12 Speed Trucks with Cummins Engines For Sale

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International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
23 0

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

Price Drop
$38,250 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;...
ConditionUsed
Usage580,307 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number338150
MLS Number13603519
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
East Chicago, IN, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
22 0

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

$39,000 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;...
ConditionUsed
Usage491,400 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number332674
MLS Number12966070
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
24 1

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

$56,500 USD
*Rep Photos of Exterior - will update with actual photos soon**, 416,806 Miles, Cummins X15 – 450HP, 12 Speed Eaton Automatic, Double Bunk, Aluminum wheels, Battery APU, Collision Mitigation...
ConditionUsed
Usage416,806 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 2.71 ratio
Stock Number399403
MLS Number13586516
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
12 0

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

$53,500 USD
X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, *Rep Photos - will update with actual photos soon**,
ConditionUsed
Usage456,000 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 Number399401
MLS Number13586514
CategorySleeper Semi Trucks
Last Updated6/23/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
28 1

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

$55,500 USD
432,160 Miles, Cummins X15 – 450HP, 12 Speed Automatic, Double Bunk Sleeper, Aluminum wheels, Parksmart APU, Collision Mitigation System, Inverter, 2.79 Ratio, Fleet Maintained, Great...
ConditionUsed
Usage432,160 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 Number399398
MLS Number13586513
CategorySleeper Semi Trucks
Last Updated6/26/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
28 1

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

$47,900 USD
395,982 Miles, Cummins X15 100th Anniversary Edition, 450HP, 12 Speed Eaton Endurant Automatic, Double Bunk Sleeper, Aluminum wheels, Battery APU, Collision Mitigation System, 2.79 Ratio,...
ConditionUsed
Usage395,982 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 Number399394
MLS Number13586512
CategorySleeper Semi Trucks
Last Updated6/26/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
13 0

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

Price Drop
$47,900 USD
X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, *Rep Photos - will update with actual photos soon**,
ConditionUsed
Usage553,300 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 2.71 ratio
Stock Number399393
MLS Number13586511
CategorySleeper Semi Trucks
Last Updated6/24/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic
39 1

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

$59,900 USD
375,954 Miles, X15 – 450HP, 12 Speed Eaton Endurant Automatic, Double Bunk Sleeper, Aluminum wheels, Battery APU, Collision Mitigation System, 2.79 Ratio, 13200 Fronts, 40000 Rears, Powr...
ConditionUsed
Usage375,954 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 Number399392
MLS Number13586510
CategorySleeper Semi Trucks
Last Updated6/26/2025
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

$49,900 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 Updated6/26/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
22 0

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

$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;...
ConditionUsed
Usage585,615 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.85 ratio
Stock Number599737
MLS Number13584863
CategorySleeper Semi Trucks
Last Updated6/21/2025
Location
Las Vegas, NV, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
23 0

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

$47,750 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;...
ConditionUsed
Usage693,085 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock NumberUPS234935
MLS Number13410306
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
Torrance, CA, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
23 0

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

$53,750 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;...
ConditionUsed
Usage644,530 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock NumberUPP235094
MLS Number13560529
CategorySleeper Semi Trucks
Last Updated6/21/2025
Location
La Mirada, CA, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 56" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
28 0

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

Price Drop
$87,500 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;...
ConditionUsed
Usage322,486 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb 3.21 ratio
Stock Number427071
MLS Number13603838
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
Oklahoma City, OK, US
Sold By

Penske Used Trucks

Peterbilt 579 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt
15 0

2020 Peterbilt 579 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$49,900 USD
Looking for a reliable, fuel-efficient, and super clean sleeper that’s ready to hit the road? This Peterbilt 579 is the one. Known for its aerodynamic design, comfortable sleeper cab, and...
ConditionUsed
Usage13,862 Hours
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeMid Roof Sleeper
SuspensionAir Leaf
Rear AxleTandem Axle
Rear End40,000 lb 2.93 ratio
Stock Number225768
MLS Number13660165
CategorySleeper Semi Trucks
Last Updated6/21/2025
Location
Millstone Township, NJ, US
Sold By

Hunter Truck

Peterbilt 567 Tri Axle Dump Truck - Cummins 565HP, 12 Speed Endurant Amt
4 0

2025 Peterbilt 567 Tri Axle Dump Truck - Cummins 565HP, 12 Speed Endurant Amt

Call for price
Don’t just haul, make a statement with this eye-catching 2025 Black Cherry Peterbilt 567 Dump Truck. A perfect blend of power, performance, and unique style, this truck is designed to take...
ConditionNew
Usage16 Hours
Duty ClassHeavy Duty Dump Truck
Horse Power565 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission12 Speed Endurant Automated
SuspensionAir Trac
Rear AxleTri Axle
Rear End46,000 lb 4.10 ratio
Stock Number276462
MLS Number13660006
CategoryDump Trucks
Last Updated6/21/2025
Location
Millstone Township, NJ, US
Sold By

Hunter Truck

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
28 0

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

$52,250 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;...
ConditionUsed
Usage520,092 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number359558
MLS Number13369142
CategorySleeper Semi Trucks
Last Updated6/28/2025
Location
Lacey, WA, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
24 0

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

$47,750 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;...
ConditionUsed
Usage491,732 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number292413
MLS Number12613888
CategorySleeper Semi Trucks
Last Updated6/24/2025
Location
Spokane Valley, WA, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed
1 0

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

$64,500 USD
Inspection Report
ConditionUsed
Usage391,245 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 Number503070
MLS Number13659772
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Baltimore, MD, US
Sold By

International Motors, LLC

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

$64,500 USD
Inspection Report
ConditionUsed
Usage393,422 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 Number503058
MLS Number13659771
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Kansas City, MO, US
Sold By

International Motors, LLC

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

2021 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 400HP, 12 Speed

$53,500 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
ConditionUsed
Usage452,395 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.64 ratio
Stock Number503047
MLS Number13659769
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Shreveport, LA, US
Sold By

International Motors, LLC

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

$64,500 USD
Inspection Report
ConditionUsed
Usage394,431 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 Number503052
MLS Number13659768
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Kansas City, MO, US
Sold By

International Motors, LLC

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
1 0

2021 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

$51,500 USD
Inspection Report
ConditionUsed
Usage381,208 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End20,000 lb 2.79 ratio
Stock Number503022
MLS Number13659767
CategoryDay Cab Semi Trucks
Last Updated6/21/2025
Location
Conley, GA, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 12 Speed
1 0

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

$70,000 USD
Inspection Report
ConditionUsed
Usage402,050 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.64 ratio
Stock Number502971
MLS Number13659763
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Conley, GA, US
Sold By

International Motors, LLC

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

2022 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

$71,000 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
ConditionUsed
Usage268,503 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 Number502978
MLS Number13659762
CategorySleeper Semi Trucks
Last Updated7/2/2025
Location
Shreveport, LA, US
Sold By

International Motors, LLC

Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic
45 0

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

$49,995 USD
CUMMINS X15 / AUTOMATIC TRANSMISSION / FLEET MAINTAINED / FINANCING AVAILABLE 2019 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 568,287 MILES, ORIGINAL TIRES, FLEET MAINTAINED ,...
ConditionUsed
Usage568,287 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automatic
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock Number250928
MLS Number13558443
CategorySleeper Semi Trucks
Last Updated6/21/2025
Location
Fontana, CA, US
Sold By

Fontana Truck Center

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