BBK 97-04 Ford F150 Expedition 4.6 5.4 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc)

Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.
Installation Instructions
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Installation Instructions


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Year	Make	Model	Submodel
1997-2003	Ford	Expedition	Eddie Bauer
1997-2003	Ford	Expedition	XLT
1997-2000	Ford	F-150	Base
2004	Ford	F-150	FX4
2000-2003	Ford	F-150	Harley-Davidson Edition
2001-2003	Ford	F-150	King Ranch
1997-2004	Ford	F-150	Lariat
1999-2003	Ford	F-150	Lightning