Heavy Duty Diesel 12 Speed Automated 6x4 Trucks For Sale

Your Current Search
Industry
Trucks
GVWR Category
Heavy Duty
Drive Type
6x4
Transmission Type
Automated
Transmission Speeds
12 Speed
Fuel Type
Diesel
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Trucks (811)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
GVWR Category
Heavy Duty (811)
Rear Axle
Transmission Type
Automated (811)
Transmission Speed
12 Speed (811)
Drive Train
6x4 (811)
Fuel Type
Diesel (811)
Mileage
-
Horsepower
-
Price
-
State / Region
Select a country to view available states.
Market Type
1-25 of 811 results
1-25 of 811 results
Featured Item
Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt
10 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$56,000 USD
N.A.P. New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Alum Wheels, Well maintained fleet truck
ConditionUsed
Usage490,854 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.41 ratio
Stock Number3574
MLS Number13069458
CategorySleeper Semi Trucks
Last Updated10/1/2024
Location
GRANGER, IA, US
Sold By

Barr-Nunn Transportation LLC

Featured Item
Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt
9 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$44,500 USD
New Style Cascadia, 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!,
ConditionUsed
Usage486,740 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.41 ratio
Stock Number3391
MLS Number13066080
CategorySleeper Semi Trucks
Last Updated9/14/2024
Location
GRANGER, IA, US
Sold By

Barr-Nunn Transportation LLC

Volvo VNR64T300 Day Cab Truck - D13 405HP, 12 Speed I Shift Amt
4 0

2020 Volvo VNR64T300 Day Cab Truck - D13 405HP, 12 Speed I Shift Amt

Newly Listed
$24,000 USD
good truck, runs excellent, fleet maintained, air seat, tilt/tele, differential lock, dump valve, power windows, power door locks, power mirrors, heated mirrors, cruise control,
ConditionUsed
Usage553,154 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power405 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.47 ratio
Stock Number20AV553VNRDC
MLS Number13169732
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Volvo VNL64T300 Day Cab Truck - D13 410HP, 12 Speed I Shift Amt
6 1

2020 Volvo VNL64T300 Day Cab Truck - D13 410HP, 12 Speed I Shift Amt

Newly Listed
$34,900 USD
2020 Volvo VNL64T300 **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires for an...
ConditionUsed
Usage338,126 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End38,000 lb
Stock NumberTNF203025 Web
MLS Number13169728
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Lehigh Valley, PA, US
Sold By

Nationwide Haul

Volvo VNL64T300 Day Cab Truck - D13 410HP, 12 Speed I Shift Amt
6 1

2020 Volvo VNL64T300 Day Cab Truck - D13 410HP, 12 Speed I Shift Amt

Newly Listed
$34,900 USD
2020 Volvo VNL64T300 **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires for an...
ConditionUsed
Usage338,126 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End38,000 lb
Stock NumberTNF203025
MLS Number13169727
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Allentown, PA, US
Sold By

Nationwide Haul

International RH Day Cab Truck - A26 410HP, 12 Speed Smart Advantage Amt
11 1

2020 International RH Day Cab Truck - A26 410HP, 12 Speed Smart Advantage Amt

Recently Updated
$20,900 USD
2020 International RH613 Day Cab **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires...
ConditionUsed
Usage486,416 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Smart Advantage Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.47 ratio
Stock NumberTNF202312 Web
MLS Number13149698
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Channahon, IL, US
Sold By

Nationwide Haul

International RH Day Cab Truck - A26 410HP, 12 Speed Smart Advantage Amt
11 1

2020 International RH Day Cab Truck - A26 410HP, 12 Speed Smart Advantage Amt

Recently Updated
$20,900 USD
2020 International RH613 Day Cab **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires...
ConditionUsed
Usage486,416 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Smart Advantage Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.47 ratio
Stock NumberTNF202312
MLS Number13149697
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Channahon, IL, US
Sold By

Nationwide Haul

Volvo VNR64T640 Sleeper Semi Truck - 61" Mid Roof Sleeper, D13 410HP, 12 Speed I Shift Amt
7 1

2020 Volvo VNR64T640 Sleeper Semi Truck - 61" Mid Roof Sleeper, D13 410HP, 12 Speed I Shift Amt

Recently Updated
$36,900 USD
2020 Volvo VNR64T640 **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires for an...
ConditionUsed
Usage595,916 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power410 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
Sleeper TypeMid Roof Sleeper
Sleeper Size61"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End38,000 lb 1.27 ratio
Stock NumberTNF103051 Web
MLS Number13149692
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Lehigh Valley, PA, US
Sold By

Nationwide Haul

Volvo VNR64T640 Sleeper Semi Truck - 61" Mid Roof Sleeper, D13 410HP, 12 Speed I Shift Amt
7 1

2020 Volvo VNR64T640 Sleeper Semi Truck - 61" Mid Roof Sleeper, D13 410HP, 12 Speed I Shift Amt

Recently Updated
$36,900 USD
2020 Volvo VNR64T640 **New Virgin Dual Tires or Super Single tires available on all trucks Trucks are currently on wide base tires but can be swapped to new dual Virgin tires for an...
ConditionUsed
Usage595,916 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power410 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
Sleeper TypeMid Roof Sleeper
Sleeper Size61"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End38,000 lb 1.27 ratio
Stock NumberTNF103051
MLS Number13149689
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Allentown, PA, US
Sold By

Nationwide Haul

Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Amt
5 0

2025 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Amt

Recently Updated
$209,950 USD
New Kenworth T680 Raised-roof Sleeper for sale. Features: 245-gallon Fuel Capacity, Espar Bunk Heater, Adjustable/telescopic Steering Column, Heated Air Ride Driver's Seat,...
ConditionNew
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelPaccar MX-13
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAG 400L
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number173355
MLS Number13135359
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Swedesboro, NJ, US
Sold By

Coopersburg & Liberty Kenworth

2021 Kenworth T680-Sleeper Truck Sleeper Semi Truck
24 0

2021 Kenworth T680-Sleeper Truck Sleeper Semi Truck

Recently Updated
$66,500 USD
For Sale: 2021 Kenworth T680 Double Bunk Sleeper Mileage: 427,604 miles Specifications: Model: 2021 Kenworth T680, Engine: Cummins X15, Transmission: Eaton Fuller automated, Wheelbase:...
ConditionUsed
Usage427,604 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins ISX / X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeDouble Bunk
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number1813810
MLS Number13126578
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Augusta, GA, US
Sold By

Rush Truck Centers Atlanta

2021 Peterbilt 579 Sleeper Semi Truck
13 0

2021 Peterbilt 579 Sleeper Semi Truck

Recently Updated
$64,500 USD
For Sale: 2021 Peterbilt 579 Ultraloft Stock 1152615 Specifications:, Model: 2021 Peterbilt 579 Ultraloft, Sleeper: 80" spacious sleeper, Engine: Cummins X15 Miles: 456,595, Transmission...
ConditionUsed
Usage456,640 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionAir Ride
Stock Number1152615
MLS Number13031270
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

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

Newly Listed
$65,000 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
Usage344,202 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 Number500148
MLS Number13169072
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
Etna, OH, US
Sold By

International Motors, LLC

2020 Freightliner Cascadia 126 Day Cab Truck
16 0

2020 Freightliner Cascadia 126 Day Cab Truck

Price Drop
$62,900 USD
For Sale: 2020 Freightliner Cascadia 126 6x4 Daycab Stock Number: 1799569 Mileage: 241,477 miles Specifications: Model: 2020 Freightliner Cascadia 126 6x4 Daycab, Engine: Detroit DD15...
ConditionUsed
Usage241,477 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power455 HP
Engine ModelDetroit Detroit Diesel DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Rear AxleTandem Axle
Rear End40,000 lb 2.47 ratio
Stock Number1799569
MLS Number13045436
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

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

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$54,500 USD
virgin Rubber, PM, DOT, Available Warranty.
ConditionUsed
Usage381,730 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 End40,000 lb 2.79 ratio
Stock Number499236
MLS Number13169071
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
La Vergne, TN, US
Sold By

International Motors, LLC

Volvo VNR64T300 Day Cab Truck - D13 405HP, 12 Speed I Shift Amt
18 1

2020 Volvo VNR64T300 Day Cab Truck - D13 405HP, 12 Speed I Shift Amt

Recently Updated
$26,000 USD
good truck, runs excellent, fleet maintained, air seat, tilt/tele, differential lock, dump valve, power windows, power door locks, power mirrors, heated mirrors, cruise control,
ConditionUsed
Usage487,496 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power405 HP
Engine ModelVolvo D13
Drivetrain6x4
Transmission12 Speed I Shift Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.47 ratio
Stock Number20AV487VNRDC
MLS Number13113172
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
4 0

2020 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$46,000 USD
Virgin Rubber, PM, DOT, Available Warranty.
Inspection Report
ConditionUsed
Usage354,696 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 End40,000 lb 2.79 ratio
Stock Number497153
MLS Number13169063
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
La Vergne, TN, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed
33 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated
$37,000 USD
ConditionUsed
Usage403,548 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number492872
MLS Number12906116
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed
33 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated
$36,000 USD
ConditionUsed
Usage427,959 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number492868
MLS Number12906115
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed
33 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated
$36,000 USD
ConditionUsed
Usage429,648 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number492832
MLS Number12910544
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed
33 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated
$37,500 USD
ConditionUsed
Usage404,134 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number492827
MLS Number12761841
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed
33 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated
$37,500 USD
ConditionUsed
Usage422,683 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelInternational A26
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number492813
MLS Number12910542
CategorySleeper Semi Trucks
Last Updated10/10/2024
Location
West Sacramento, CA, US
Sold By

International Motors, LLC

Kenworth T880 Day Cab Truck - Paccar 445HP, 12 Speed Amt
10 0

2025 Kenworth T880 Day Cab Truck - Paccar 445HP, 12 Speed Amt

Recently Updated
$179,950 USD
New Kenworth T880 Daycab for sale. Features: MX11 Engine/light weight, Empty Weight:14,500 LBS., Power Locks, Power Windows, Slate Gray Interior, Air Ride Driver's Seat, Toolbox Seat...
ConditionNew
Duty ClassHeavy Duty Day Cab Truck
Horse Power445 HP
Engine ModelPaccar MX-11
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAG 380
Rear AxleTandem Axle
Rear End38,000 lb 3.08 ratio
Stock Number178041
MLS Number13094708
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Coopersburg, PA, US
Sold By

Coopersburg & Liberty Kenworth

Kenworth T880 Day Cab Truck - Paccar 445HP, 12 Speed Amt
10 0

2025 Kenworth T880 Day Cab Truck - Paccar 445HP, 12 Speed Amt

Recently Updated
$179,950 USD
New Kenworth T880 Daycab for sale. Features: MX11 Engine/light weight, Empty Weight:14,500 LBS., Power Locks, Power Windows, Slate Gray Interior, Air Ride Driver's Seat, Toolbox Seat...
ConditionNew
Duty ClassHeavy Duty Day Cab Truck
Horse Power445 HP
Engine ModelPaccar MX-11
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAG 380
Rear AxleTandem Axle
Rear End38,000 lb 3.08 ratio
Stock Number178040
MLS Number13094703
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Coopersburg, PA, US
Sold By

Coopersburg & Liberty Kenworth

Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt
10 0

2023 Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

Recently Updated
$129,950 USD
Used 2023 Kenworth T680 Daycab for Sale. Features: Dual Vertical Exhaust, Hood Mounted Side Mirrors, Heated Power Mirrors, Aluminum Quarter Fenders, Single Frame, Block Heater, Tilt Steering...
ConditionUsed
Usage4,679 Hours
Duty ClassHeavy Duty Day Cab Truck
Horse Power500 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
SuspensionAG 400
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number24P103T
MLS Number13066393
CategoryDay Cab Semi Trucks
Last Updated10/10/2024
Location
Coopersburg, PA, US
Sold By

Coopersburg & Liberty Kenworth

Did you find what you were looking for? Yes No