Used 12 Speed Tandem Axle Sleeper Semi Trucks For Sale

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Tri State Truck Center - Springfield, MO

Featured Item

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$109,950 USD

2023 Freightliner Cascadia 126 Sleeper – Detroit DD15 450 HP, DT12 Automatic, 76” Raised Roof Double Bunk, 191K Miles This 2023 Freightliner Cascadia 126 is a well-maintained, Class 8...

Condition	Used
Usage	191,443 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
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	14109181
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

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2020 International LT625 Sleeper Semi Truck - 72" Condo Sleeper, 450HP, 12 Speed Automatic

$42,460 USD

Condition	Used
Usage	510,203 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	X15 GHG'17 450/1800
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	240123
MLS Number	14073797
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Springfield, MA, US
Sold By	Ryder

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2019 Peterbilt 579 Sleeper Semi Truck - 80" Mid Roof Sleeper, Paccar 455HP, 12 Speed Endurant Automatic

$32,950 USD

AVAILABLE FOR SALE: 2019 PETERBILT 579 SLEEPER IN KANSAS CITY, MO WAITING FOR INSPECTION AND DETAIL.. FUEL-EFFICIENT, DRIVER-FOCUSED, AND READY TO WORK!!! CALL AMERICAN TRUCK CENTERS FOR...

Condition	Used
Usage	538,858 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MO11032
MLS Number	14064737
Category	Sleeper Semi Trucks
Last Updated	1/30/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

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2024 Kenworth T680 Sleeper Semi Truck - 52" Mid Roof Sleeper, Paccar 510HP, 12 Speed Endurant Automatic

$89,950 USD

This 2024 Kenworth T680 comes with a remaining 6 year / 600,000 mile PACCAR Premium Warranty, giving owner operators and fleets rare long-term protection on the engine and aftertreatment...

Condition	Used
Usage	120,165 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	52"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	CO11033
MLS Number	14053873
Category	Sleeper Semi Trucks
Last Updated	1/30/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(833) 490-___ SHOW
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Featured Item

2021 International LT625 Sleeper, Affordable, Cummins X15 450hp, Dot Passing, Fresh Detail, Warranty Options , Zero Down Financing (WAC)

$39,950 USD

Grab this road-ready 2021 International LT before it’s gone—low-mileage Cummins X15 450HP powerhouse, butter-smooth 12-speed automatic, 215 WB, 2.79 rears with massive 200-gallon fuel...

Warranty

Quantity	13
Condition	Used
Usage	497,005 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	56"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.00 ratio
Stock Number	U066841
MLS Number	13999606
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

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Featured Item

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

$43,000 USD

Condition	Used
Usage	943,871 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'21 455/1500
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	569523
MLS Number	14042329
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Kearny, NJ, US
Sold By	Ryder

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Featured Item

2023 Freightliner Cascadia 126 Sleeper, New Drive Tires, FACTORY WARRANTY REMAINING , Cummins X15 Engine , 500HP !!! Fridge , Apu , Financing

$62,950 USD

For sale: a powerhouse 2023 Freightliner Cascadia with just 488,000 well-maintained miles, ready to tackle your heaviest hauls! Powered by the legendary Cummins X15 500HP engine paired with...

Warranty

Condition	Used
Usage	488,847 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	UUG1661
MLS Number	13999600
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

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

Recently Updated

$56,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension,...

Condition	Used
Usage	529,888 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 2.85 ratio
Stock Number	409867
MLS Number	13789030
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Millville, NJ, US
Sold By	Penske Used Trucks

2022 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, 450HP, 12 Speed Automatic

Recently Updated

$39,500 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 441,600 miles, 450 HP A26 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	451,557 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	A26
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	407463
MLS Number	14015631
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Corona, CA, US
Sold By	Penske Used Trucks

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

Recently Updated

$60,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 566,380 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	574,395 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	403698
MLS Number	14077962
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Newly Listed

$57,995 USD

2021 FREIGHTLINER CASCADIA 126, DETORIT DD15, DETROIT DT12 AUTOMATIC TRANSMISSION, 537,644 MILES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	537,644 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	3342
MLS Number	14142908
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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

Newly Listed

$39,995 USD

2020 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 704,148 MILES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	704,148 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	9648
MLS Number	14142907
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Newly Listed

$56,900 USD

2022 Kenworth T680 Next Gen – 1 Owner, Fleet Maintained Next Gen T680!, This is a very CLEAN and NICE truck—well equipped and ready to work! , 450 HP Cummins X15 engine, , 12-speed Eaton...

Condition	Used
Usage	446,960 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.64 ratio
Stock Number	490811
MLS Number	14142847
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

2022 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$77,500 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 481,423 miles, 455 HP D13 diesel engine, 12-speed automatic transmission, 70" integral sleeper, tandem rear axle, 22.5" tires. Check it...

Condition	Used
Usage	481,423 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	386988
MLS Number	14142814
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Oklahoma City, OK, US
Sold By	Penske Used Trucks

2022 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated

$59,750 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 518,809 miles, 455HP D13 diesel engine, 12-speed automatic transmission, 70" integral sleeper, tandem rear axle, air ride suspension....

Condition	Used
Usage	518,810 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	386948
MLS Number	13907184
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Sterling, VA, US
Sold By	Penske Used Trucks

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2019 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Amt

Newly Listed

$36,900 USD

2019 Freightliner Cascadia 126 – Fleet Maintained New Body Style Cascadia!, Clean, well-equipped, and ready for the road! , 455 HP Detroit DD15 engine, , Detroit DT12 automatic transmission,...

Condition	Used
Usage	625,672 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	KP2085
MLS Number	14142804
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

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

Newly Listed

$102,900 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	2/13/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

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

Recently Updated

$60,500 USD

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

Condition	Used
Usage	462,471 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	EPES21284
MLS Number	14014956
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Greensboro, NC, US
Sold By	Penske Used Trucks

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

Newly Listed

$67,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 72" Integral Sleeper, 400HP DD15AT diesel engine, 12 speed Detroit automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	458,607 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	EPES21278
MLS Number	14142690
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Hueytown, AL, US
Sold By	Penske Used Trucks

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

Newly Listed

$44,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 690,208 miles, 455 HP DD15AT engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	690,208 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	363795
MLS Number	14142684
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Moberly, MO, US
Sold By	Penske Used Trucks

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

Recently Updated

$69,250 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 450,956 miles, 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	450,957 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	385521
MLS Number	14081678
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

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

Newly Listed

$89,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 320056 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	320,056 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	385291
MLS Number	14142656
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Arlington, TX, US
Sold By	Penske Used Trucks

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

Newly Listed

$60,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 629,600 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper. Come see today.

Condition	Used
Usage	629,600 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	384979
MLS Number	14142647
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Jurupa Valley, CA, US
Sold By	Penske Used Trucks

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2021 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$49,900 USD

433560 Miles, Engine: PACCAR MX-13, 455 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	433,560 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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	233530
MLS Number	14142640
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck