Used 12 Speed 6x4 Trucks For Sale in United States

Featured Item

51 4

2018 Freightliner Cascadia 126 Day Cab Truck - Detroit 435HP, 12 Speed Dt12 Automatic

$33,500 USD

2018 FREIGHTLINER CASCADIA 126 DAYCAB!! 491K MILES** 435 HP, DD13 ENGINE,DT-12 AUTO TRANSMISSION, SLIDING FIFTH WHEEL, 180" WB, 20K FRONTS, 40K REARS, DISC BREAKS, 70% RUBBER REMAINING,CLEAN...

Condition	Used
Usage	98,362 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
MLS Number	12500178
Category	Day Cab Semi Trucks
Last Updated	7/25/2024
Location	Jackson, TN, US
Sold By	Snider Equipment

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56 4

2017 Freightliner Cascadia 125 Evolution Day Cab Truck - Detroit 505HP, 12 Speed Dt12 Automatic

Featured Item

38 3

2019 Freightliner Cascadia 126 Day Cab Truck - Detroit 505HP, 12 Speed Dt12 Automatic

$34,000 USD

2019 FREIGHTLINER CASCADIA DAYCAB. 455 HP DD15 ENGINE, DT12 DETROIT AUTO TRANS, ALL ALUMINUM WHEELS WITH 75 % RUBBER, VERY CLEAN INTERIOR WITH COLD AC. SHIPPING AVAILABLE

Condition	Used
Usage	591,662 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
MLS Number	12512082
Category	Day Cab Semi Trucks
Last Updated	7/25/2024
Location	Jackson, TN, US
Sold By	Snider Equipment

Featured Item

38 3

2018 Freightliner Cascadia 126 Day Cab Truck - Detroit 435HP, 12 Speed Dt12 Automatic

$30,000 USD

2018 CASCADIA 126!! DD13 435 HP ENGINE, DT 12 AUTOMATIC TRANSMISSION, AIR RIDE SUSPENSION, SLIDING FIFTH, STEEL DISC 11R22.5 WHEELS, 85 % RUBBER REMAINING!! CLEAN INTERIOR, COLD A/C AND...

Condition	Used
Usage	554,718 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	12518980
Category	Day Cab Semi Trucks
Last Updated	7/25/2024
Location	Jackson, TN, US
Sold By	Snider Equipment

Featured Item

49 4

2015 Freightliner Cascadia 125 Day Cab Truck - Detroit 455HP, 12 Speed Dt12 Automatic

$34,000 USD

2015 FREIGHTLINER CASCADIA 125, DD15 ENGINE 455 HP, DT12 AUTO TRANSMISSION, 175"WB, SLIDING FITH, 3.25 RATIO, 85% REMAINING ON RUBBER, CLEAN INTERIOR, A/C AND HEAT.. READY TO WORK.. SEE...

Condition	Used
Usage	362,647 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	12597133
Category	Day Cab Semi Trucks
Last Updated	7/25/2024
Location	Jackson, TN, US
Sold By	Snider Equipment

(844) 693-___ SHOW
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38 0

2020 Kenworth T680 Sleeper Semi Truck - Paccar 405HP

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

$49,900 USD

First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience. Call, click, or stop by and visit us...

Condition	Used
Usage	526,094 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	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	192
MLS Number	12902768
Category	Sleeper Semi Trucks
Last Updated	7/17/2024
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(844) 693-___ SHOW
NUMBERCall Seller

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2019 Kenworth T680 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

$44,900 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	599,226 Miles
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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	201
MLS Number	12946185
Category	Sleeper Semi Trucks
Last Updated	7/17/2024
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(855) 910-___ SHOW
NUMBERCall Seller

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

Price Reduced

$58,000 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 2.41 ratio
Stock Number	3418
MLS Number	12955200
Category	Sleeper Semi Trucks
Last Updated	7/30/2024
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

(855) 560-___ SHOW
NUMBERCall Seller

Featured Item

17 0

2016 Freightliner Cascadia 125 Evolution Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$31,900 USD

2016 Freightliner Cascadia Evolution, 12 Speed Automatic, Lots of work done to this truck recently including head gaskets, turbo and more and it is ready to go!!,

Condition	Used
Usage	714,019 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	2.47 ratio
MLS Number	12963381
Category	Sleeper Semi Trucks
Last Updated	7/8/2024
Location	Ravenel, SC, US
Sold By	Ravenel Truck & Equipment

(855) 560-___ SHOW
NUMBERCall Seller

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17 0

2016 Freightliner Cascadia 125 Day Cab Truck - Detroit 455HP, 12 Speed Dt12 Automatic

$24,900 USD

2016 Freightliner Cascadia 125 Day Cab, 12 Speed Automatic, 686k Miles, Detroit DD15 Engine, Nice Clean Truck Ready To Work!!,

Condition	Used
Usage	686,128 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.53 ratio
MLS Number	12963382
Category	Day Cab Semi Trucks
Last Updated	7/8/2024
Location	Ravenel, SC, US
Sold By	Ravenel Truck & Equipment

(256) 605-___ SHOW
NUMBERCall Seller

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38 0

2020 Mack Anthem Day Cab Truck - 86,000 miles

$69,200 USD

2020 MACK ANTHEM DAY CAB, , -85,000 MILES -ENGINE: MP8 415HP -TRANSMISSION: AUTOMATED MDRIVE 12SPD -BENDIX COLLISION, LANE, AND BLINDSPOT SYSTEM -NEW VIRGIN DRIVE TIRES AND...

Condition	Used
Usage	3,240 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	415 HP
Engine Model	Mack MP8
Drivetrain	6x4
Transmission	12 Speed mDRIVE Automated
Rear Axle	Tandem Axle
MLS Number	12966474
Category	Day Cab Semi Trucks
Last Updated	7/15/2024
Location	FYFFE, AL, US
Sold By	Hill Automotive

(833) 692-___ SHOW
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Featured Item

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2017 Freightliner Cascadia 125 Evolution Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$29,995 USD

*** FINACE OPTIONS AVAILABLE***, *** 90 DAY WARRANTY***, This is a nice unit that comes with a Detroit DD15 with a DT12 Transmission with only 565k miles. It comes with an APU as well as all...

Condition	Used
Usage	565,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	12986199
Category	Sleeper Semi Trucks
Last Updated	7/26/2024
Location	Loganville, GA, US
Sold By	Crescent City Truck and Trailer Sales

(833) 220-___ SHOW
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9 0

2018 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$58,999 USD

Brand New Virgin Drive Tires. Great condition and well maintained fleet truck. Ready to make $$$$$. OK Credit, Bad Credit, No Credit, WE WILL GET YOU FINANCED. Please call Adam at ( or...

Condition	Used
Usage	404,625 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
MLS Number	10070531
Category	Sleeper Semi Trucks
Last Updated	7/3/2024
Location	Selma, CA, US
Sold By	Selma Truck Sales

(833) 627-___ SHOW
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17 0

2018 Freightliner Cascadia 126 Sleeper Semi Truck - 68" Raised Roof Sleeper, Detroit 400HP, DT12

$44,900 USD

TRUCK WILL HAVE NEW TIRES ✅ , Well Maintained Fleet Truck ✅ , Double Bunk ✅ ✅, TV ✅ , Aluminum Wheels ✅, Fully Serviced ✅ , Road Ready ✅ **Take it today with ONLY...

Condition	Used
Usage	747,885 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	68"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	7929
MLS Number	11117569
Category	Sleeper Semi Trucks
Last Updated	4/9/2024
Location	Donna, TX, US
Sold By	DeLucio USA

(833) 627-___ SHOW
NUMBERCall Seller

15 0

2016 Freightliner Cascadia 125 Evolution Tri Axle Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, DT12

$29,900 USD

Excellent Conditions Truck ✅ , Clean Truck Outside and Inside ✅ , Fully Serviced ✅ , Road Ready ✅ **Take it today with ONLY $14,900 DOWN PAYMENT** with our approved credit...

Condition	Used
Usage	924,967 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	6809
MLS Number	11117571
Category	Sleeper Semi Trucks
Last Updated	4/9/2024
Location	Donna, TX, US
Sold By	DeLucio USA

(833) 627-___ SHOW
NUMBERCall Seller

15 0

2015 Volvo VNL64T670 Sleeper Semi Truck - Raised Roof Sleeper, D13 455HP, I Shift

$24,900 USD

Well Maintained Fleet Truck ✅ , Fully Serviced ✅ , Road Ready ✅, Double Bunk ✅, Aluminum Wheels ✅ ~~~ GOOD CREDITS CAN APPLY FOR OUR 0% DOWN PAYMENT PROGRAM ✅ ~~~ ----------...

Condition	Used
Usage	794,402 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	3427
MLS Number	11117609
Category	Sleeper Semi Trucks
Last Updated	7/9/2024
Location	Donna, TX, US
Sold By	DeLucio USA

(855) 370-___ SHOW
NUMBERCall Seller

22 0

2017 Volvo VNL64T670 Sleeper Semi Truck - Raised Roof Sleeper, 425HP, 12 Speed I Shift Automatic

$29,900 USD

2017 Volvo Sleeper (Price includes 6 Month Protection Plan by Premium 2000), Condo - 60" Double Bunk, Volvo D13 425-474HP Engine, I Shift 12 Spd Volvo AT2612D Transmission, 495341 Miles,...

Condition	Used
Usage	21,680 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Drivetrain	6x4
Transmission	12 Speed I Shift Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	17VV008
MLS Number	11271349
Category	Sleeper Semi Trucks
Last Updated	6/15/2024
Location	Kansas City, MO, US
Sold By	Vander Haag's Inc.

12 0

2016 Freightliner Cascadia 125 Sleeper Semi Truck - 58" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$59,950 USD

Used Freightliner Cascadia Sleeper for sale. Features: Air Ride Cab, Hood Spot Mirrors, Power Heated Mirrors, Power Windows, Tilt Steering Column, 1-bed Bunk, Cab Roof Air Fairing, Interior...

Condition	Used
Usage	13,615 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	58"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	22P048
MLS Number	11348841
Category	Sleeper Semi Trucks
Last Updated	11/28/2023
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

12 0

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

$94,950 USD

Used Kenworth T680 Sleeper for sale. Features: Bendix Fusion Side Collision Avoidance System, Double Bunk, Refrigerator, Inverter, SmartWheel, Cloth Seats, Comfort Pro APU, Hood Mirrors,...

Condition	Used
Usage	14,585 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Ultrashift Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	22P102
MLS Number	11382821
Category	Sleeper Semi Trucks
Last Updated	11/28/2023
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

11 0

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

$99,950 USD

Used Kenworth T680 Sleeper for sale. Features: Air Ride Cab, Espar Heater, Power Heated Mirrors, Power Locks and Windows, Tilt Steering Column, Air Ride Seats, 2-bed Bunk, Refrigerator,...

Condition	Used
Usage	11,563 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 2.64 ratio
Stock Number	22P121
MLS Number	11392167
Category	Sleeper Semi Trucks
Last Updated	11/28/2023
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

10 0

2019 Peterbilt 579 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Ultrashift Amt

$99,950 USD

Used Peterbilt 579 Sleeper for sale. Features: Bendix Fusion System, Double Bunk, Espar Bunk Heater, Hood Mirrors, 200 Gallon Fuel Capacity, and more. Coopersburg Liberty Kenworth has new...

Condition	Used
Usage	10,801 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Ultrashift Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	22P082
MLS Number	11397424
Category	Sleeper Semi Trucks
Last Updated	11/28/2023
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

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

$69,950 USD

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 Column, 1-Bed Bunk...

Condition	Used
Usage	8,795 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X12
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	22P133
MLS Number	11404460
Category	Sleeper Semi Trucks
Last Updated	11/28/2023
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth