12 Speed Sleeper Semi Trucks with Cummins Engines For Sale

1 0

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

Newly Listed

$59,995 USD

***Our End-of-Year Sale is here — save up to $3,500 off on select trucks until December 31!*** FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED CREDIT, FIRST TIME...

Condition	Used
Usage	435,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2450
MLS Number	14054734
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

24 0

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated

$45,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 617,081 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	617,081 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 2.64 ratio
Stock Number	UPP235995
MLS Number	14033442
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Piqua, OH, US
Sold By	Penske Used Trucks

41 0

2021 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Recently Updated

$69,995 USD

***Our End-of-Year Sale is here — save up to $3,500 off on select trucks until December 31!*** 2021 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 369,558 MILES, FLEET MAINTAINED ...

Condition	Used
Usage	369,558 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	5997
MLS Number	13985515
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

36 0

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

Recently Updated

$79,995 USD

***Our End-of-Year Sale is here — save up to $3,500 off on select trucks until December 31!***, 2022 KENWORTH T680 NEXT GEN, CUMMINS X15, AUTOMATIC TRANSMISSION, 389,117 MILES, FLEET...

Condition	Used
Usage	389,117 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	5100
MLS Number	13985494
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(855) 807-___ SHOW
NUMBERCall Seller

60 0

2015 Peterbilt 579 ARI Sleeper Semi Truck - Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Recently Updated

$69,500 USD

2015 PETERBILT 579 WITH CUSTOM 108" ARI SLEEPER, OVERHAUL PAPERWORK,CUMMINS, NEW REARS, REW ROOF AIR, NEW DPF SYSTEM, ISX POWERED, EATON AUTO TRANSMISSION, CUMMINS ONAN GENERATOR, POWER...

Condition	Used
Usage	1,398,737 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	108"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	7055
MLS Number	13749860
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

36 0

2023 International LT Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated

$67,995 USD

***Our End-of-Year Sale is here — save up to $3,500 off on select trucks until December 31!***, 2023 INTERNATIONAL LT, CUMMINS X15, AUTOMATIC TRANSMISSION, 282,878 MILES, FLEET...

Condition	Used
Usage	282,878 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	2827
MLS Number	13683498
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

43 0

2022 Kenworth T680 Sleeper Semi Truck - Cummins 450HP, 12 Speed Endurant Automatic

Price Drop

$77,995 USD

***Our End-of-Year Sale is here — save up to $3,500 off on select trucks until December 31!*** 2022 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 378,279 MILES, FLEET MAINTAINED ...

Condition	Used
Usage	348,279 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	5077
MLS Number	14029224
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

28 0

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$57,250 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 572,538 miles, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle....

Condition	Used
Usage	572,538 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	489553
MLS Number	14053590
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	San Diego, CA, US
Sold By	Penske Used Trucks

23 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 470HP, 12 Speed Automatic

Recently Updated

$72,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck, 72" integral sleeper, Cummins X15 diesel engine with 470 HP, 12-speed Eaton automatic transmission, tandem rear axle. Come see today.

Condition	Used
Usage	508,472 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	470 HP
Engine Model	Cummins X15
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	429661
MLS Number	14015818
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Torrance, CA, US
Sold By	Penske Used Trucks

(844) 307-___ SHOW
NUMBERCall Seller

1 0

2022 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 12 Speed

Newly Listed

$62,500 USD

Inspection Report

Condition	Used
Usage	385,614 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.64 ratio
Stock Number	505314
MLS Number	14053534
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	International Motors, LLC

2 0

2022 International LT625 Sleeper Semi Truck - 56" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Price Drop

$73,000 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 335,875 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 56" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	357,299 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	56"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.21 ratio
Stock Number	427071
MLS Number	13603838
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Jacksonville, FL, US
Sold By	Penske Used Trucks

32 4

2023 International LoneStar Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Recently Updated

$69,950 USD

AVAILABLE FOR SALE IN KANSAS CITY, MO. INSPECTED AND DETAILED. READY TO WORK!!!, *Remaining Warranty:, - Frame side rails - 7/1/2027, - Cab/Cowl Structure: 7/1/2027, - Cab/Cowl Perforation:...

Condition	Used
Usage	445,924 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MO10949
MLS Number	13993294
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

25 0

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

Recently Updated

$62,000 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 345,390 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	345,390 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 2.85 ratio
Stock Number	387508
MLS Number	13868257
Category	Sleeper Semi Trucks
Last Updated	12/21/2025
Location	Cranbury, NJ, US
Sold By	Penske Used Trucks

24 0

2021 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$42,250 USD

Used 2021 International LT625 Sleeper Semi Truck for sale, 521,251 miles, 450 HP Cummins X15 diesel engine, 73" integral sleeper, 12-speed Eaton automatic transmission, tandem rear axle, air...

Condition	Used
Usage	521,251 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	372092
MLS Number	14053312
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks

29 3

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

Recently Updated

$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	486,123 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
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	CO10782
MLS Number	14040629
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

31 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! Thermo King APU!! Fridge! Inverter! Double Bunk! Bunk Heater! Heated Mirrors! 450HP Cummins! Automatic! Call American Motors Commerce City...

Condition	Used
Usage	10,768 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10761
MLS Number	13825430
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

31 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! Thermo King APU!! Fridge! Inverter! Double Bunk! Bunk Heater! Heated Mirrors! 450HP Cummins! Automatic! Call American Motors Commerce City...

Condition	Used
Usage	10,768 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10761
MLS Number	13825429
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(866) 579-___ SHOW
NUMBERCall Seller

32 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! Tri Pac APU! Engine Brakes! Fridge! Inverter! 450HP Cummins! Automatic! Sliding 5th Wheel! Double Bunk! Heated Mirrors! USB Ports!...

Condition	Used
Usage	481,324 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10759
MLS Number	13825426
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

32 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! Tri Pac APU! Engine Brakes! Fridge! Inverter! 450HP Cummins! Automatic! Sliding 5th Wheel! Double Bunk! Heated Mirrors! USB Ports!...

Condition	Used
Usage	481,324 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10759
MLS Number	13825423
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

33 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! APU! Engine Brakes! Fridge! Inverter! 450HP Cummins! Automatic! Sliding 5th Wheel! Double Bunk! Heated Mirrors! USB Ports! Collision...

Condition	Used
Usage	485,274 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10758
MLS Number	13825422
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

33 1

2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$42,950 USD

NEW BRAKES AND ROTORS!!! Walmart Fleet Maintained!! APU! Engine Brakes! Fridge! Inverter! 450HP Cummins! Automatic! Sliding 5th Wheel! Double Bunk! Heated Mirrors! USB Ports! Collision...

Condition	Used
Usage	485,274 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10758
MLS Number	13825420
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

23 0

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

Recently Updated

$55,750 USD

Used 2019 International LT625 Sleeper Semi Truck for sale, 253,715 miles, Cummins 450HP X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	253,715 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	332655
MLS Number	14040578
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Greeley, CO, US
Sold By	Penske Used Trucks

24 0

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$45,000 USD

Used 2023 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins X15 450HP diesel engine, Eaton 12-speed automatic transmission, tandem rear axle, air ride suspension, 280...

Condition	Used
Usage	629,069 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 2.64 ratio
Stock Number	UPS235713
MLS Number	14051865
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Londonderry, NH, US
Sold By	Penske Used Trucks

23 0

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$44,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 643,620 miles, 73" integral sleeper, Cummins X15 450HP diesel engine, Eaton 12-speed automatic transmission, tandem rear axle, air...

Condition	Used
Usage	643,620 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 2.64 ratio
Stock Number	UPP236070
MLS Number	14051863
Category	Sleeper Semi Trucks
Last Updated	12/19/2025
Location	Jacksonville, FL, US
Sold By	Penske Used Trucks