2024 Peterbilt 548, PACCAR, PX-9, 350HP, Allison 6 Speed Transmission, Day Cab, Roll-Off, Amrep, Stock # 1710571 2024 Peterbilt 548 with Amrep Roll off installed READY TO GO!!! This truck has a PACCAR PX-9 Engine with an Allison RDS 6 speed auto Transmission. The GVW for this truck is 66,000lbs. If you would like to have some more information, please contact our Rush Truck Centers Fontana Medium Duty locations New Truck Sales Department. Contact number: 909-829-2200