Freightliner 12 Speed Sleeper Semi Trucks For Sale

24 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop

$46,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 635,456 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	635,456 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	387716
MLS Number	14031547
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Melrose Park, IL, US
Sold By	Penske Used Trucks

23 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$55,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck, 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, 229" wheelbase, tandem rear axle, 220-gal...

Condition	Used
Usage	611,374 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	394191
MLS Number	14015328
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

26 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop

$58,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 612,353 miles, 72" integral sleeper, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, tandem rear axle,...

Condition	Used
Usage	612,353 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	385348
MLS Number	13415631
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Springfield, MO, US
Sold By	Penske Used Trucks

24 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$55,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 684,823 miles, 72" integral sleeper, 455HP DD15AT engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	684,823 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	385329
MLS Number	14055784
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Fontana, CA, US
Sold By	Penske Used Trucks

23 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop

$60,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 503,109 miles, 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	506,082 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	385015
MLS Number	13581814
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Harrisburg, PA, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$60,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 529,779 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	546,148 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	334649
MLS Number	13881332
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	La Mirada, CA, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$52,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 575,201 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, air ride suspension...

Condition	Used
Usage	575,225 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	334592
MLS Number	13879382
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Braintree, MA, US
Sold By	Penske Used Trucks

25 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$51,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	621,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	369120
MLS Number	13879370
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Goldsboro, NC, US
Sold By	Penske Used Trucks

24 0

2021 Freightliner Cascadia 126 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

Price Drop

$58,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 379,614 miles, 450 HP DD13 diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, single rear axle,...

Condition	Used
Usage	379,617 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	23,000 lb 3.08 ratio
Stock Number	374532
MLS Number	13584209
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Lexington, SC, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop

$69,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 438,332 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem air ride...

Condition	Used
Usage	438,332 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21249
MLS Number	14014517
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop

$65,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 423,122 miles, 400HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission. Heavy duty, tandem...

Condition	Used
Usage	423,122 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21241
MLS Number	13717097
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Resaca, GA, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Recently Updated

$70,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 400HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, 200-gallon fuel capacity....

Condition	Used
Usage	415,008 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21235
MLS Number	13765033
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

24 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Recently Updated

$68,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 440,810 miles, 400 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	440,811 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21218
MLS Number	13865249
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Auburn, ME, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop

$66,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 459,698 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	459,700 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21211
MLS Number	13867811
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Recently Updated

$71,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 408,202 miles, 400HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	408,202 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21209
MLS Number	13779590
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

27 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop

$63,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 519,247 miles, 400HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	519,247 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21183
MLS Number	14014502
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Recently Updated

$73,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 380,503 miles, 400 HP DD15AT engine, 12-speed Detroit automatic transmission, 72" integral air ride sleeper, tandem rear axle...

Condition	Used
Usage	380,503 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21147
MLS Number	13765029
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop

$64,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 461,086 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	461,087 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21141
MLS Number	13644667
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 116 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

Price Drop

$44,250 USD

Used 2021 Freightliner Cascadia 116 Sleeper Semi Truck for sale, 689,732 miles, 450 HP DD13 diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	689,747 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	373892
MLS Number	14014496
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Duluth, GA, US
Sold By	Penske Used Trucks

23 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$45,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck, 686,356 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	686,356 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	364694
MLS Number	14055740
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Toledo, OH, US
Sold By	Penske Used Trucks

23 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$61,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 475,016 miles, 455HP DD15AT diesel engine, 12-speed automatic transmission, 60" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	475,016 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	352776
MLS Number	14055698
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Evansville, IN, US
Sold By	Penske Used Trucks

(855) 807-___ SHOW
NUMBERCall Seller

43 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Price Drop

$44,500 USD

CLEAN FLEET MAINTAINED FREIGHTLINER CASCADIA 126, DETROIT DD15,455HP, WITH 12 SPD AUTOMATIC,13,220 FAW, 40,000 # Rears! GREAT 22.5 RUBBER! AIRLINER SUSPENSION! THERMO KING APU! 72 INCH...

Condition	Used
Usage	526,342 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.23 ratio
Stock Number	7101
MLS Number	13788490
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

23 0

2019 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$58,750 USD

Used 2019 Freightliner Cascadia 125 Sleeper Semi Truck, 346,659 miles, 455HP DD15AT diesel engine, 72" integral sleeper, 12-speed automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	346,659 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	268790
MLS Number	14055565
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Garden City, GA, US
Sold By	Penske Used Trucks

24 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$50,500 USD

Used 2019 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 611,471 miles, 455 HP DD15AT engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	611,471 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	258288
MLS Number	13822472
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Piqua, OH, US
Sold By	Penske Used Trucks