This Motorcraft Fuel Tank Cap fits your 2003 Ford E-550 Super Duty 7.3L V8 and is perfect for a tune up or performance upgrade. .
Genuine Motorcraft Fuel Tank Cap FC-1058
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Motorcraft Fuel Tank Cap for 1999-2008 Ford F-350 Super Duty 5.4L 6.0L 6.4L wt
