12 Speed Sleeper Semi Trucks For Sale

601 - 625 of 3,190 listings

22 0

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

Price Drop

$49,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 595,132 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, 22,300 lbs...

Condition	Used
Usage	595,206 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	334559
MLS Number	14014667
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Alexandria, VA, US
Sold By	Penske Used Trucks

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24 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, 487,859 miles, 400 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	487,860 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	EPES21191
MLS Number	14014505
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Greensboro, NC, US
Sold By	Penske Used Trucks

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23 0

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

$65,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 371,055 miles, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	379,096 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	373505
MLS Number	13717080
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Franklin, MA, US
Sold By	Penske Used Trucks

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23 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 475HP, 12 Speed Automatic

Price Drop

$37,500 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 475HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, 240-gallon fuel capacity, tandem...

Condition	Used
Usage	747,201 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 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	367352
MLS Number	14051790
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Milwaukee, WI, US
Sold By	Penske Used Trucks

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26 0

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

$58,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 562,080 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	562,080 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	360394
MLS Number	14051788
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Jackson, MS, US
Sold By	Penske Used Trucks

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26 0

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

Price Drop

$52,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 600,003 miles, 455 HP DD15AT engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle, air...

Condition	Used
Usage	600,003 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	360392
MLS Number	14051787
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Jackson, MS, US
Sold By	Penske Used Trucks

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23 0

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

$59,250 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 478,551 miles, 72" integral sleeper, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	478,551 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	360195
MLS Number	14024768
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Anderson, SC, US
Sold By	Penske Used Trucks

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23 0

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

$73,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 260,126 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 60" integral sleeper, tandem rear axle,...

Condition	Used
Usage	260,127 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	352793
MLS Number	13907123
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

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25 0

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

$73,250 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck with 60" integral sleeper, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	342,944 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	352275
MLS Number	13857310
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Oklahoma City, OK, US
Sold By	Penske Used Trucks

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26 0

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

Price Drop

$63,250 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	458,570 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	12/28/2025
Location	Clackamas, OR, US
Sold By	Penske Used Trucks

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28 0

2020 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$56,750 USD

Used 2020 Freightliner Cascadia 125 Sleeper Semi Truck for sale, 471,724 miles, 450HP DD13 diesel engine, 72" integral sleeper, 12-speed automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	471,793 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 3.23 ratio
Stock Number	350028
MLS Number	13857306
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Waxahachie, TX, US
Sold By	Penske Used Trucks

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28 0

2020 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$47,750 USD

Used 2020 Freightliner Cascadia 125 Sleeper Semi Truck for sale, 585,281 miles, 450HP DD13 diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	585,281 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 3.23 ratio
Stock Number	350027
MLS Number	13857305
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Waxahachie, TX, US
Sold By	Penske Used Trucks

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23 0

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

$44,250 USD

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

Condition	Used
Usage	702,689 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	308198
MLS Number	13879308
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Moberly, MO, US
Sold By	Penske Used Trucks

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23 0

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

Price Drop

$49,500 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 614,691 miles, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	615,208 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	308192
MLS Number	13865129
Category	Sleeper Semi Trucks
Last Updated	12/31/2025
Location	Moberly, MO, US
Sold By	Penske Used Trucks

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32 0

2020 International LT Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 400HP, 12 Speed Automatic

Price Drop

$34,950 USD

For Sale: 2020 International LT Sleeper Equipped with a 400hp Cummins X15, 12-Speed Automatic Transmission, 72” Raised Roof Double Bunk Sleeper, Dual Sleeper Windows, Hood Mirrors, Full...

Condition	Used
Usage	476,010 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	CO10785
MLS Number	13852500
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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34 0

2020 Kenworth T680 Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

$55,495 USD

2020 Kenworth T680 – Teal, Automatic, and Super Clean Just in! This 2020 Kenworth T680 is a great starter truck or fleet addition — powered by a Cummins ISX 450HP paired with a 12-speed...

Condition	Used
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX450
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14927C
MLS Number	13852473
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(833) 478-___ SHOW
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29 4

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$63,950 USD

Take a look at this 2022 Kenworth T880 powered by a Cummins X15 rated at 450 HP and paired with an Endurant 12-speed automated transmission with a 2.85 ratio, set up for efficient highway...

Condition	Used
Usage	484,747 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	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10775
MLS Number	13852454
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

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29 4

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$63,950 USD

Take a look at this 2022 Kenworth T880 powered by a Cummins X15 rated at 450 HP and paired with an Endurant 12-speed automated transmission with a 2.85 ratio, set up for efficient highway...

Condition	Used
Usage	484,747 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	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10775
MLS Number	13852453
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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10 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$53,950 USD

N.A.P. New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Alum Wheels, Well Maintained Fleet Truck, Oil...

Condition	Used
Usage	484,303 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 2.41 ratio
Stock Number	3562
MLS Number	13850376
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

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23 0

2019 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$32,750 USD

Used 2019 International LT625 Sleeper Semi Truck for sale, 725,870 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	727,597 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	332753
MLS Number	14013540
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Kansas City, MO, US
Sold By	Penske Used Trucks

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23 0

2019 Volvo VNR64640 Sleeper Semi Truck - 61" Integral Sleeper, 425HP, 12 Speed Automatic

Price Drop

$37,750 USD

Used 2019 Volvo VNR64640 Sleeper Semi Truck for sale, 592,902 miles, 425HP D13 diesel engine, 12-speed automatic transmission, 61" integral sleeper, tandem rear axle, air ride suspension,...

Condition	Used
Usage	592,902 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	61"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	268871
MLS Number	14051535
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Orlando, FL, US
Sold By	Penske Used Trucks

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22 0

2019 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Price Drop

$42,250 USD

Used 2019 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	388,368 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	332624
MLS Number	14051527
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Essex, MD, US
Sold By	Penske Used Trucks

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23 0

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

$54,500 USD

Used 2019 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 481,833 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	482,876 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	235666
MLS Number	13876455
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Belcamp, MD, US
Sold By	Penske Used Trucks

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23 0

2019 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$44,500 USD

Used 2019 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	375,102 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
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	332411
MLS Number	13775004
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Mebane, NC, US
Sold By	Penske Used Trucks

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21 0

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

$52,750 USD

Used 2019 Freightliner Cascadia 125 Sleeper Semi Truck, 472,339 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	472,339 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	226789
MLS Number	14051521
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Greeley, CO, US
Sold By	Penske Used Trucks

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