| Model | Ani | kW | CP | Capacitate |
|---|---|---|---|---|
| HARLEY-DAVIDSON FAT BOY 1340 Fat Boy | 1990-01-01 - | 33 kW | 45 CP | 1338 cm3 |
| HARLEY-DAVIDSON FAT BOY 1340 Fat Boy | 1990-01-01 - 1993-12-01 | 36 kW | 49 CP | 1338 cm3 |
| HARLEY-DAVIDSON FAT BOY 1340 Fat Boy | 1990-01-01 - 2000-12-01 | 41 kW | 56 CP | 1338 cm3 |
| HARLEY-DAVIDSON FAT BOY 1450 Fat Boy | 1999-01-01 - 2002-12-01 | 46 kW | 63 CP | 1449 cm3 |
| HARLEY-DAVIDSON FAT BOY 1450 Fat Boy | 2003-11-01 - 2006-12-01 | 47 kW | 64 CP | 1449 cm3 |
| HARLEY-DAVIDSON FAT BOY 1450 Fat Boy | 1999-01-01 - 2002-12-01 | 47 kW | 64 CP | 1449 cm3 |
| HARLEY-DAVIDSON FAT BOY 1600 Fat Boy | 2006-08-01 - | 54 kW | 73 CP | 1584 cm3 |
| HARLEY-DAVIDSON FAT BOY 1600 Fat Boy Special | 2009-08-01 - 2011-12-01 | 56 kW | 76 CP | 1584 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy | 2011-08-01 - 2013-12-01 | 58 kW | 79 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy Special (FLSTFB) | 2011-08-01 - 2013-12-01 | 58 kW | 79 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy (FLSTF) | 2011-01-01 - | 24 kW | 33 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy Special (FLSTFB) | 2011-01-01 - | 24 kW | 33 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy (FLSTFSE) | 2005-01-01 - 2006-12-01 | 50 kW | 68 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy (FLSTFSE) | 2005-01-01 - | 48 kW | 65 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1450 Fat Boy (FS2) | 2003-11-01 - 2006-12-01 | 24 kW | 33 CP | 1449 cm3 |
| HARLEY-DAVIDSON FAT BOY 1600 Fat Boy (FS2) | 2006-08-01 - 2011-12-01 | 24 kW | 33 CP | 1584 cm3 |
| HARLEY-DAVIDSON FAT BOY 1600 Fat Boy (FS2) | 2009-08-01 - 2011-12-01 | 56 kW | 76 CP | 1584 cm3 |
| HARLEY-DAVIDSON FAT BOY 1800 Fat Boy S (FLSTFBS) | 2016-01-01 - | 68 kW | 92 CP | 1801 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy Special (FLSTFB) | 2016-09-01 - | 55 kW | 75 CP | 1690 cm3 |
| HARLEY-DAVIDSON FAT BOY 1700 Fat Boy | 2016-09-01 - | 55 kW | 75 CP | 1690 cm3 |