BBK Underdrive Pulleys (Late 01-04 GT)

BBK Underdrive Pulleys (Late 01-04 GT)
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OUR PRICE$154.99
BBK Mustang Performance Parts
Item # 56008
Market Price $176.69You Save 12% ($21.70)
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Product Features

  • Gain up to 15HP
  • Three Piece Kit
  • Brilliantly polished finish
  • Fits Late 2001 to 2004 GT
Gain 15HP. Improve throttle response and add power throughout your RPM range by reducing the amount of power you're losing to your accessories. And best of all, you don't have to sacrifice your A/C or charging performance - you can free up as much as 15HP with a set of BBK underdrive pulleys for your GT without negatively affecting your Mustang's ability to keep you cool.

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. This BBK Underdrive Pulley kit installs quickly and easily in under 2 hours with no modifications required.

Application. These BBK underdrive pullies are designed to fit the Late 2001 to 2004 GT Mustangs with the short water pump pulley with a bowed in face. Re-uses stock 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.

UnderDrive Pulley Specifications
Year/Model: Late 2001-2004 GT Manufacturer: BBK
Material: Aluminum Finish: Polished
Crank Pulley: Piggyback SFI Certified: No

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

  • (1) Water pump pulley
  • (1) Alternator pulley
  • (1) Crank pulley

What's in the box?

  • (1) Water pump pulley
  • (1) Alternator pulley
  • (1) Crank pulley
  • GT 01, 02, 03, 04
Known Exceptions:
Fits Mid 2001 to 2004 GT's Only

About BBK

BBK Mustang Performance Parts
Since 1988 BBK has been the leader in aftermarket Mustang performance parts and accessories and has grown to a top brand in Fuel Injection performance with three facilities totaling over 150,000ft where they design and build there vast product line here in the USA. Starting with products for the then new EFI Mustang back in 1988, BBK has along the way introduced many firsts to the Mustang aftermarket such as throttle bodies, cold air intakes, equal-length headers and there famous adjustable clutch quadrant kits. With over 500 product applications including dozens of products for the hot new 2011 Mustang V6 & 5.0L models BBK always delivers the best OEM quality, dyno proven performance upgrades for your favorite Mustang.