Steeda Underdrive Pulleys (Late 01-04 GT)

Steeda Underdrive Pulleys (Late 01-04 GT)

About Steeda

Steeda Mustang Performance Products
For over 2 decades, Steeda Autosports has been the undisputed leader in Mustang performance. No other aftermarket manufacturer has won more races, set more track ...... READ MORE
OUR PRICE$209.99
Market Price $234.99You Save 11% ($25.00)
Item # 16090
Ships the same business day

Accessories Options

Add 01-04 GT Ford Motorcraft Serpentine Belt
PRICE WITH OPTIONS $209.99

Product Features

  • SFI Approved
  • 8 - 10 RWHP recovery
  • Improves fuel economy
  • 25% reduction in parasitic accessory drag
  • Exceeds OEM material specifications
  • Fits Late 2001 to 2004 GT Mustangs
Regain Lost Power. Get back the power and torque your belt-driven accessories steal. As hard as it may be to believe, you can regain from 8 to 10 “free” horsepower with Steeda’s underdrive pulleys. These pulleys reduce engine parasitic drag from your accessories by about 25% and even improve fuel economy.


Superior Materials. Steeda underdrive pulleys are manufactured from nodular iron, and far exceed the quality of the stock factory pulleys. The one-piece crankshaft pulley uses a high-tech injection molded bonded rubber damper, making it far more durable than other manufactures "piggyback style" underdrive pulleys.


SFI Approved. Steeda underdrive pulleys are SFI approved for use by all major race sanctioning bodies.

Application. These Steeda Underdrive Pulleys are specifically designed for use on the Late 2001 to 2004 4.6L V8 GT Mustangs.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.

UnderDrive Pulley Specifications
Year/Model: Late 01-04 GT Manufacture: Steeda
Material: Steel Finish: Black
Crank Pulley: One Piece Crank SFI Certifited: Yes

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

Hardware included:
  • Crankshaft pulley
  • Water pump pulley
  • Alternator pulley
  • Crankshaft pulley starter bolt*
* must be removed after seating pulley!

What's in the box?

Hardware included:
  • Crankshaft pulley
  • Water pump pulley
  • Alternator pulley
  • Crankshaft pulley starter bolt*
* must be removed after seating pulley!
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Fitment:
  • GT 01, 02, 03, 04
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Known Exceptions:
Fits Mid 2001 to 2004 GT's Only.

Customer Reviews

4.646
  • 5/5
    highly impressed
    August 17, 2010
    AJ
    super easy to install, than again i am a tech, but would be super easy for anyone with proper tools, aka an impact and pully remover. i was very impressed with the mid range power gain. low end torque was increased some and also with throttle responce, but the mid range power was pretty noticable, i would definantly reccomend this to any mustang owner inless you plan to put boost to your motor because you wont be able to run as much psi with underdrives. thanks AM
    6 of 6 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Great Product
    February 9, 2010
    Andrew
    2003GT
    These pullys were a great addition to my 03 GT didnt see much of a gain in power but are a very goodproduct. The best part is the crank pully isnt a piggyback system like other kits.
    4 of 4 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Quick RPM Jump
    January 30, 2010
    SOHAIL
    2001GT
    Hi guyz this is my very first MOD for my 01 GT. I dont know much about these cars yet, but I managed to install these Pulleys easily. Right after installation RPM jumps quick and car is more responsive. So far my AC/Power Steering and all the other accessories work fine. There is a noticable gain in acceleration, BUT NOT A LOT.
    4 of 5 voted this as helpful.Yes, I recommend this product.