1979-93 Ford Mustang BBK Aluminum Underdrive Pulley Kit - Fox Body by BBK

Mustang BBK Aluminum Underdrive Pulley Kit (79-93)

Details   |  Description   |  Customer Photos   |  Reviews
Mustang BBK Aluminum Underdrive Pulley Kit (79-93)

Fee up the horsepower on your Mustang Fox Body with a set of BBK 79-93 Mustang 5.0 Aluminum Underdrive Pulleys!

Item #BBK-1553

Your Price: $119.99

Market Price:$149.99
You Save 25.00 % ($30.00)

In Stock
Ships tomorrow!

Add to cart


  • Increase Horsepower
  • Reduce Drag


  • Made in USA
  • Satin or "clear" Finish Pulleys
  • Billet Aluminum
  • Installs with simple hand tools
  • Fits 1979-93 5.0L or V8 Mustang

What's in the Box

  • (1) Set of 3 (crank, water pump, alternator) under drive pulleys and hardware

Made in the USA

Product Description

Made from aircraft quality machined steel or aluminum alloy these BBK Mustang under drive front accessory pulley kits are one of the easiest ways to free up an average 8-15 horsepower in under 30 minutes.

These Mustang BBK pulley kits are designed as direct bolt on replacements for the current Ford factory pulleys and retain full cooling and charging characteristics.

Each BBK Mustang under drive pulley kit is vehicle specific. They are designed and tested at the BBK headquarters in Southern California for maximum performance.

These under drive pulley kits are available in a hand polished aluminum finish or gloss black powder coated steel. Each Mustang pulley kit comes with complete installation instructions and allow the use of existing serpentine belts.

Due to the difference in diameter from the stock Mustang pullies, the alternator and charging system may need to be upgraded if you have a large stereo system.

These BBK Mustang underdrive pullies work great on a stock or modified V8 GT or LX Mustang!

Customer Photos (1)

Product Reviews (7)

out of 5 stars
4.5 stars
7 reviews
5 stars    5
4 stars    1
3 stars    1
2 stars    0
1 star    0

7 of 7 REVIEWS
7 of 7 REVIEWS

5 Stars   Fitment
By on 2/3/2014
FYI - requires a different size belt to complete installation.
From LateModelRestoration.com®: This BBK pulley kit is designed to work with a stock length belt. Your car must have already been equipped with a different pulley configuration.
Yes, I would recommend this item to a friend!

Was this review helpful to you?

4 Stars   Causes the belt to squeal. Still worth it.
By on 10/5/2014
I would rate this product a full five stars if the polished aluminium wasn't so smooth that it caused the accessory belt to squeal for a second or two on cold start-ups, and sometimes even under heavier acceleration. It usually goes away once the engine is warm. Even with a brand new belt, it would still squeal. While I haven't tried it yet myself, maybe scuffing the surface of the pulleys just a bit might help.

In terms of performance, don't expect a radical difference because of these things, but there will be a noticeably better response time to throttle. They also look pretty sweet. If you're running electrical fans and/or a beefy stereo setup, (1000+ watts), even with a 3G alternator upgrade (130 amp), the lights will still dim noticeably when at idle after a bit of time, but there are zero issues with coolant temperature. If you're still on a stock alternator, these pulleys are probably not a good idea as you will run into charging issues.

Overall, I recommend them if you can find them on sale (under $100). I can't say they are worth the regular price.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

5 Stars   Great Product Easy Install
By on 11/14/2014
I bought these underdrive pulley's and they look great once fitted on the car. They were relatively easy to install and took about an hour to install with simple ordinary hand tools... From a performance stand point i notice considerable differences in throttle response and acceleration. for the price and how easy they were to install i would definately recommend purchasing these... they also really accent the under hood area well...

Yes, I would recommend this item to a friend!

Was this review helpful to you?

5 Stars   Best looking and performance
By on 8/19/2015
I had this BBK Aluminum pulleys couple of times on several cars I owned and they always change my engine bay appearance as well my cars performance, great buy worth it!

Yes, I would recommend this item to a friend!

Was this review helpful to you?

5 Stars   Great Product
By on 12/15/2014
I still have yet to install but they came in the mail so fast and can't wait to get around to install to see how much they work.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

5 Stars   Nice fit easy to install. Basic tools.
By on 5/27/2015
Image uploaded by david o. I bought this took me only a few hours to install the basic tools nice customer service at late-model restoration

Yes, I would recommend this item to a friend!

Was this review helpful to you?

3 Stars   look nice but
By on 7/20/2015
Look awesome but cause me overheating issues that I never had before them when I'm putting around town

Yes, I would recommend this item to a friend!

Was this review helpful to you?

Vehicle Applications

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85) - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

About This Brand

BBK - Today's Performance
Since 1988 - BBK has dedicated itself to designing and building cutting-edge high-performance parts and accessories for today's EFI-equipped Mustangs and Ford Lightnings while maintaining the OEM quality levels.

From their world-famous line of "Power-Plus-Series" performance throttle bodies to their hundreds of "CNC-Series" performance exhaust offerings - the BBK brand is known for delivering unmatched value and quality. Shop BBK for your Mustang headers, exhaust, cold air intakes, and other performance parts!

Look for Similar Items by Category

Ford Mustang Parts » Mustang Engine & Underhood » Mustang Accessory Drive » Mustang Pulleys
1979-1993 Mustang Parts » 1979-1993 Mustang Engine Parts » 1979-1993 Mustang Accessory Drive » 1979-1993 Mustang Pulleys

Products by Vehicle