Machine description: Mack MP8 6 Cylinder 12.8 L Diesel 505 hp Engine, 2018 US EPA Label, Engine Coolant Heater, Engine Brake, Mack mDrive Automatic Transmission, Differential Lock, 6600 kg Front Axle, 20000 kg Rears, 2660... more info about the 2019 Mack GR64BT.