12 Speed Sleeper Semi Trucks with Cummins Engines, Air Ride Suspension For Sale

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

Newly Listed

$54,900 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	411,695 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	490832
MLS Number	14094698
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

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

Newly Listed

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Used 2023 International LT625 Sleeper Semi Truck for sale, 704,966 miles, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle,...

Condition	Used
Usage	704,966 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	UPP236290
MLS Number	14094694
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

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

Newly Listed

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Used 2023 International LT625 Sleeper Semi Truck for sale, 471,615 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	471,615 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	UPP236274
MLS Number	14094692
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Columbus, OH, US
Sold By	Penske Used Trucks

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

Recently Updated

$60,500 USD

Used 2023 International LT625 Sleeper Semi Truck, 526,311 miles, 450 HP Cummins X15 engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride suspension...

Condition	Used
Usage	526,453 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	UPP236265
MLS Number	14044104
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Sparks, NV, US
Sold By	Penske Used Trucks

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

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Used 2023 International LT625 Sleeper Semi Truck for sale, 672,327 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	672,327 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	UPS235816
MLS Number	14094688
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

2024 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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Used 2024 International LT625 Sleeper Semi Truck for sale, 440,111 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	440,111 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	UPS235783
MLS Number	14094685
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

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

Newly Listed

$61,750 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 511,277 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	511,277 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	UPP236108
MLS Number	14094680
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Fontana, CA, US
Sold By	Penske Used Trucks

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

Newly Listed

$49,000 USD

Used 2023 International LT625 Sleeper Semi Truck with 73" Integral Sleeper, Cummins X15 450HP engine, Eaton 12-speed automatic transmission, tandem rear axle, air ride suspension, 610,292...

Condition	Used
Usage	610,292 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	UPP235916
MLS Number	14094676
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Greensboro, NC, US
Sold By	Penske Used Trucks

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

Price Drop $43,250 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 575,147 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	575,148 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	599740
MLS Number	13582417
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Louisville, KY, US
Sold By	Penske Used Trucks

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

Newly Listed

$59,000 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 450,657 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	450,657 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	UPP235108
MLS Number	14094610
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	North Bergen, NJ, US
Sold By	Penske Used Trucks

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

Recently Updated

$40,750 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 547,386 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	587,265 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	387495
MLS Number	13885403
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Kansas City, MO, US
Sold By	Penske Used Trucks

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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Used 2020 International LT625 Sleeper Semi Truck, 442,451 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	442,451 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	359610
MLS Number	12666739
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Carson, CA, US
Sold By	Penske Used Trucks

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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Used 2020 International LT625 Sleeper Semi Truck for sale, 407,985 miles, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle,...

Condition	Used
Usage	407,985 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	354285
MLS Number	14094165
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Chicopee, MA, US
Sold By	Penske Used Trucks

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$30,750 USD

Used 2020 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	612,193 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	338158
MLS Number	14094130
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Sterling, VA, US
Sold By	Penske Used Trucks

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

Price Drop $26,750 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	737,441 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	1/16/2026
Location	Kansas City, MO, US
Sold By	Penske Used Trucks

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

Recently Updated

$42,000 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	393,443 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	1/16/2026
Location	Essex, MD, US
Sold By	Penske Used Trucks

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2022 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop $50,000 USD

TK APU, New Virgin Drives,

Condition	Used
Usage	436,695 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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	454520
MLS Number	13401048
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Idaho Falls, ID, US
Sold By	Dad's Truck and Trailer Sales

(855) 717-___ SHOW
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2021 International LT Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated

$49,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, AUTOMATIC 12SPD!!! DEF, DIESEL, VIRGIN TIRES, FULL FAIRINGS, ENGINE BRAKES, 450HP!!! Se Habla Español! NO CREDIT? BAD CREDIT?...

Condition	Used
Usage	521,809 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	N14789-DELIVERY 2 U
MLS Number	13327358
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

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

Newly Listed

$59,900 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	356,043 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	490828
MLS Number	14092387
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

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

Newly Listed

$48,250 USD

Used 2023 International LT625 Sleeper Semi Truck, 618,806 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	618,806 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	UPS235769
MLS Number	14092381
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Dallas, TX, US
Sold By	Penske Used Trucks

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

Recently Updated

$61,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 466,345 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	466,345 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	UPP236077
MLS Number	14044100
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Fresno, CA, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 470HP, 12 Speed Automatic

Recently Updated

$69,750 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 571,173 miles, 470 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 72" integral sleeper, tandem rear...

Condition	Used
Usage	583,202 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	199199
MLS Number	14016277
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Anaheim, CA, US
Sold By	Penske Used Trucks

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

Recently Updated

$48,500 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 555,401 miles, Cummins X15 diesel engine with 450 HP, 73" integral sleeper, 12-speed Eaton automatic transmission, tandem rear axle...

Condition	Used
Usage	555,426 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	454894
MLS Number	14015960
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$82,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 237,315 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 72" integral sleeper, tandem rear axle...

Condition	Used
Usage	237,315 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	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	382292
MLS Number	14092124
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Richland, MS, US
Sold By	Penske Used Trucks