BBK 97-04 Ford F150 Expedition 4.6 5.4 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) - 15550

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.

This Part Fits:

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
2004	Ford	F-150	STX
1997-2004	Ford	F-150	XL
1997-2004	Ford	F-150	XLT
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
1997-1999	Ford	F-250	XLT
2004	Ford	F-250 Super Duty	King Ranch
1999-2004	Ford	F-250 Super Duty	Lariat
1999-2004	Ford	F-250 Super Duty	XL
1999-2004	Ford	F-250 Super Duty	XLT
2003-2004	Ford	F-350 Super Duty	King Ranch
1999-2004	Ford	F-350 Super Duty	Lariat
1999-2004	Ford	F-350 Super Duty	XL
1999-2004	Ford	F-350 Super Duty	XLT