The 2008 Dodge Durango came with a few different engine options, so the horsepower varied. You'll need to specify which engine was in the Durango to get the exact horsepower. The options included:
* 4.7L PowerTech V8: This engine produced around 230-235 horsepower.
* 5.7L Hemi V8: This engine produced around 360 horsepower.
Therefore, there's no single answer to your question.