Sometimes there are multiple alternators for 1 application. Please view the pictures to identify the alternator that fits your vehicle.
Ford Alternators Explained| E Series (5.4) | 3G Small Frame | 3G Large Frame | 4G | 6G (Large Frame) |
| 1997 | 7790 | 7791 | ||
| 1998 | 7790 | 7791 | ||
| 1999 | 7790 | 7791 | ||
| 2000 | 7790 | 7791 | ||
| 2001 | 7790 | 7791 | ||
| 2002 | 7790 | 7791 | ||
| 2003 | 7790 | 7791 | ||
| 2004 | 7790 | 7791 | ||
| 2005 | 7790 | 7791 | ||
| 2006 | 7791 | 8473 | ||
| 2007 | 7791 | 8473 | ||
| 2008 | 7791 | 8473 |