Used 12 Speed Tandem Axle Sleeper Semi Trucks For Sale

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2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Newly Listed

Contact for price

445779 Miles, 12051 Hours, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Overdrive, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof...

Condition	Used
Usage	12,051 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	1733
MLS Number	14271504
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

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2020 Western Star 5700XE Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated

$64,900 USD

Well spec'd 5700XE setup for the open road. 505HP DD15 and well appointed inside. Deep rubber!,

Condition	Used
Usage	314,075 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
Stock Number	7210
MLS Number	14157390
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

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

Price Drop $50,500 USD

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	594,423 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	3/27/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

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

Recently Updated

$32,250 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 805,355 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	805,379 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	356793
MLS Number	13907128
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

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

Recently Updated

$67,900 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced efficiency, modern technology and driver focused comfort, making it...

Condition	Used
Usage	512,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	2266
MLS Number	13707427
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Phoenix, AZ, US
Sold By	TCI Transportation

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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

Newly Listed

$79,900 USD

315993 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, Drive: 6x4, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Wheel Base: 229, Tandem Rear Axles, Front Axle Weight: 13220...

Condition	Used
Usage	315,993 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	268330
MLS Number	14268958
Category	Sleeper Semi Trucks
Last Updated	3/26/2026
Location	Tampa, FL, US
Sold By	Southport Truck Group

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$69,900 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced performance, modern technology and driver-focused comfort, making it...

Condition	Used
Usage	512,652 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
Stock Number	2626
MLS Number	13944364
Category	Sleeper Semi Trucks
Last Updated	3/26/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

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

Price Drop $61,000 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	434,662 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	3/26/2026
Location	Tacoma, WA, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated

$69,000 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its refined efficiency, advanced technology and driver focused comfort, making it...

Condition	Used
Usage	11,751 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Rear Axle	Tandem Axle
Stock Number	2599
MLS Number	13720478
Category	Sleeper Semi Trucks
Last Updated	3/26/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

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2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins, Amt

Newly Listed

Contact for price

Cummins power late model 2024s with remaining factory extended warranty. NAP,

Condition	Used
Usage	342,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	7254
MLS Number	14265123
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(844) 624-___ SHOW
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2023 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Amt

Recently Updated

$104,950 USD

2023 Freightliner Cascadia 126 Sleeper – Detroit DD15 505 HP, DT12 Automatic, 72” Raised Roof Double Bunk, 192K Miles This 2023 Freightliner Cascadia 126 is a well-maintained, Class 8...

Condition	Used
Usage	192,279 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	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	MO11105
MLS Number	14245862
Category	Sleeper Semi Trucks
Last Updated	3/25/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

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

Recently Updated

$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	3/27/2026
Location	Tuscaloosa, AL, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

Contact for price

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its strong Detroit diesel powertrain aerodynamic design and driver‑focused...

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	3/24/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$67,900 USD

2022 model year with strong service and maintenance history, Spacious Cascadia 126 sleeper cab ideal for long haul comfort, Efficient high torque engine providing reliable highway...

Condition	Used
Usage	466,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2599
MLS Number	14149633
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$67,900 USD

2022 model with low miles and proven reliability, Comfortable Cascadia 126 sleeper cab built for long hauls, Fuel-efficient powerful engine ready for heavy loads, Advanced safety tech...

Condition	Used
Usage	466,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2599
MLS Number	14078054
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

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

Recently Updated

Contact for price

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its robust performance, aerodynamic efficiency and modern driver comfort, making...

Condition	Used
Usage	512,354 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
Stock Number	2626
MLS Number	14070071
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$99,900 USD

The 2019 Freightliner Cascadia 126 is a highly regarded used Class 8 highway tractor that stands out for its powerful drivetrains, aerodynamic design, driver comfort, and advanced safety...

Condition	Used
Usage	293,452 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	23483
MLS Number	13703265
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$69,900 USD

The 2022 Freightliner Cascadia 126 is a popular Class 8 highway tractor in the used truck market, prized for its powerful Detroit diesel engine options, aerodynamic efficiency, and modern...

Condition	Used
Usage	512,652 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
Stock Number	2626
MLS Number	13703252
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

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2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 510HP, 12 Speed Endurant Amt

Price Drop $99,900 USD

190794 Miles, Engine: PACCAR MX-13, 510 HP, 12 Speed Endurant AMT Transmission, Drive: 6x4, Pete Low Air Leaf Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 80, Wheels:...

Condition	Used
Usage	190,794 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	257111
MLS Number	14142764
Category	Sleeper Semi Trucks
Last Updated	3/21/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

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

Price Drop $52,000 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	474,208 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	3/25/2026
Location	Clackamas, OR, US
Sold By	Penske Used Trucks

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

Price Drop $61,750 USD

Used 2024 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 601,804 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	604,212 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	207059
MLS Number	14100140
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Medley, FL, US
Sold By	Penske Used Trucks

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

Price Drop $54,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 464,523 miles, 505HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	464,524 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	367612
MLS Number	14256784
Category	Sleeper Semi Trucks
Last Updated	3/22/2026
Location	Evansville, IN, US
Sold By	Penske Used Trucks

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

Price Drop $81,750 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	411,952 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	3/27/2026
Location	Laredo, TX, 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

$75,995 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	3/19/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet