12 Speed Automated Tandem Axle 6x4 Trucks For Sale in United States

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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$52,000 USD

New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Well maintained fleet truck

Condition	Used
Usage	471,810 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	3418
MLS Number	12955200
Category	Sleeper Semi Trucks
Last Updated	8/14/2024
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

(833) 801-___ SHOW
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5 0

2016 Volvo VNL64T670 Sleeper Semi Truck - 67" Raised Roof Sleeper, D13 425HP, 12 Speed Amt

Newly Listed

$15,000 USD

good truck, runs great, dual air ride seats, double bunk, cruise, differential lock, power right window, power mirrors, differential lock, dump valve, A/S 5th wheel, GOOD RUNNING TRUCK JUST...

Condition	Used
Usage	574,824 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	67"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	16D13574670
MLS Number	13056998
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(855) 591-___ SHOW
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36 0

2020 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Paccar, 12 Speed Amt

Newly Listed

$49,900 USD

2020 Peterbilt 579 Ultraloft – This truck is extremely clean! Southern truck! Remaining 7 year/700k mile engine major components warranty and 10 year/435k mile emissions warranty remaining!...

Condition	Used
Usage	9,563 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	651128
MLS Number	13056947
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

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22 0

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

Newly Listed

Call for price

CUSTOMER NO TAKES. 9 AVAILABLE. FACTORY APU. CALL LUKE WHEELER @,

Quantity	9
Condition	New
Usage	1 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
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	144735
MLS Number	13056922
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Roanoke, VA, US
Sold By	Truck Enterprises Inc.

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38 0

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Paccar 455HP, 12 Speed Amt

Newly Listed

$49,900 USD

2020 Kenworth T680 - This is a very clean truck! You don't want to miss this one! Only 4k engine hours! Paccar MX-13 455 HP Engine, 12 Speed Paccar Automatic Transmission, Double Bunk Condo...

Condition	Used
Usage	4,418 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.79 ratio
Stock Number	388606
MLS Number	13056861
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(833) 796-___ SHOW
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16 0

2009 Volvo VNL64T300 Day Cab Truck - D13 485HP, 12 Speed I Shift Amt

Newly Listed

$34,900 USD

Volvo D13, 485 hp, Low Miles 216,753, I Shift Automated " Automatic", interaxle lock with addition locker in the rear differential, Local to us truck, beverage company a mile down the...

Condition	Used
Usage	216,753 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	485 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	273847
MLS Number	13055960
Category	Day Cab Semi Trucks
Last Updated	8/17/2024
Location	Spokane, WA, US
Sold By	Class 8 Trucks

(833) 368-___ SHOW
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15 1

2020 Peterbilt 579 Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

Newly Listed

$59,999 USD

Condition	Used
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	Leaf Springs
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	ULD656699
MLS Number	13055929
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Fargo, ND, US
Sold By	Wallwork Truck Center

(877) 705-___ SHOW
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15 0

2022 Kenworth T680 Sleeper Semi Truck - 52" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

Newly Listed

$69,900 USD

Qualifies for Fed Ex Service. Certified!! Certified!! KWS Certified Pre-Owned / 114-point Inspection / 1 year or 125,000 miles warranty included. Call for Details

Condition	Used
Usage	489,951 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15E
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	52"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	NJ124321
MLS Number	13055553
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Hagerstown, MD, US
Sold By	Truck Enterprises Inc.

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32 0

2020 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Paccar, 12 Speed Amt

Newly Listed

$49,900 USD

2020 Peterbilt 579 Ultraloft - This truck is extremely clean! Southern truck! Remaining 7 year/700k mile engine major components warranty and 10 year/435k mile emissions warranty remaining!...

Condition	Used
Usage	330,213 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	651055
MLS Number	13055518
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

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27 1

2023 Kenworth T680 Sleeper Semi Truck - 72" Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$114,900 USD

$$$ THE COLOR OF MONEY $$$ BEAUTIFUL GREEN METAL FLAKE PAINT! THIS 2023 KENWORTH T680 NEXT GEN. FEATURES A PACCAR MX13 455 HP ENGINE, 12 SPEED AUTOMATED TRANSMISSION, 72" RAISED ROOF SLEEPER...

Condition	Used
Usage	205,079 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	PJ235175U/ROA
MLS Number	13055512
Category	Sleeper Semi Trucks
Last Updated	8/17/2024
Location	Roanoke, VA, US
Sold By	Truck Enterprises Inc.

(855) 489-___ SHOW
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42 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$49,000 USD

Includes 6 month/50,000 engine and aftertreatment warranty, 455 hp/ Automated 12 transmission, Refrigerator, Diesel APU,

Condition	Used
Usage	464,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.93 ratio
Stock Number	1905
MLS Number	13055474
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

(855) 489-___ SHOW
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42 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$49,000 USD

Includes 6 month/50,000 engine and aftertreatment warranty, 455 hp/ Automated 12 transmission, Refrigerator, Diesel APU,

Condition	Used
Usage	452,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.93 ratio
Stock Number	1903
MLS Number	13055473
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

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13 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck

Newly Listed

$54,977 USD

For Sale: 2020 Freightliner Cascadia 126 Double Bunk Condo Stock Number: 1799505 Mileage: 538,500 miles Specifications: Model: 2020 Freightliner Cascadia 126 Double Bunk Condo,...

Quantity	2
Condition	Used
Usage	538,500 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit Diesel DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Stock Number	1799505
MLS Number	13055455
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Atlanta, GA, US
Sold By	Rush Truck Centers Atlanta

(833) 801-___ SHOW
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4 0

2019 Mack Anthem 64T Day Cab Truck - MP7 425HP, 12 Speed M Drive Amt

Newly Listed

$26,000 USD

nice truck, runs great, clean, air seat, power windows, power door locks, power mirrors, heated mirrors, dump valve, differential lock, tilt/tele, *WET KIT!,

Condition	Used
Usage	682,394 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	425 HP
Engine Model	Mack MP7
Drivetrain	6x4
Transmission	12 Speed mDRIVE Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	19ANTHEM682DC
MLS Number	13051408
Category	Day Cab Semi Trucks
Last Updated	8/15/2024
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(855) 717-___ SHOW
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2 0

2020 Peterbilt 579 Sleeper Semi Truck - Paccar 380HP

Newly Listed

$44,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** ****!!!! 8-NEW TIRES!!!**** AUTOMATED 12-SPEED!!!! ENGINE BRAKE, TC, ENGINE FAN, SLEEPER WINDOW, APU ( DIESEL POWERED),...

Condition	Used
Usage	530,216 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	74"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.69 ratio
Stock Number	N14524-8 NEW TIRES
MLS Number	13048792
Category	Sleeper Semi Trucks
Last Updated	8/16/2024
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

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6 0

2019 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$32,000 USD

VERY NICE TRUCK, LEASE MAINTAINED, runs excellent, good tires, dual air ride seats, double bunk, BIG SLEEPER, power windows, power mirrors, heated mirrors, differential lock, dump valve, A/S...

Condition	Used
Usage	498,378 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
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
Stock Number	19MX498579
MLS Number	13046264
Category	Sleeper Semi Trucks
Last Updated	8/13/2024
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

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12 0

2020 Freightliner Cascadia 126 Day Cab Truck

Newly Listed

$64,977 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...

Condition	Used
Usage	241,477 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Detroit Detroit Diesel DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	1799569
MLS Number	13045436
Category	Day Cab Semi Trucks
Last Updated	8/12/2024
Location	Atlanta, GA, US
Sold By	Rush Truck Centers Atlanta

(855) 984-___ SHOW
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9 0

2025 Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

Newly Listed

$184,500 USD

Model Year: 2025 Kenworth T680 Next Gen, Engine: Cummins X15 Productivity Series, 500 horsepower @ 1900 RPM, 1650 lb-ft torque @ 900 RPM, Transmission: Eaton Endurant EEO16F112C 12-speed...

Condition	New
Usage	444 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 400
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	KN126722
MLS Number	13043519
Category	Day Cab Semi Trucks
Last Updated	8/11/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

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21 0

2025 Kenworth T880 Day Cab Truck - Paccar 510HP, 12 Speed Autoshift Amt

Newly Listed

$182,500 USD

Model Year: 2025 Kenworth T880, Engine: PACCAR MX-13, 510 horsepower @ 1600 RPM, 1850 lb-ft torque @ 1000 RPM, with engine brake, Transmission: PACCAR TX-12 PO18F112C, 12-speed automated,...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Autoshift Automated
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Stock Number	KN131169
MLS Number	13043508
Category	Day Cab Semi Trucks
Last Updated	8/11/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

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7 0

2025 Kenworth T880 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

$185,500 USD

Model Year: 2025, Model: Kenworth T880, VIN: 1XKZD49X9SJ133618, Exterior Color: White (L0006EY), Interior: Vantage Daycab in Slate Gray Engine Transmission Engine: Cummins X15 500V...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Stock Number	KN133618
MLS Number	13042972
Category	Day Cab Semi Trucks
Last Updated	8/10/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

(707) 849-___ SHOW
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117 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$54,500 USD

Truck can be sold with new Dual tires if the buyer prefers Excellent Condition Original Owner One Driver One Owner Seats are hot and cold vinyl AC is cold New Radiator Brakes are air disc...

Condition	Used
Usage	444,728 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
MLS Number	13041895
Category	Sleeper Semi Trucks
Last Updated	8/9/2024
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(844) 962-___ SHOW
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7 0

2021 Mack Pinnacle 64T Day Cab Truck - MP8 505HP, 12 Speed M Drive Amt

$135,500 USD

271471 Miles, 9507 Hours, Engine: MACK MP8, 505 HP, Fuel Type: Diesel, 12 Speed M Drive AMT Transmission, Drive: 6x4, Air Ride Suspension, Wheels: All Aluminum, Tandem Rear Axles, Front Axle...

Condition	Used
Usage	9,507 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	505 HP
Engine Model	Mack MP8
Drivetrain	6x4
Transmission	12 Speed mDRIVE Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb
Stock Number	08140
MLS Number	13038953
Category	Day Cab Semi Trucks
Last Updated	8/8/2024
Location	Worcester, MA, US
Sold By	Ballard Truck Center