6.0L V8 Drive Belt is a direct fit for the following:

2003-2007 Ford F-250 Super Duty
2003-2007 Ford F-350 Super Duty
2003-2007 Ford F-450 Super Duty
2003-2007 Ford F-550 Super Duty
6.0L V8 Only

Genuine Ford Part Number: 3C3Z-8620-DB