23 0 2020 Mack Granite GU533 Flatbed Truck - 350HP, 6 Speed Automatic Newly Listed $76,000 USD Used 2020 Mack Granite GU533 Flatbed Truck for sale, 134,483 miles, Cummins L9 350HP diesel engine, 6-speed Allison automatic transmission, heavy-duty single rear axle, 90-gallon fuel... ConditionUsedUsage134,483 MilesDuty ClassHeavy Duty Flatbed TruckHorse Power350 HPEngine ModelCummins L9Transmission6 Speed AutomaticRear AxleSingle AxleRear End40,000 lbStock Number718621 MLS Number14062765CategoryFlatbed Trucks Last Updated12/27/2025 LocationNorth Fond Du Lac, WI, US Sold ByPenske Used Trucks (855) 942-___ SHOWNUMBERCall Seller Email Seller Save More Info