30 minutes and full instructions are included.

    Application. These BBK underdrive pulleys are for the 1996 to Mid 2001 GT and 1996 to 1999 Cobra with a long water pump (bowed out face). Re-uses factory serpentine belt

    Technical Note. Midway through the production run for the 2001 model year Ford changed the design of the water pump on the 4.6L engine. The older style pump produced from 1996 to mid 2001 had a longer shaft. In January of 2001 the design of the pump was changed to a shorter shaft. This necessitated a change in the design of the pump pulley.

    Click here to see pictures of the different pulley styles.

    Fitment: 1996 1997 1998 1999 2000 2001 Details

    MPN# 1555

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

    What's in the Box
    • (1) Water pump pulley
    • (1) Alternator pulley
    • (1) Crank pulley
    Installation Info
    Tech Specs
    Underdrive Pulley Specifications
    Year/Model: 96-Mid 01 GT;
    96-99 Cobra
    Manufacturer: BBK
    Material: Aluminum Finish: Polished
    Crank Pulley: Piggyback SFI Certified: No
    Will it fit my Mustang?

      Customer Photos (6) Submit Your Photo

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        Questions & Answers (5)

        5 Top Rated Questions

        Do you need a tune after installing?

        • A tune never hurts, you would not have to do one, but we would suggest it.

        Helpful (0)

        I own a 96 cougar with the 4.6L V8 will this fit my vehicle as well?

        • Unfortunately we cannot confirm fitment with Cougar models.

        Helpful (0)

        Do the bbk underdrive pulleys require the use of the factory harmonic balancer? I see some picks without it and with it bolted to underdrive crank pulley Thanks

        • The BBK Underdrive Pulleys will require the harmonic damper/balancer bolted to the crank pulley, or engine damage could occur.

        Helpful (0)

        I have balance the stock harmonic balancer do I need to balance this one as well

        • The balancer included in this kit does not need to be balanced if used with the OEM rotating assembly. if you have a new rotating assembly, then you may wish to consider having this balanced if the balance was different than the OEM rotating assembly.

        Helpful (0)

        With a vortech supercharger bolt on, and the underdrive pullies. What belt is compatible with this set up?

        • We strongly recommend against using the BBK Underdrive Pulleys with any supercharger, as this will effect boost pressure.

        Helpful (0)
        Post Your Question

          Customer Reviews (33) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Performance Gain 3.941176 3.9
          • Fit 4.823529 4.8



          • 5/5

            Installation Time: Less than 1 Hour

            October 02, 2019

            Wao!

            I took me about an hot to install and once it was all good to go, I started it up and it even sounded better! That could just be me though BUT when I took it for s test drive I DEFINITELY felt a difference! I have s 2000 Mustang GT and this was my first modification. Simple and easy to do and definitely worth it!

            Erecendez89

            Year: 2000 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            September 13, 2019

            Great product

            Good product and good price does not take very long to install

            Svtjim

            Year: 1998 Submodel: Cobra

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            April 01, 2019

            Bbk underdrive

            Alternator and water pump work great, dont like having to bolt the factory harmonic balancer to the underdrive for crankshaft not a very clean look.

            JacobC

            Year: 1996 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            October 23, 2018

            Wife Loves the power

            For my wife’s 2000 Roush Felt a big difference. Highly recommend took me almost an hour to do it

            SilvesterO

            Year: 2000 Submodel: GT

            Helpful (3)

          • 4/5

            Installation Time: Less than 1 Hour

            July 13, 2018

            Red 97gt

            I was kind of worried about putting on the piggyback underdrive style but I wanted to dress up under the hood and steedy didn't have the polish underdrive but wow I was surprise with the bkk underdrive the car have better take off and more power in 3rd I would recommend the bkk underdrive

            JamesM

            Year: 1997 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            October 20, 2017

            B b K

            It made muy engine feel a lot smoother, and the response i feel like it improve.

            PedroR

            Year: 2000 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            October 05, 2017

            Pulleys

            Nice pulleys!! Only thing that I didn't understood was why would you attach the stock harmonic balancer to the new one??

            Dieselkaos

            Year: 1998 Submodel: Cobra

            Helpful (11)

          • 5/5

            Installation Time: Less than 1 Hour

            September 07, 2017

            BEST BANG FOR THE BUCK!!!

            Light weight, easy to install and makes for a good look at the show.

            BlackLighting

            Year: 1999 Submodel: GT

            Helpful (4)

          • 4/5

            Installation Time: Less than 1 Hour

            August 08, 2017

            Polished Pullies.

            I was in the market for polished under drive pullies and chose the BBK. I did not want piggy back style pullies but I could not find polished versions that replaced the harmonic balancer. Steeds makes one that replaces the harmonic balancer but doesn't come polished. The BBK piggy back pulley functions well with a very noticeable improvement in performance. Coupled with the BBK all in one throttle body my 2000 GT runs GREAT. The engine breaths and rev much quicker. I would have been happy to pay more and gotten a polished harmonic balancer since I do attend numerous car shows.

            KennethM

            Year: 2000 Submodel: GT

            Helpful (5)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            July 23, 2017

            BBK under pulleys

            Nice product, well constructed and finished. I've noticed a bit improved response. Far as horse power, no. I'm sure with add mod's and tuning there will be a difference.

            lobster100

            Year: 1999 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            July 02, 2017

            Definitely a must have

            Throttle response is slightly improved. Looks nice and clean.

            LuisR

            Year: 2002 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            June 07, 2017

            Amazing

            Love this product really high quality and helps add power

            BrianK

            Year: 1998 Submodel: GT

            Helpful (6)

          • 4/5

            August 14, 2016

            Bbk pulleys

            Product was great, pulleys well made. Gained maybe a few hp. Car feels alot quicker. I recommend this product.

            Zach

            Year: 2001 Submodel: GT

            Helpful (6)

          • 4/5

            July 26, 2016

            Worth but not a fan of the setup

            Great product, purchasing a new belt for the different sized pulleys isn't necessary which made me happy. Everything goes on great except i wasnt a fan of how the new crank pulley they give you is just bolted on to the one i already have. Its a strange setup to me. I did notice a slght change in sound coming from the engine that i like aswell as a slight noticeable increase in HP

            David

            Year: 2000 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Afternoon

            February 14, 2014

            Nice product

            Very impressed with the look and finish of the pulley's, I put it took an afternoon, but there was some beer breaks involved! very easy to install. and now the car is more responsive. Love the BBK products that I've used. K

            HUGGY

            Year: 1997 Submodel: GT Reno, NV, USA

            Helpful (7)

          • 4/5

            Installation Time: Afternoon

            April 06, 2013

            BBK Under Drive Pulleys

            If it's added HP and a good looking engine you want, these BBK pulleys do the trick. Two benefits with one product. The pulleys were well finished. Installation was easy with air tools and a puller. I recommend removing the electric fan and shroud to make the install easier. Gave me an opportunity to clean up and detail some other engine parts in the area.

            HoboJohn

            Year: 1996 Submodel: Cobra Coquitlam, BC, Canada

            Helpful (6)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            June 21, 2012

            love the look

            i felt some gain in acceleration and throttle response...i recomend this product...

            TrickyNicky81

            Year: 2001 Submodel: GT Huntingdon, TN 38344, USA

            Helpful (4)

          • 4/5

            Installation Time: Shop Install

            April 01, 2012

            awesome

            this is a must have for your pony. car runs so much better. please get new belt with this set. old belt will wine. looks great and it works. worth every penny

            YaYa

            Year: 1996 Submodel: GT Dyersburg, TN, USA

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            January 29, 2012

            BBK Underdrive pulleys are great,

            I have a 1997 mustang cobra,and I can feel the difference in my take off and you can feel the difference in horse power.This is a great product from BBK keep up the good work.

            junemostwanted

            Year: 1997 Submodel: Cobra Chicago IL,

            Helpful (5)

          • 5/5

            November 09, 2010

            BBK Underdrive Pulleys

            This Pulley system is awesome, i felt a huge difference in my 1997 automatic mustang gt, well worth the buy, acceleration dramtically impoved including throttle response. I would recomend this product to anyone

            Edward

            Year: 1997 Submodel: GT

            Helpful (5)

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