View 23 Photos View 0 Videos 2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic $56,500 USD Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 518,461 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,... ConditionUsedUsage518,479 MilesDuty ClassHeavy Duty Sleeper Semi TruckHorse Power455 HPEngine ModelDD15ATTransmission12 Speed AutomaticSleeper TypeIntegral SleeperSleeper Size72"SuspensionAir RideRear AxleTandem AxleRear End40,000 lb 3.08 ratioStock Number387608 MLS Number13905659CategorySleeper Semi Trucks Last Updated1/25/2026 LocationCarrollton, TX, US Sold ByPenske Used Trucks (855) 942-___ SHOWNUMBERCall Seller Email Seller Save More Info