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BBK Underdrive Pulleys (94-98 V6)

Market Price $108.99 You Save 13% ($14.00)
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  • Item 56029
  • MPN# 1619

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    Features & Details

    • Gain Up to 15HP.
    • Two Piece Kit.
    • Brilliantly Polished Finish.
    • Fits 94-98 Mustang V6.
    Gain 15HP. Unleash hidden horsepower and improve throttle response by reducing the amount of power your accessories are draining from your Pony. You may not know it, but you can regain up to 15 "free" horsepower with a set of BBK underdrive pulleys, without sacrificing charging ability or A/C 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 underdrive pulleys are for the 1994 to 1998 V6 3.8L Mustang. Will require a 96" serpentine belt.

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

    Fitment: 1994 1995 1996 1997 1998 Details

    What's in the Box
    • (1) Crank Pulley
    • (1) Alternator Pulley
    Installation Info
    Tech Specs
    UnderDrive Pulley Specifications
    Year/Model: 94-98 V6 Manufacturer: BBK
    Material: Aluminum Finish: Polished
    Crank Pulley: Piggyback SFI Certifited: No
    Will it fit my Mustang?

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    Questions & Answers (6)

    5 Top Rated Questions

    Hello I live in California will this affect smog in any way? Also can you give me a link to a belt that’ll fit Thanks

    • We do not have a listed CARB number for this product and would suggest speaking directly to your local emissions board or wherever you have your inspection preformed in order to best verify. In terms a belt that will fit this is going to require the use of a 6-rib 96" length serpentine belt.

    Helpful (0)

    do you have to get a tune after install with these?

    • The BBK Underdrive Pulleys will not require a tune.

    Helpful (0)

    hows come they don't make a set of these for a 2001 v6

    • Unfortunately we do not offer an Underdrive Pulley Kit for a 2001 V6. We are constantly getting new items on our website. So keep checking back to our site in case we get one in the future!

    Helpful (0)

    Will the BBK underdrive Pulleys work with the original belt, or do I need ato get a new size belt?

    • The BBK Underdrive Pulleys (94-98 V6) will require the use of a 6-rib 96" length serpentine belt for the proper use.

    Helpful (0)

    Sound system? I have a 1400w Amp connected to a Subwoofer. Is it okay if I have one, or should I not install this?

    • These pulleys will have nothing to with the power output of the alternator for your sound system. 1400w amp is really nothing to worry about. Get a capacitor or higher output alternator for more power if you desire.

    Helpful (0)
    Post Your Question
    1 More Question
    will it fit on my 1999 3.8l mustang 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (52) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Performance Gain 4.473684 4.5
    • Fit 4.894737 4.9



    • 5/5

      August 24, 2017

      Best bang for the buck

      I love these pulleys really gives off a nice look. And you can feel the difference instantly.

      DustinC

      Year: 1998 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 01, 2017

      BBK under drive kit

      Easy to install if you have air tools or impact drill.

      Tyler

      Year: 1995 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      February 18, 2017

      Looks good

      Fit good and looks good don't notice a huge difference but notice a little difference

      Jim

      Year: 1995 Submodel: V6

      Helpful (2)

    • 5/5

      August 23, 2016

      Great Product

      I feel the power difference right away!. She really accelerates at a faster rate. When you hit the gas pedal just lean back and watch the RPMS climb!!! great product for my v6 mustang I really need to get a tune so i can see what she is really made of

      Titiania

      Year: 1996 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      December 13, 2015

      Good place to start.

      These BBK Underdrive pulleys are a very good place to start modding. I put these in my 97 3.8L, and the gains were immediate; acceleration is much more responsive now! I was able to install these within 2 hours, however you will have to have an impact wrench to do it at home.

      BT

      Year: 1997 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      January 05, 2015

      No Shake, adds small ponys

      Received this as a Christmas gift after i had been adding things to my build list. Was a bit nervous about the install because i didn't have an impact wrench. Took the underdrive pulley off after following some of the instructions given in the reviews. I had a bit of confusion at first because i was looking at the detailed instruction list that was provided by AM compared to the factory install. What i found was that it was easier than even the factory install shows (no real need to loosen/remove the water-pump pulley screws since you aren't replacing that pulley with this kit) and much easier than the detailed breakdown from AM customer showing how to remove the fan and such is unnecessary since it is wanting you to also remove the balancer as well (which needs the balancer puller, and is why you need the extra room). The detailed walk-through is a good breakdown and has a lot of pictures, so if you are visual like i am it really helped explain some things. However, you can skip everything that doesn't have to do with the either the alternator or under drive pulley itself. In short I disconnected the battery then used 13mm sockets to remove the under-drive pulley (loosen those bolts with the belt still on, then remove the belt and remove the bolts fully). Then either use an air impact wrench to remove the alternator pulley or like i did, take the alternator off (super easy in the v6 i think it needed 10mm and a 15mm for the two bolts and then just undo the wiring. there's a battery connector that was the only hand contortion i had to do with maybe a 7mm on the back of the alternator) and take it to an O'reilly's or auto parts store. They can swap the pulleys in about 2 minutes. Take the alternator back and bolt it back into place. The underdrive pulley goes on easy, then put the belt on. I used a 96 1/4" belt which fit perfect on my '98. Cake walk. I haven't had it on for too long but first impressions are it adds some small horsepower. I haven't got any official calculations but just noticing the tendencies it pulls a little harder at low end and slightly more at mid range. The other delightful change was the removal of engine shake. This was noticeable straight away for me as my idling was normally pretty rough. Now it is quiet and as still as a brand new car and I'm quite impressed. I have not had time to calculate MPGs but i will update if I notice something significant. One detraction I am having though is a sharp whine that is now coming from the engine compartment. I am guessing that it is the alternator cranking a bit more than normal. I have this and heated seats (convertible drive time extended by a month and a half :)) adding to additional power draw so i'm not sure if its that or something else. I'll have to inspect it later. I have near 170k on my car so it might be time to replace the alternator anyways. Looking to get a 150volt to be on the safe side for power needs. Otherwise a super easy bolt on that seems to have some good returns. For less than $100 this thing is worth every penny just to remove the engine shake, everything else is icing.

      Mith

      Year: 1998 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      September 10, 2014

      GET THESE!!

      These pulleys have already paid for themselves already. The increase in my MPG is very noticeable and the slight power increase is too...well worth the $90 price. Did not take much time to install them either. It really helps to have air tools...

      Coleminor

      Year: 1995 Submodel: V6 Ohio, USA

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      March 06, 2014

      best bang for your buck

      Very easy to install. The only thing I would suggest is an impack for the alternator bolt. I tried the 96" like it suggested but their was way to much play so I went down to a 92.3" belt which has worked perfectly. Idle smoother and quieter. The throttle response was way better. It didn't feel slugish off the line anymore. Worth the money.

      theponyexpress

      Year: 1996 Submodel: V6 Virginia Beach, VA, USA

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      May 16, 2013

      Great for the money

      Installation was very easy and quick. It took me less than 30 minutes. Idle is much smoother now and you can tell a good difference in throttle response, plus it's a little quicker in the 3k to 5k rpm range. Definitely happy with the product and would recommend to anyone

      Derek42

      Year: 1998 Submodel: V6 Atlanta, GA, USA

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      February 24, 2013

      Awesome upgrade!

      These pulleys were a nice upgrade, not too difficult to install, I had bought an impact wrench which made it way easier. Trying to use a socket wrench on the crank pulley just caused the engine to turn, so definitely get an impact wrench. Also I had to remove the fan cause the impact wrench I got was huge, its was an electric one I got for cheap at Autozone, but after installation there was a definite boost, so all in all it was definitely worth it!

      Claxtron

      Year: 1995 Submodel: V6 West Palm Beach, FL, USA

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      January 09, 2013

      Awesome

      Easy installation when you have an impact wrench. Bit of difference in horsepower. Great look! I've had my SN-95 for a little over a year, and have gotten an average of 17mpg. Never got 20mpg... Until the first fill up after installation. Get these!

      Ally95

      Year: 1996 Submodel: V6 Houston, Tx

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      August 08, 2012

      Easy and Awesome

      The installation wasn't hard at all, just needed an air impact to do the job. Also advanced auto will switch the alternator pulley for free and test your alternator while your at it! I have this pulley kit with an ac eliminator pulley freeing up a lot of horsepower! great mod!

      Aaronnoraa21

      Year: 1994 Submodel: V6 Sioux Falls, SD, USA

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      July 29, 2012

      Under drive pulleys

      These pulleys were very easy to install,. The only problem I ahd was a frozen belt tensioner, ( which would not move ). Make sure your parts store give you the correct length belt. I eneded using a 96 inch belt. After to computer adjust for the pulleys you will notice some difference.

      yboomer

      Year: 1997 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 19, 2012

      Nice!

      Didn't know how much of a difference the pulleys would make but WOW definitely a noticeable difference! The throttle response has improved quite a bit! My engine doesn't shake hardy at all. The install took about an hour. Had to take the alternator to someone with an impact gun. I first bought a 94'' belt but it was to small so I went with the 96'', fit great! Good bolt on! Buy it!

      Nick

      Year: 1998 Submodel: V6 Denver, NY

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      April 12, 2012

      Good Mod

      Installation was easy only took about 10 minutes. I had to go with a 94 inch 6rib belt. i dont know about that 15 hp gain but i got about 5 more horses overall a good product.

      astros1000

      Year: 1994 Submodel: V6 Raleigh, NC

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      April 08, 2012

      Underdrive Pullye

      These underdrive pulleys were what my car needed! My engine and car don't shake as much any more and it feels a lot somother. The gains on torque and horsepower are noticable. I will continue with the throttle body. BBK makes great products. Thanks AM and BBK!

      Sergmeister

      Year: 1998 Submodel: V6 Montrose, CA

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      January 27, 2012

      Great ADD!

      Definitely noticed an improvement on Gas mileage! Made a 1400 mile trip up to Virginia from Florida and back and was amazed at the gas I saved.

      tkittelstad

      Year: 1996 Submodel: V6 Lakeland, Fl

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      January 23, 2012

      chris c SUF AZ

      I really felt the HP gain on my 98 v6. Installation was less then 20 minutes, you will need a smaller serpentine belt. Overall great product and easy way to get extra HP.

      ChrisSUFAZ

      Year: 1998 Submodel: V6 phoenix, AZ

      Helpful (2)

    • 4/5

      Installation Time: Less than 1 Hour

      November 08, 2011

      Cheap and quick

      Okay so First of all, the crankshaft under drive is good, its definitly smaller, and somewhat good quality. Easy to take off, easy to put on. The only bad thing is, that it says it comes with the water pump pulley, but it doesn't. it comes with an alternator pulley which really defeats the purpose of it all. So i didnt put it, so far no charging problems, everything is good, i do feel a little difference, nothing that crazy. I went to autozone and asked them to get me a belt 8 sizes smaller than the stock one and it fit tight but good. Lets see if it helps out in gas too. overall, i think its not worth 90 bucks, cause its just a alluminum pulley, but if you have the money, eh its worth a shot.

      Dannyg

      Year: 1996 Submodel: V6 Miami FL

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      October 11, 2011

      a+

      Engine temp litel higher but still way within normal

      crh1993

      Year: 1996 Submodel: V6 dearborn heights MI

      Helpful (2)

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