It should say on your door panel, but the 2007's curb weight is 5018 according to Yahoo! Autos.
Around 4200-4400 lbs
The Dodge Durango was introduced in 1998, therefore this question cannot be answered as is. However, the 1998 durango had a curb weight of 4689 lbs.
The 2012 Dodge Durango's engine produces 260 ft-lbs. @ 4800 rpm.
The 2007 Dodge Durango's engine produces 235 ft-lbs. @ 4000 rpm.
The 2014 Dodge Durango's engine produces 260 ft-lbs. @ 4800 rpm.
The 2001 Dodge Durango's engine produces 295 ft-lbs. @ 3200 rpm.
The 2011 Dodge Durango's engine produces 260 ft-lbs. @ 4800 rpm.
The 2009 Dodge Durango's engine produces 235 ft-lbs. @ 4000 rpm.
The 2002 Dodge Durango's engine produces 295 ft-lbs. @ 3200 rpm.
The 2004 Dodge Durango's engine produces 235 ft-lbs. @ 4000 rpm.
The 2013 Dodge Durango's engine produces 260 ft-lbs. @ 4800 rpm.
The 2005 Dodge Durango's engine produces 235 ft-lbs. @ 4000 rpm.