387, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Cummins ISX, 10 Spd, USED 2007 Peterbilt 387 double bunk sleeper with a Cummins ISX for sale in Meridian, MS., 450 Horse Power, Air Ride Suspension, All Steel Wheels, Wheel Base, LP 24.5, Single Axle, Ratio, 73 Raised Roof Sleeper