A cracked fuel filter cap can lead to air in the fuel system. That can result in hard starting or potential fuel injector issues. A cracked fuel filter cap can also cause a fuel leak, which is definitely a bad idea on a hot engine. Never worry about that again with a Sinister Diesel Fuel Filter Cap. Constructed from a single solid aluminum billet, the Sinister Diesel Fuel Filter Cap is far stronger than the OEM plastic cap. It's anodized in Sinister Blue for corrosion resistance and features a 1/8th" NPT port for testing fuel pressure., Features:Impervious to cracking like the OEM fuel filter cap, CNC Machined from solid aluminum billet, Features a 1/8th" NPT port for fuel pressure testingIncludes:(1) Sinister Diesel Fuel Filter Cap, (1) O-Ring

This Part Fits:

Year	Make	Model	Submodel
2004-2005	Ford	E-350 Club Wagon	Chateau
2004-2005	Ford	E-350 Club Wagon	XL
2004-2005	Ford	E-350 Club Wagon	XLT
2004-2007	Ford	E-350 Super Duty	Base
2006-2007	Ford	E-350 Super Duty	XL
2006-2007	Ford	E-350 Super Duty	XLT
2004-2007	Ford	E-450 Super Duty	Base
2004-2005	Ford	Excursion	Eddie Bauer
2004-2005	Ford	Excursion	Limited
2004-2005	Ford	Excursion	XLS
2004-2005	Ford	Excursion	XLT
2004-2007	Ford	F-250 Super Duty	Harley-Davidson Edition
2004-2007	Ford	F-250 Super Duty	King Ranch
2003-2007	Ford	F-250 Super Duty	Lariat
2003-2007	Ford	F-250 Super Duty	XL
2003-2007	Ford	F-250 Super Duty	XLT
2004-2007	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2007	Ford	F-350 Super Duty	King Ranch
2003-2007	Ford	F-350 Super Duty	Lariat
2003-2007	Ford	F-350 Super Duty	XL
2003-2007	Ford	F-350 Super Duty	XLT
2004-2007	Ford	F-450 Super Duty	Lariat
2004-2007	Ford	F-450 Super Duty	XL
2004-2007	Ford	F-450 Super Duty	XLT
2004-2007	Ford	F-550 Super Duty	Lariat
2004-2007	Ford	F-550 Super Duty	XL
2004-2007	Ford	F-550 Super Duty	XLT