BBK Lightweight Billet Aluminum Underdrive Pulley Kit — Fits 97-04 Ford 4.6L/5.4L

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SKU: BBK15550
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Power Up Your Ford Truck

Get more out of your 1997-2004 Ford F-150 or Expedition with the BBK Lightweight Billet Aluminum Underdrive Pulley Kit. Specifically designed for 4.6L and 5.4L engines, these pulleys reduce the energy required to drive your engine accessories. This efficiency gain translates into an average of 8-15 additional horsepower, giving your truck better towing capability and acceleration.

Durability Meets Performance

Manufactured from high-quality billet aluminum via CNC machining, these pulleys are built to withstand the rigors of daily driving and heavy-duty use. Their lightweight design minimizes rotating mass, which helps the engine rev more freely. The kit is a direct bolt-on replacement, meaning you don't have to worry about complex modifications.

  • Compatible with 97-04 Ford F-150, F-250, and Expedition
  • Increases horsepower and torque output
  • Lightweight CNC-machined billet aluminum
  • Retains full cooling and charging system functionality

This kit is the perfect way to enhance your truck's performance without sacrificing reliability. It integrates perfectly with your existing serpentine belt system, making it an ideal upgrade for both work trucks and performance builds. Trust in the quality of BBK products to help you get the most out of your Ford engine. Shop with confidence at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2003 Ford Expedition Eddie Bauer
1997-2003 Ford Expedition XLT
1997-2000 Ford F-150 Base
1997-2004 Ford F-150 Lariat
1997-2004 Ford F-150 XL
1997-2004 Ford F-150 XLT
2000-2003 Ford F-150 Harley-Davidson Edition
2001-2003 Ford F-150 King Ranch
2004 Ford F-150 FX4
2004 Ford F-150 STX
2004 Ford F-150 Heritage SVT Lightning
2004 Ford F-150 Heritage XL
2004 Ford F-150 Heritage XLT
1997-1999 Ford F-250 Base
1997-1999 Ford F-250 Lariat
1997-1999 Ford F-250 XL
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty XLT
1999-2004 Ford F-350 Super Duty Lariat
2003-2004 Ford F-350 Super Duty King Ranch

Product Details

Product Description
Part Numbers
Sizing & Fit

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Power Up Your Ford Truck

Get more out of your 1997-2004 Ford F-150 or Expedition with the BBK Lightweight Billet Aluminum Underdrive Pulley Kit. Specifically designed for 4.6L and 5.4L engines, these pulleys reduce the energy required to drive your engine accessories. This efficiency gain translates into an average of 8-15 additional horsepower, giving your truck better towing capability and acceleration.

Durability Meets Performance

Manufactured from high-quality billet aluminum via CNC machining, these pulleys are built to withstand the rigors of daily driving and heavy-duty use. Their lightweight design minimizes rotating mass, which helps the engine rev more freely. The kit is a direct bolt-on replacement, meaning you don't have to worry about complex modifications.

  • Compatible with 97-04 Ford F-150, F-250, and Expedition
  • Increases horsepower and torque output
  • Lightweight CNC-machined billet aluminum
  • Retains full cooling and charging system functionality

This kit is the perfect way to enhance your truck's performance without sacrificing reliability. It integrates perfectly with your existing serpentine belt system, making it an ideal upgrade for both work trucks and performance builds. Trust in the quality of BBK products to help you get the most out of your Ford engine. Shop with confidence at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2003 Ford Expedition Eddie Bauer
1997-2003 Ford Expedition XLT
1997-2000 Ford F-150 Base
1997-2004 Ford F-150 Lariat
1997-2004 Ford F-150 XL
1997-2004 Ford F-150 XLT
2000-2003 Ford F-150 Harley-Davidson Edition
2001-2003 Ford F-150 King Ranch
2004 Ford F-150 FX4
2004 Ford F-150 STX
2004 Ford F-150 Heritage SVT Lightning
2004 Ford F-150 Heritage XL
2004 Ford F-150 Heritage XLT
1997-1999 Ford F-250 Base
1997-1999 Ford F-250 Lariat
1997-1999 Ford F-250 XL
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty XLT
1999-2004 Ford F-350 Super Duty Lariat
2003-2004 Ford F-350 Super Duty King Ranch

Product Details

Product Description

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Power Up Your Ford Truck

Get more out of your 1997-2004 Ford F-150 or Expedition with the BBK Lightweight Billet Aluminum Underdrive Pulley Kit. Specifically designed for 4.6L and 5.4L engines, these pulleys reduce the energy required to drive your engine accessories. This efficiency gain translates into an average of 8-15 additional horsepower, giving your truck better towing capability and acceleration.

Durability Meets Performance

Manufactured from high-quality billet aluminum via CNC machining, these pulleys are built to withstand the rigors of daily driving and heavy-duty use. Their lightweight design minimizes rotating mass, which helps the engine rev more freely. The kit is a direct bolt-on replacement, meaning you don't have to worry about complex modifications.

  • Compatible with 97-04 Ford F-150, F-250, and Expedition
  • Increases horsepower and torque output
  • Lightweight CNC-machined billet aluminum
  • Retains full cooling and charging system functionality

This kit is the perfect way to enhance your truck's performance without sacrificing reliability. It integrates perfectly with your existing serpentine belt system, making it an ideal upgrade for both work trucks and performance builds. Trust in the quality of BBK products to help you get the most out of your Ford engine. Shop with confidence at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2003 Ford Expedition Eddie Bauer
1997-2003 Ford Expedition XLT
1997-2000 Ford F-150 Base
1997-2004 Ford F-150 Lariat
1997-2004 Ford F-150 XL
1997-2004 Ford F-150 XLT
2000-2003 Ford F-150 Harley-Davidson Edition
2001-2003 Ford F-150 King Ranch
2004 Ford F-150 FX4
2004 Ford F-150 STX
2004 Ford F-150 Heritage SVT Lightning
2004 Ford F-150 Heritage XL
2004 Ford F-150 Heritage XLT
1997-1999 Ford F-250 Base
1997-1999 Ford F-250 Lariat
1997-1999 Ford F-250 XL
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty XLT
1999-2004 Ford F-350 Super Duty Lariat
2003-2004 Ford F-350 Super Duty King Ranch

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