Sometimes there are multiple alternators for 1 application. Please view the pictures to identify the alternator that fits your vehicle.
Ford Alternators Explained| F Series (6.0D)* | 6G (Small Frame) | F Series (6.0D)** | 6G (Small Frame) | 6G Large Frame | 4G | |
| 2003 | 8306 | 2003 | 8307 (top) | 8308 (bottom) | ||
| 2004 | 8306 | 2004 | 8307 (top) | 8308 (bottom) | ||
| 2005 | 8479 | 2005 | 8478( top) | 8308 (bottom) | ||
| 2006 | 8479 | 2006 | 8478( top) | 8478( top) Check On this | ||
| 2007 | 8479 | 2007 | 8478( top) | 8478( top) Check On this | ||
| *single alt system | ** 2 alt. system | |||||
| * non ambulance type | ** ambulatory type |