View 23 Photos View 0 Videos 2021 Freightliner Cascadia 126 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic Newly Listed $43,750 USD Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 598,424 miles, 505HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, single rear axle,... ConditionUsedUsage598,424 MilesDuty ClassHeavy Duty Sleeper Semi TruckHorse Power505 HPEngine ModelDD15ATTransmission12 Speed AutomaticSleeper TypeIntegral SleeperSleeper Size72"SuspensionAir RideRear AxleSingle AxleRear End20,000 lb 3.08 ratioStock Number378639 MLS Number14069667CategorySleeper Semi Trucks Last Updated1/7/2026 LocationLancaster, PA, US Sold ByPenske Used Trucks (855) 942-___ SHOWNUMBERCall Seller Email Seller Save More Info