26 Mar 2014 Peterbilt 389 $79,995 Posted at 19:54h in For Sale by troy_admin Share 2014 Peterbilt 389 Cummins ISX15 600 HP 465,000 miles (Rebuilt 100,000 miles ago) 18 Speed (Rebuilt 5,000 miles ago) 13,200# Front 40,000# Rear 280″ wheel base Tags: 18 Speed, 600 HP, Cummins ISX, Peterbilt 389, Tag axle