388, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Cummins , , 2012 PETERBILT 388 CONVENTIONAL 48" FLAT TOP SLEEPER CUMMINS 500HP (323K MILES ON TRUCK, 127K MILES ON NEW MOTOR SWAP) ELECTRONICALLY VERIFIABLE UPGRADED FROM THE 450 HP CUMMINS TO THE NEW 500 HP CUMMINS IN 2014 10-SPEED RANGER HI-LO DUAL EXHAUST DUAL STAINLESS BREATHERS AIR SUSPENSION INTEGRATED P.T.O. SLIDING 5TH WHEEL 13,200 LB FRONT AXLE TANDEM 20,000 REARS STAINLESS 120 GALLON FUEL TANKS REMOTE LUBE SYSTEM 24.5" ALCOAS 30% RUBBER TRUCK IS IN OUTSTANDING CONDITION INSIDE AND OUT JUST SERVICED AND ROAD READY, 500 Horse Power, Suspension, Wheels, Wheel Base, , Tandem Axle, Ratio, 48 Flat Top Sleeper