Used 12 Speed Trucks with Cummins Engines For Sale in United States

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Featured Item

27 1

2022 Peterbilt 579 Sleeper Semi Truck

$79,900 USD

2022 Peterbilt 579 – Road Ready and Fleet Friendly! Stock1272928, Looking for late-model trucks that are driver-preferred and ready to roll? Check out our 2022 Peterbilt 579 units, built...

Quantity	6
Condition	Used
Usage	424,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Unibilt
Sleeper Size	80"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	1272928
MLS Number	13503970
Category	Sleeper Semi Trucks
Last Updated	7/19/2025
Location	Atlanta, GA, US
Sold By	Rush Truck Centers Atlanta

(541) 480-___ SHOW
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Featured Item

32 0

2022 Peterbilt 579 Cab-over Sleeper With 53' Great Dane Trailer

$99,500 USD

This is a very nice one owner truck that has mostly traveled the I5 lane. It has been well maintained, with excellent tires 13,200 front axle and suspension with front air disc...

Condition	Used
Usage	331,517 Miles
Duty Class	Heavy Duty Cabover with Sleeper
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	UltraLoft
Sleeper Size	80"
MLS Number	13441176
Category	Cabover Sleepers
Last Updated	7/29/2025
Location	Eugene, OR, US
Sold By	Skyline Equipment Co.

(833) 695-___ SHOW
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Featured Item

26 0

2020 International LT625 Sleeper Semi Truck

$46,100 USD

Contact for rental/lease prices

Double Bunk Completely reconditioned,, ready for new owner . Cummins 15 litre auto trans double bunk Price includes 90 day 25,000 mile limited warrenty Lease or finance OAC

Warranty

Quantity	2
Condition	Used
Usage	416,439 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Double Bunk
Rear Axle	Tandem Axle
Stock Number	21450
MLS Number	12934384
Category	Sleeper Semi Trucks
Last Updated	7/28/2025
Location	Benicia, CA, US
Sold By	NorCal Truck Sales and Mfg.

28 0

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

Recently Updated

$69,500 USD

Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...

Condition	Used
Usage	554,397 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	599742
MLS Number	13584864
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Fontana, CA, US
Sold By	Penske Used Trucks

22 0

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

Recently Updated

$70,000 USD

Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...

Condition	Used
Usage	604,177 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	599737
MLS Number	13584863
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Las Vegas, NV, US
Sold By	Penske Used Trucks

18 0

2021 International LT625 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

Recently Updated

$34,250 USD

MANAGERS SPECIAL Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing;...

Condition	Used
Usage	478,681 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	371383
MLS Number	13584180
Category	Day Cab Semi Trucks
Last Updated	8/9/2025
Location	Conklin, NY, US
Sold By	Penske Used Trucks

(844) 307-___ SHOW
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1 0

2020 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Newly Listed

$49,500 USD

Sold As-Is. Meets trade terms from Major Fleet with strict maintenance schedule.

Inspection Report

Condition	Used
Usage	189,271 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	503387
MLS Number	13751280
Category	Day Cab Semi Trucks
Last Updated	8/9/2025
Location	Charlotte, NC, US
Sold By	International Motors, LLC

24 0

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

Newly Listed

$45,750 USD

Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...

Condition	Used
Usage	469,921 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	338948
MLS Number	13751166
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Macon, GA, US
Sold By	Penske Used Trucks

27 0

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

Price Drop

$33,250 USD

Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...

Condition	Used
Usage	666,516 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	291053
MLS Number	12583104
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Milwaukee, WI, US
Sold By	Penske Used Trucks

2 0

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

Newly Listed

Contact for price

Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...

Condition	Used
Usage	484,299 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	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	332729
MLS Number	13751139
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Tampa, FL, US
Sold By	Penske Used Trucks

(844) 216-___ SHOW
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29 1

2019 Peterbilt 579 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Recently Updated

$34,900 USD

671,000 Miles, Cummins X15 Engine, 500 H.P., Engine Brake, EEO-18F112C12 Transmission, (Automatic), 72 Inch Unibilt High Roof Sleeper, Upper Bunk, 40,000 Lb. Rear Ends, 2.79 Ratio, Low Air...

Condition	Used
Usage	671,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	618272
MLS Number	13603412
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(855) 717-___ SHOW
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33 1

2020 Freightliner M2 106 26 ft Box Truck - 240HP, 12 Speed Automatic, Liftgate

Recently Updated

$48,900 USD

** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** LIFT GATE, E-TRACKS Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! Disclaimer:, “All...

Condition	Used
Usage	164,914 Miles
Duty Class	Medium Duty Box Truck
Box Length	26 ft.
Horse Power	240 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Liftgate	Yes
Stock Number	N15026-DELIVERY 2 U
MLS Number	13594471
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	8/9/2025
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

32 0

2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 400HP, Amt

Recently Updated

$62,950 USD

FOR SALE: 2022 Kenworth T680 Sleeper Truck, Available now in OKC Ready to Work. Built to Perform. Priced to Move Upgrade your fleet with this well-maintained, high-spec 2022 Kenworth T680,...

Condition	Used
Usage	533,824 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	MO10359
MLS Number	13594106
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Oklahoma City, OK, US
Sold By	Michelle Sells Trucks

31 3

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop

$70,950 USD

2023 Peterbilt 579 Sleeper Truck - Low Miles, Ready to Roll!, For Sale at American Motors: This 2023 Peterbilt 579 80" Sleeper Truck is a top-tier choice for drivers and fleets looking for...

Condition	Used
Usage	407,776 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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO10334
MLS Number	13577040
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

31 3

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop

$70,950 USD

2023 Peterbilt 579 Sleeper Truck - Low Miles, Ready to Roll!, For Sale at American Motors: This 2023 Peterbilt 579 80" Sleeper Truck is a top-tier choice for drivers and fleets looking for...

Condition	Used
Usage	407,776 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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO10334
MLS Number	13577036
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Oklahoma City, OK, US
Sold By	Michelle Sells Trucks

31 3

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop

$70,950 USD

2023 Peterbilt 579 Sleeper Truck - Low Miles, Ready to Roll!, For Sale at American Motors: This 2023 Peterbilt 579 80" Sleeper Truck is a top-tier choice for drivers and fleets looking for...

Condition	Used
Usage	407,776 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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO10334
MLS Number	13577030
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

6 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Price Drop

$61,750 USD

**MAKE AN OFFER!** Used Kenworth T680 Sleeper for sale. Features: Espar Bunk Heater, Double Bunk, Refrigerator, Inverter, Smart Wheel, Power Locks and Windows, Heated Mirrors, Bug Shield,...

Condition	Used
Usage	383,104 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	Raised Roof Sleeper
Sleeper Size	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	393693T
MLS Number	11974136
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Swedesboro, NJ, US
Sold By	Coopersburg & Liberty Kenworth

6 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Price Drop

$61,950 USD

**MAKE AN OFFER!** Used Kenworth T680 Sleeper for sale. Features: Double Bunk, Refrigerator, Power Windows, Power Locks, Heated Mirrors, Espar Bunk Heater, and more. Visit Liberty Kenworth...

Condition	Used
Usage	364,306 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	Raised Roof Sleeper
Sleeper Size	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	347104T
MLS Number	11972026
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Swedesboro, NJ, US
Sold By	Coopersburg & Liberty Kenworth

(855) 642-___ SHOW
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12 0

2019 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$37,500 USD

**MAKE AN OFFER!** Used International ProStar Sleeper for sale. Features: Air Ride Cab, Espar Heater, Hood-mounted Spot Mirrors, Power Locks And Windows, Power Heated Mirrors, Smart Steering...

Condition	Used
Usage	8,462 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.64 ratio
Stock Number	22P135
MLS Number	11721191
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

(855) 642-___ SHOW
NUMBERCall Seller

12 0

2019 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$37,500 USD

**MAKE AN OFFER!** Used International ProStar Sleeper for sale. Features: Air Ride Cab, Espar Heater, Hood-mounted Spot Mirrors, Power Locks And Windows, Power Heated Mirrors, Smart Steering...

Condition	Used
Usage	11,061 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.64 ratio
Stock Number	22P132
MLS Number	11721189
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

(855) 642-___ SHOW
NUMBERCall Seller

12 0

2019 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Price Drop

$51,500 USD

**MAKE AN OFFER!** Used Kenworth T680 Sleeper for sale. Features: Air Ride Cab, Hood Spot Mirrors, Plastic Quarter Fenders, Power Locks and Windows, Tilt Steering Column, Air Ride Seats,...

Condition	Used
Usage	3,079 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	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	22P220
MLS Number	11538934
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

6 0

2019 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$37,500 USD

**MAKE AN OFFER!** Used International ProStar Sleeper for sale. Features: Air Ride Cab, Hood Spot Mirrors, Power Heated Mirrors, Power Locks and Windows, Tilt Steering Column, Smart Steering...

Condition	Used
Usage	387,971 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.64 ratio
Stock Number	22P131
MLS Number	11408429
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Swedesboro, NJ, US
Sold By	Coopersburg & Liberty Kenworth

6 0

2019 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

Price Drop

$37,500 USD

**MAKE AN OFFER!** Used International ProStar Sleeper for sale. Features: Air Ride Cab, Hood Spot Mirrors, Power Heated Mirrors, Power Locks and Windows, Tilt Steering Column, Smart Steering...

Condition	Used
Usage	390,407 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.64 ratio
Stock Number	22P129
MLS Number	11408413
Category	Sleeper Semi Trucks
Last Updated	8/9/2025
Location	Swedesboro, NJ, US
Sold By	Coopersburg & Liberty Kenworth