* 4.8L V8: Approximately 285 hp
* 5.3L V8: Approximately 295 hp (this was likely the most common)
* 6.0L V8 (in the Yukon XL 1500 Denali): Approximately 325 hp
To know the exact horsepower of a specific 2004 GMC Yukon, you'd need to check the vehicle's identification number (VIN) or the vehicle's documentation.