12 Speed Sleeper Semi Trucks with Cummins Engines For Sale

(844) 624-___ SHOW
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30 0

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

$82,950 USD

MULTIPLE MATCHING VIRGIN DRIVE TIRES, DIESEL APU, 2022 Kenworth T680 with 450HP Cummins X15 and Endurant 12-speed automatic. 76" raised roof double bunk sleeper with refrigerator, work desk,...

Condition	Used
Usage	275,000 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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MOSTOCK22
MLS Number	14025125
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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30 0

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

$82,950 USD

MULTIPLE MATCHING VIRGIN DRIVE TIRES, DIESEL APU, 2022 Kenworth T680 with 450HP Cummins X15 and Endurant 12-speed automatic. 76" raised roof double bunk sleeper with refrigerator, work desk,...

Condition	Used
Usage	275,000 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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	COSTOCK22
MLS Number	14025124
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

22 0

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

$54,750 USD

Used 2022 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension, 230...

Condition	Used
Usage	449,557 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	387503
MLS Number	14024889
Category	Sleeper Semi Trucks
Last Updated	12/11/2025
Location	Harahan, LA, US
Sold By	Penske Used Trucks

(844) 900-___ SHOW
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57 1

2023 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$72,900 USD

***8 NEW TIRES!!!*** *** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, AUTOMATIC!!!, ENGINE BRAKE, LIQUID DEF, AIR RIDE, TC, NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A...

Condition	Used
Usage	455,032 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	2.85 ratio
Stock Number	L01626-8 NEW TIRES
MLS Number	14023671
Category	Sleeper Semi Trucks
Last Updated	12/13/2025
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(844) 955-___ SHOW
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15 0

2024 Peterbilt 579 Sleeper Semi Truck - Cummins 500HP, 12 Speed Automatic

$112,750 USD

Only 195,000 Original Miles ~ Cummins X15 ~ 500 HP ~ 12 Speed Automatic ~ Only One Owner ~ Cummins Warranty through 3/13/26 or 250K miles ~ Financing Available with Your Good Credit,

Condition	Used
Usage	195,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	837309
MLS Number	13679862
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	Olive Branch, MS, US
Sold By	Truck Market

23 0

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

$51,750 USD

Used 2023 International LT625 Sleeper Semi Truck featuring a 73" integral sleeper, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, tandem rear axle, 13200 lb...

Condition	Used
Usage	617,245 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	UPP236104
MLS Number	14021296
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Fontana, CA, US
Sold By	Penske Used Trucks

(855) 591-___ SHOW
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32 0

2024 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$99,900 USD

2024 Kenworth T680 Next Gen – 1 Owner, Fleet Maintained Next Gen Kenworth!, This is one CLEAN truck—came all the way from Tennessee! , 450 HP Cummins X15 engine, , 12-speed Eaton Endurant...

Condition	Used
Usage	5,137 Hours
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
Stock Number	369197
MLS Number	14020292
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(716) 218-___ SHOW
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10 0

2021 Peterbilt 579 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 450HP, 12 Speed Amt

$49,900 USD

CUMMINS X15 450 HP,12 SPD AUTO TRANS,12500 FRT, 40K RR,2.93 RATIO,LOW AIR LEAF SUSP,ALUM WHKS 72" SLEEPER,,

Condition	Used
Usage	529,714 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	72"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.93 ratio
Stock Number	228785
MLS Number	13857950
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Buffalo, NY, US
Sold By	Hunter Truck

(844) 823-___ SHOW
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1 0

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

$62,500 USD

1 or 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of 700+ Locations

Inspection Report

Condition	Used
Usage	388,675 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	505310
MLS Number	14018600
Category	Sleeper Semi Trucks
Last Updated	12/5/2025
Location	Shreveport, LA, US
Sold By	International Motors, LLC

23 0

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

$39,250 USD

Used 2020 International LT625 Sleeper Semi Truck, Integral Sleeper, Cummins X15 450HP Diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension, 497,150...

Condition	Used
Usage	497,150 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	62019
MLS Number	14016488
Category	Sleeper Semi Trucks
Last Updated	12/4/2025
Location	Melrose Park, IL, US
Sold By	Penske Used Trucks

23 0

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

$39,000 USD

Used 2020 International LT625 Sleeper Semi Truck for sale, 552,177 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension,...

Condition	Used
Usage	552,177 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	62018
MLS Number	13868460
Category	Sleeper Semi Trucks
Last Updated	12/17/2025
Location	Greensboro, NC, US
Sold By	Penske Used Trucks

21 0

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

$36,000 USD

Used 2021 International LT625 Sleeper Semi Truck with Integral Sleeper, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension, 531,902...

Condition	Used
Usage	531,902 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	20499
MLS Number	13478537
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	Carlisle, PA, US
Sold By	Penske Used Trucks

24 0

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

Price Drop

$54,750 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 518,942 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, 280...

Condition	Used
Usage	518,942 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	UPP236412
MLS Number	14016370
Category	Sleeper Semi Trucks
Last Updated	12/28/2025
Location	Byron Center, MI, US
Sold By	Penske Used Trucks

23 0

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

$38,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 751,269 miles, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper. Check it out today.

Condition	Used
Usage	751,269 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	UPP236226
MLS Number	14016359
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

23 0

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

$38,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 757,975 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	757,975 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	UPP236225
MLS Number	14016351
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

23 0

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

$42,750 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 685,670 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	685,670 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	UPS235771
MLS Number	14016323
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Dallas, TX, US
Sold By	Penske Used Trucks

24 0

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

Price Drop

$42,500 USD

Used 2023 International LT625 Sleeper Semi Truck, 683,920 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, 28,200...

Condition	Used
Usage	683,920 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	UPS235770
MLS Number	14016321
Category	Sleeper Semi Trucks
Last Updated	12/25/2025
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

23 0

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

Price Drop

$42,500 USD

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

Condition	Used
Usage	653,912 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	UPS235762
MLS Number	14016319
Category	Sleeper Semi Trucks
Last Updated	12/17/2025
Location	Bensalem, PA, US
Sold By	Penske Used Trucks

23 0

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

$40,500 USD

Used 2023 International LT625 Sleeper Semi Truck, 676,518 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	676,518 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	UPS235731
MLS Number	14016317
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks

23 0

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

$52,250 USD

Used 2023 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	550,883 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	UPS235730
MLS Number	14016315
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks

23 0

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

Price Drop

$38,500 USD

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

Condition	Used
Usage	721,721 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	UPS235729
MLS Number	14016314
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks

23 0

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

$51,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 565,036 miles, 450 HP Cummins X15 engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	565,036 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	UPS235728
MLS Number	14016312
Category	Sleeper Semi Trucks
Last Updated	12/10/2025
Location	Lexington, KY, US
Sold By	Penske Used Trucks

23 0

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

$40,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 675,974 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle. See...

Condition	Used
Usage	675,974 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	UPS235727
MLS Number	14016308
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks

23 0

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

$42,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 661,180 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, tandem rear axle, 73" integral sleeper...

Condition	Used
Usage	661,180 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	UPS235726
MLS Number	14016306
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	Louisville, KY, US
Sold By	Penske Used Trucks