Used Freightliner 12 Speed Cascadia Sleeper Semi Trucks For Sale

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Newly Listed

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Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 505 HP DD15AT engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, 240 gal fuel capacity, air...

Condition	Used
Usage	594,401 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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	369887
MLS Number	14245737
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Newly Listed

$43,250 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 659,800 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	659,800 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	362682
MLS Number	14245705
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Rothschild, WI, US
Sold By	Penske Used Trucks

(323) 712-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Newly Listed

Contact for price

hard to find low mileage sleeper

Condition	Used
Usage	443,772 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	#2628
MLS Number	14244609
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

(844) 216-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Amt

Recently Updated

$52,000 USD

8 brand new tires, 571,812 Miles, DD15 Detroit, 400 HP bumped up to 505hp, DT12 Automated, APU, Collision Mitigation, 40k Rears, 2.28 Ratio, Air Ride, Deer Guard, Side Fairings, Quarter...

Condition	Used
Usage	571,812 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	LH5106
MLS Number	13712690
Category	Sleeper Semi Trucks
Last Updated	3/13/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(844) 748-___ SHOW
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2016 Freightliner Cascadia 125 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 505HP, 12 Speed Amt

Price Drop $14,000 USD

2016 Freightliner Cascadia 125 Sleeper - 731,922 Miles, Detroit DD15, Automated 12 Speed, Air Ride Suspension, 76" Raised Roof Sleeper, Call With Further Questions.

Condition	Used
Usage	731,922 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	20,000 lb
Stock Number	HH5962
MLS Number	13537755
Category	Sleeper Semi Trucks
Last Updated	3/13/2026
Location	Lancaster, CA, US
Sold By	TFS Recovery, Inc.

(866) 314-___ SHOW
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2019 Freightliner Cascadia 125 Sleeper Semi Truck - Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$13,000 USD

engine locked up, clean interior and body, good tires, auto,

Condition	Used
Usage	710,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	10807
MLS Number	14129332
Category	Sleeper Semi Trucks
Last Updated	3/12/2026
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

2021 Freightliner T12664ST Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Recently Updated

$42,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, and 250-gallon fuel...

Condition	Used
Usage	708,530 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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	379735
MLS Number	12397129
Category	Sleeper Semi Trucks
Last Updated	3/12/2026
Location	New Castle, DE, US
Sold By	Penske Used Trucks

(833) 300-___ SHOW
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2017 Freightliner Cascadia 125 Sleeper Semi Truck - 62" Mid Roof Sleeper, Detroit 505HP, 12 Speed Automatic

Recently Updated

$59,900 USD

Stock NumberC-32984, Year2017, ManufacturerFREIGHTLINER, ModelCASCADIA 125, ConditionUsed, Mileage768,892 mi, VIN1FUJGLDR8HLHX7641, Engine, Horsepower505 HP, Engine ManufacturerDETROIT,...

Condition	Used
Usage	768,892 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	62"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	C-32984
MLS Number	11611217
Category	Sleeper Semi Trucks
Last Updated	3/12/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$59,750 USD

Used 2024 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 748,754 miles, DD15AT diesel engine, 505 HP, 12-speed automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	749,513 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 2.85 ratio
Stock Number	207055
MLS Number	14117050
Category	Sleeper Semi Trucks
Last Updated	3/13/2026
Location	Colorado Springs, CO, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$85,500 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 406,289 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	409,261 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 2.85 ratio
Stock Number	466585
MLS Number	14145108
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Laredo, TX, US
Sold By	Penske Used Trucks

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$56,500 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 458,570 miles, 505 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	461,962 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	352006
MLS Number	13800796
Category	Sleeper Semi Trucks
Last Updated	3/12/2026
Location	Clackamas, OR, US
Sold By	Penske Used Trucks

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$39,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 758,851 miles, 505 HP DD15AT engine, 72" integral sleeper, 12-speed automatic Detroit transmission, tandem rear axle, air...

Condition	Used
Usage	758,851 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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	289989
MLS Number	14230984
Category	Sleeper Semi Trucks
Last Updated	3/8/2026
Location	Fontana, CA, US
Sold By	Penske Used Trucks

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Price Drop $63,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 420,214 miles, 505 HP DD15AT engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	429,370 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	280832
MLS Number	14013634
Category	Sleeper Semi Trucks
Last Updated	3/8/2026
Location	Tacoma, WA, US
Sold By	Penske Used Trucks

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2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$73,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15, 505 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 412,134 MILES, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	412,134 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	2812
MLS Number	14229254
Category	Sleeper Semi Trucks
Last Updated	3/7/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 748-___ SHOW
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2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

Contact for price

542097 Miles, 15266 Hours, Engine: CUMMINS X15, 500 HP, Fuel Type: Diesel, 12 Speed Endurant AMT Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper...

Condition	Used
Usage	15,266 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Emission Rating	USA Tier 4 Final
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LH4050
MLS Number	14229146
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Caledonia, WI, US
Sold By	TFS Recovery, Inc.

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$78,250 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 402,495 miles, 505 HP DD15AT diesel engine, 12-speed automatic transmission by Detroit, 72" integral sleeper, tandem rear...

Condition	Used
Usage	402,496 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 2.85 ratio
Stock Number	432240
MLS Number	14167085
Category	Sleeper Semi Trucks
Last Updated	3/14/2026
Location	Tuscaloosa, AL, US
Sold By	Penske Used Trucks

2020 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$44,250 USD

Used 2020 Freightliner Cascadia 125 Sleeper Semi Truck for sale, 586,061 miles, 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	586,181 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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	289368
MLS Number	14013874
Category	Sleeper Semi Trucks
Last Updated	3/13/2026
Location	Montgomery, NY, US
Sold By	Penske Used Trucks

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2023 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$79,995 USD

2023 FREIGHTLINER CASCADIA 126, DETROIT DD15, GEN 5 / 505 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 398,457 MILES, 240 GALLONS FUEL TANKS, UNDER FACTORY WARRANTY, FLEET MAINTAINED...

Condition	Used
Usage	398,457 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	6634
MLS Number	14172583
Category	Sleeper Semi Trucks
Last Updated	2/28/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$66,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 505HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension,...

Condition	Used
Usage	449,788 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	457245
MLS Number	13854164
Category	Sleeper Semi Trucks
Last Updated	2/28/2026
Location	Columbia, TN, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 505HP, 12 Speed Automatic

Price Drop $44,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 620,107 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 60" integral sleeper, tandem rear axle,...

Condition	Used
Usage	620,107 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.25 ratio
Stock Number	368231
MLS Number	14170427
Category	Sleeper Semi Trucks
Last Updated	3/7/2026
Location	Davenport, IA, US
Sold By	Penske Used Trucks

(833) 490-___ SHOW
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2025 Freightliner Cascadia Sleeper Semi Truck, 89,000 MILES!!! 505HP , Next Gen , Financing Available , Trades Welcome , Call Today !!!!!@

$152,995 USD

Seize this incredible opportunity on a nearly new 2025 Freightliner Cascadia sleeper that's primed for profitable long-haul runs—with only 89,294 miles on the clock, it's in exceptional...

Warranty

Condition	Used
Usage	89,254 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	UWF1523
MLS Number	14167357
Category	Sleeper Semi Trucks
Last Updated	2/27/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(844) 321-___ SHOW
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Tri State Truck Center - Springfield, MO

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$97,900 USD

Balance of Detroit Diesel 5 Year/500K Mile Major Components (PARTS ONLY) Warranty and 5 Year/750K Mile Basic Transmission Warranty In Service: 01/30/2024,

Condition	Used
Usage	9,879 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	1723
MLS Number	14147951
Category	Sleeper Semi Trucks
Last Updated	2/27/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(844) 321-___ SHOW
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2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$99,900 USD

Balance of Detroit Diesel 2y/999999 ml BASIC ENGINE Warranty and 5 Year/750K Mile Basic Transmission Warranty, In Service: 06/30/2024,

Condition	Used
Usage	8,374 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	1720
MLS Number	14144654
Category	Sleeper Semi Trucks
Last Updated	2/28/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$64,995 USD

DETROIT DD15 / AUTOMATIC TRANSMISSION / APU / PTO / FLEET MAINTAINED / FINANCING AVAILABLE 2021 FREIGHTLINER CASCADIA 126, MID-ROOF XT SLEEPER, 428,111 MILES, DETORIT DD15 ENGINE, DETROIT...

Condition	Used
Usage	428,111 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	5778
MLS Number	13688194
Category	Sleeper Semi Trucks
Last Updated	2/27/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet