12 Speed Automated Trucks with Cummins Engines For Sale

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1-25 of 357 results
1-25 of 357 results
Featured Item
2023 International LT ***500k MILE WARRANTY ***
29 1

2023 International LT ***500k MILE WARRANTY ***

$74,830 USD
*FACTORY 500K MILE WARRANTY ON ENGINE CUMMINS X15 450 HP EATON ENDURANT 12SPEED AUTO NEW STEER TIRES NEW FILTERS/FLUIDS 100 GAL ALUMINUM FUEL TANKS BENDIX COLLISION SYSTEM 187IN...
Warranty
ConditionUsed
Usage89,350 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Rear AxleTandem Axle
MLS Number13661630
CategoryDay Cab Semi Trucks
Last Updated6/23/2025
Location
FYFFE, AL, US
Sold By

Hill Automotive

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed
2 0

2021 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed

Recently Updated
$52,900 USD
APU, Cummins X1512 Speed AutomatedDouble Bunk Sleeper
Inspection Report
ConditionUsed
Usage474,882 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.85 ratio
Stock Number502208
MLS Number13644309
CategorySleeper Semi Trucks
Last Updated7/12/2025
Location
La Vergne, TN, US
Sold By

International Motors, LLC

Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
4 0

2021 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Newly Listed
$49,950 USD
N.A.P.,Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Well Maintained Fleet Truck, Oil Changed Every 35K Miles,
ConditionUsed
Usage446,591 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock Number3588
MLS Number13696479
CategorySleeper Semi Trucks
Last Updated7/11/2025
Location
GRANGER, IA, US
Sold By

Barr-Nunn Transportation LLC

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
30 0

2019 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Recently Updated
$37,500 USD
Inspection Report
ConditionUsed
Usage385,257 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number502847
MLS Number13621588
CategoryDay Cab Semi Trucks
Last Updated7/11/2025
Location
Shreveport, LA, US
Sold By

International Motors, LLC

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
7 0

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

Recently Updated
$33,000 USD
AS IS - SPECIAL Cummins X15New Domestic TiresAuto Transmission
Inspection Report
ConditionUsed
Usage448,461 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number502436
MLS Number13571137
CategoryDay Cab Semi Trucks
Last Updated7/11/2025
Location
Indianapolis, IN, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
1 0

2021 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Recently Updated
$54,500 USD
Inspection Report
ConditionUsed
Usage399,238 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear End20,000 lb 2.79 ratio
Stock Number499917
MLS Number13576591
CategorySleeper Semi Trucks
Last Updated7/12/2025
Location
Joliet, IL, US
Sold By

International Motors, LLC

International LT625 4x2 Day Cab Truck - Cummins 450HP, 12 Speed
1 0

2022 International LT625 4x2 Day Cab Truck - Cummins 450HP, 12 Speed

Recently Updated
$65,500 USD
Inspection Report
ConditionUsed
Usage148,458 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain4x2
Transmission12 Speed Automated
SuspensionAir Ride
Rear End20,000 lb 2.87 ratio
Stock Number502102
MLS Number13659620
CategoryDay Cab Semi Trucks
Last Updated7/11/2025
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

International LT625 4x2 Day Cab Truck - Cummins 450HP, 12 Speed
1 0

2022 International LT625 4x2 Day Cab Truck - Cummins 450HP, 12 Speed

Recently Updated
$65,500 USD
Inspection Report
ConditionUsed
Usage130,906 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain4x2
Transmission12 Speed Automated
SuspensionAir Ride
Rear End20,000 lb 2.87 ratio
Stock Number502098
MLS Number13659619
CategoryDay Cab Semi Trucks
Last Updated7/11/2025
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
4 0

2021 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop
$49,950 USD
N.A.P.,Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Well Maintained Fleet Truck, Oil Changed Every 35K Miles,
ConditionUsed
Usage484,489 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock Number3604
MLS Number13633089
CategorySleeper Semi Trucks
Last Updated7/11/2025
Location
GRANGER, IA, US
Sold By

Barr-Nunn Transportation LLC

Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
16 0

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

Price Drop
$68,900 USD
X15 Cummins, TK APU, New Virgin Drives, 5 Year 500k Factory EATS,
ConditionUsed
Usage425,440 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number454528
MLS Number13401053
CategorySleeper Semi Trucks
Last Updated7/12/2025
Location
Idaho Falls, ID, US
Sold By

Dad's Truck and Trailer Sales

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
5 0

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

Newly Listed
$22,000 USD
NICE TRUCK, RUNS GREAT, CLEAN, WELL MAINTAINED, DUAL AIR RIDE SEAT, DIFFERENTIAL LOCK, DUMP VALVE, SLINDING 5TH WHEEL, POWER WINDOWS, POWER DOOR LOCKS, SMART WHEEL, FULL GAUGE PACKAGE!,
ConditionUsed
Usage774,995 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock Number19X15774T680
MLS Number13693753
CategorySleeper Semi Trucks
Last Updated7/10/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed
33 0

2021 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed

Recently Updated
$69,000 USD
NEW Worry-Free Program AVAILABLE � 1 OR 2-Year Factory-Backed Engine Aftertreatment Warranty + Extended Vehicle Coverage Preventive Maintenance Service AVAILABLE. $0 Deductible. No Claim...
Inspection Report
ConditionUsed
Usage301,748 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.85 ratio
Stock Number500943
MLS Number13372177
CategorySleeper Semi Trucks
Last Updated7/11/2025
Location
Etna, OH, US
Sold By

International Motors, LLC

International LT Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
32 0

2020 International LT Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Newly Listed
$39,900 USD
2020 International LT625 – 1 Owner, Fleet Maintained Cummins Powered X15!, This is one powerful long-hauler! , 450 HP Cummins X15 engine, , 12-speed Eaton Endurant automatic transmission, , ...
ConditionUsed
Usage467,836 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number843885
MLS Number13693377
CategorySleeper Semi Trucks
Last Updated7/10/2025
Location
Byron Center, MI, US
Sold By

5 Star Truck Sales, Inc

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed
33 0

2021 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed

Recently Updated
$64,500 USD
Inspection Report
ConditionUsed
Usage388,664 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.85 ratio
Stock Number500593
MLS Number13412980
CategorySleeper Semi Trucks
Last Updated7/11/2025
Location
Conley, GA, US
Sold By

International Motors, LLC

2022 Peterbilt 579 Sleeper Semi Truck
16 1

2022 Peterbilt 579 Sleeper Semi Truck

Price Drop
$79,900 USD
2022 Peterbilt 579 – 80" Ultraloft Sleeper, X15 Power, Thermo King APU, Stock #1285170 This 2022 Peterbilt 579 is spec’d for comfort and efficiency with a strong focus on uptime and fuel...
Quantity6
ConditionUsed
Usage342,314 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number1285170
MLS Number13540092
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2022 Peterbilt 579 Sleeper Semi Truck (Multiples Available)
23 1

2022 Peterbilt 579 Sleeper Semi Truck (Multiples Available)

Price Drop
$74,900 USD
2022 Peterbilt 579 – 80" Ultraloft Sleeper, X15 Power, Thermo King APU Stock #1271561 This 2022 Peterbilt 579 is spec’d for comfort and efficiency with a strong focus on uptime and fuel...
Quantity6
ConditionUsed
Usage427,300 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins ISX
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionFlex Air
Rear AxleTandem Axle
Rear End2.79 ratio
Stock Number1271561
MLS Number13523900
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2022 Peterbilt 579 Sleeper Semi Truck
27 1

2022 Peterbilt 579 Sleeper Semi Truck

Price Drop
$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...
Quantity6
ConditionUsed
Usage424,000 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUnibilt
Sleeper Size80"
SuspensionFlex Air
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number1272928
MLS Number13503970
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2022 Peterbilt 579 Sleeper Semi Truck
16 1

2022 Peterbilt 579 Sleeper Semi Truck

Price Drop
$69,900 USD
Stock 1273416 2022 Pete 579 Multiples available but they are moving quickly. 4 left. Cummins X15 Eaton Endurant 80" Ultra Loft double Bunk APU Fleet maintained and well spec'd. milage is 562...
Quantity4
ConditionUsed
Usage562,335 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins ISX
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionAir Leaf
Rear AxleTandem Axle
Stock Number1273416
MLS Number13523439
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2022 Peterbilt 579 Sleeper Semi Truck
18 2

2022 Peterbilt 579 Sleeper Semi Truck

Price Drop
$79,900 USD
New Body-style Peterbilt 579 Ultraloft Sleeper Discover the ultimate long haul truck that combines power, comfort, and state-of-the-art technology. This new body style Peterbilt 579...
ConditionUsed
Usage361,000 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number1314335
MLS Number13415006
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2019 Peterbilt 579 Sleeper Semi Truck Only 456k
21 1

2019 Peterbilt 579 Sleeper Semi Truck Only 456k

Recently Updated
$49,750 USD
2019 Peterbilt 579 Ultraloft – Cummins Powered – Priced to Move Stock 1000993 Fresh arrival—this 2019 Peterbilt 579 Ultraloft just landed and is headed straight for detail and service....
ConditionUsed
Usage456,000 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
Stock Number1000993
MLS Number13526578
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

2020 International LT625 Day Cab Truck
22 1

2020 International LT625 Day Cab Truck

Price Drop
$43,500 USD
2020 International LT625 Daycab – Cummins X15 – Freshly Serviced Stock 1798436 This 2020 International LT625 Daycab is fleet-ready and built for performance. Powered by a 400HP Cummins X15...
Quantity2
ConditionUsed
Usage374,966 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15, Signature
Drivetrain6x4
Transmission12 Speed Endurant Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.79 ratio
Stock Number1798436
MLS Number13527792
CategoryDay Cab Semi Trucks
Last Updated7/9/2025
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
33 0

2021 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Recently Updated
$53,000 USD
Manager�s Special!This unit has been fully inspected and professionally serviced. It qualifies for our exclusive 60-Day Truck Protection Promise, giving you added confidence and peace of...
Inspection Report
ConditionUsed
Usage423,879 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear End20,000 lb 2.79 ratio
Stock Number499325
MLS Number13503783
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
40 1

2019 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop
$45,900 USD
504,110 Miles, Cummins X15 Engine, 450 H.P Engine Brake, Eaton Automatic Transmission, 80 Inch Ultra-Loft Sleeper, Upper Bunk, 40,000 Lb. Rear Ends, 2.79 Ratio, Air Ride Suspension,...
ConditionUsed
Usage504,110 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number633351
MLS Number13677996
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
29 1

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

Price Drop
$47,000 USD
Se habla español, 540k Miles, Many Available!, X15 – 450HP, 12 Speed Eaton Auto, Double bunk Condo, Aluminum wheels, Battery APU, Nice Rubber, Air Slide 5th Wheel, ParkSmart APU, Workstation...
ConditionUsed
Usage540,870 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number399372
MLS Number13601260
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Peterbilt 579 Sleeper Semi Truck - Cummins 450HP, Automatic
40 1

2019 Peterbilt 579 Sleeper Semi Truck - Cummins 450HP, Automatic

Price Drop
$45,900 USD
504,110 Miles, Cummins X15 Engine, 450 H.P Engine Brake, Eaton Automatic Transmission, 80 Inch Ultra-Loft Sleeper, Upper Bunk, 40,000 Lb. Rear Ends, 2.79 Ratio, Air Ride Suspension,...
ConditionUsed
Usage504,110 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number633351
MLS Number13586555
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

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