Used 12 Speed 6x4 Sleeper Semi Trucks For Sale

(844) 693-___ SHOW
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19 0

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

$46,500 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	453,176 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	Tandem Axle
Rear End	40,000 lb
Stock Number	259
MLS Number	13209066
Category	Sleeper Semi Trucks
Last Updated	11/1/2024
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(844) 689-___ SHOW
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1 0

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

$47,000 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

Condition	Used
Usage	339,279 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	499235
MLS Number	13208876
Category	Sleeper Semi Trucks
Last Updated	11/2/2024
Location	Etna, OH, US
Sold By	International Motors, LLC

(844) 334-___ SHOW
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33 0

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

$47,000 USD

Inspection Report

Condition	Used
Usage	337,237 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	498924
MLS Number	13002332
Category	Sleeper Semi Trucks
Last Updated	11/2/2024
Location	Tampa, FL, US
Sold By	International Motors, LLC

(844) 334-___ SHOW
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33 0

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

$48,500 USD

Inspection Report

Condition	Used
Usage	309,725 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	496094
MLS Number	12991709
Category	Sleeper Semi Trucks
Last Updated	11/2/2024
Location	Tampa, FL, US
Sold By	International Motors, LLC

(844) 334-___ SHOW
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33 0

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

$45,500 USD

Inspection Report

Condition	Used
Usage	369,310 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	496886
MLS Number	12906112
Category	Sleeper Semi Trucks
Last Updated	11/2/2024
Location	Tampa, FL, US
Sold By	International Motors, LLC

(844) 216-___ SHOW
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23 1

2019 Kenworth T680 Sleeper Semi Truck - Paccar 450HP, 12 Speed Ultrashift Automatic

$37,900 USD

Fleet Maintained, Fresh DOT, New rear brakes, Outside Aluminum wheels, Stock 224454, 463,125 Miles, Paccar MX-13, 455 HP, Eaton-Fuller Automatic, Double Bunk, Dual air ride seats, Collision...

Condition	Used
Usage	463,125 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Ultrashift Automatic
Rear Axle	Tandem Axle
Stock Number	224454
MLS Number	12483711
Category	Sleeper Semi Trucks
Last Updated	11/1/2024
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(833) 801-___ SHOW
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5 0

2019 Volvo VNR64T640 Sleeper Semi Truck - 64" Mid Roof Sleeper, D13 375HP, 12 Speed Amt

Price Drop

$23,000 USD

good truck, very clean, runs great, power windows, power mirrors, fleet maintained, smart wheel, tilt/tele, air seat,

Condition	Used
Usage	845,145 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	435 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	64"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	19D13845VNR640
MLS Number	12013272
Category	Sleeper Semi Trucks
Last Updated	11/1/2024
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 801-___ SHOW
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10 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 75" Raised Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Amt

$24,000 USD

good truck, runs great, clean, fleet maintained, full locking rears, A/S 5th, dump valve, full gauge package, tilt/tele, power windows, power mirrors, heated mirrors!,

Condition	Used
Usage	839,240 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	75"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	19DET839CAS
MLS Number	13206847
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 780-___ SHOW
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26 0

2019 Kenworth T680 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

$42,990 USD

Hard to find color. Amazing!, New Eaton Endurant Transmission at 490k miles. Done at Kenworth. Inverter, fridge Sale price includes a detail

Condition	Used
Usage	24,528 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	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	259114C
MLS Number	13206844
Category	Sleeper Semi Trucks
Last Updated	11/2/2024
Location	West Valley City, UT, US
Sold By	Utah Tank & Trailer

(833) 796-___ SHOW
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20 1

2016 Volvo VNL64T670 Sleeper Semi Truck - 67" Raised Roof Sleeper, D13 475HP, 12 Speed I Shift Amt

$17,900 USD

796162 Miles, Engine: VOLVO D13, 475 HP, Fuel Type: Diesel, 12 Speed I Shift AMT Transmission, Drive: 6x4, Volvo Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 67,...

Condition	Used
Usage	796,162 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	67"
Suspension	Volvo Air Ride
Rear Axle	Tandem Axle
Rear End	3.25 ratio
Stock Number	965257
MLS Number	13206828
Category	Sleeper Semi Trucks
Last Updated	11/6/2024
Location	Spokane, WA, US
Sold By	Class 8 Trucks

(855) 907-___ SHOW
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10 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$59,500 USD

Warranty

Condition	Used
Usage	451,418 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	Condo Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.16 ratio
Stock Number	HP0271
MLS Number	13190271
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Strafford, MO, US
Sold By	HD Trucks LLC

(844) 693-___ SHOW
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21 0

2019 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$39,950 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	572,979 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	Tandem Axle
Rear End	40,000 lb
Stock Number	266
MLS Number	13206547
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(877) 705-___ SHOW
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6 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 455HP, 12 Speed Automatic

$64,900 USD

2020 KENWORTH T680, READY TO ROLL, GOOD MILES 336167, CUMMINS X15 WITH 455 HP, 12 SP AUTOMATIC TRANSMISSION, CALL OR TEXT VICKI PUCKETT@ {540} 830-0417 ***FINANCING AND EXTENDED WARRANTIES...

Condition	Used
Usage	366,167 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	LJ372966U/HBG
MLS Number	13206536
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Harrisonburg, VA, US
Sold By	Truck Enterprises Inc.

(855) 717-___ SHOW
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50 1

2021 Peterbilt 567 Sleeper Semi Truck - 65" Mid Roof Sleeper, Paccar 455HP, 12 Speed Automatic

$52,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATED 12 SPEED!!! ENGINE BRAKE, DEF, TC. Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! ...

Condition	Used
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	65"
Rear Axle	Tandem Axle
Rear End	2.79 ratio
Stock Number	L03148-DELIVERY 2 U
MLS Number	13179434
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(833) 685-___ SHOW
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34 1

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 68" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$42,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, AUTOMATIC, DETROIT ENGINE, LIQUID DEF Se Habla Espanol! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! ...

Condition	Used
Usage	633,080 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	68"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	S01998-DELIVERY 2 U
MLS Number	13169373
Category	Sleeper Semi Trucks
Last Updated	11/5/2024
Location	Gaffney, SC, US
Sold By	Diamond Truck Sales Inc

(844) 900-___ SHOW
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55 1

2018 Freightliner Cascadia 113 Sleeper Semi Truck - 57" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$33,900 USD

*** 8 NEW TIRES!!! *** *** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 10 speed!!! DEF, SLIDING 5TH WHEEL, ENGINE BRAKE, TRAILER BRAKE COLLISION MITIGATION Se Habla Español!...

Condition	Used
Usage	684,356 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	58"
Rear Axle	Tandem Axle
Rear End	3.07 ratio
Stock Number	L03055-8 NEW TIRES
MLS Number	13104480
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(833) 685-___ SHOW
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16 0

2020 Freightliner Cascadia 116 Sleeper Semi Truck - 58" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$52,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, AUTOMATIC, DETROIT ENGINE, LIQUID DEF Se Habla Espanol! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! ...

Condition	Used
Usage	425,953 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	58"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.47 ratio
Stock Number	S02054-DELIVERY 2 U
MLS Number	13203691
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Gaffney, SC, US
Sold By	Diamond Truck Sales Inc

(844) 689-___ SHOW
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33 0

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

Price Drop

$57,900 USD

Manager's Special - Truck is Road Ready! Current Federal DOT Inspection � PM/B Wet Service Completed - OEM Warranty AvailableTruck comes with 60-Day Truck Protect Promise Coverage INCLUDES...

Inspection Report

Condition	Used
Usage	344,202 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.85 ratio
Stock Number	500148
MLS Number	13169072
Category	Sleeper Semi Trucks
Last Updated	11/5/2024
Location	Etna, OH, US
Sold By	International Motors, LLC

(844) 689-___ SHOW
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33 0

2021 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, A26 450HP, 12 Speed

$39,900 USD

Manager's Special - Truck is Road Ready! Current Federal DOT Inspection � PM/B Wet Service Completed - OEM Warranty AvailableTruck comes with 60-Day Truck Protect Promise Coverage INCLUDES...

Inspection Report

Condition	Used
Usage	451,895 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	International A26
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.64 ratio
Stock Number	499049
MLS Number	13081314
Category	Sleeper Semi Trucks
Last Updated	11/5/2024
Location	Etna, OH, US
Sold By	International Motors, LLC

(855) 712-___ SHOW
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4 0

2021 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 12 Speed

$56,000 USD

Inspection Report

Condition	Used
Usage	444,374 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.64 ratio
Stock Number	499043
MLS Number	12937650
Category	Sleeper Semi Trucks
Last Updated	10/30/2024
Location	Conley, GA, US
Sold By	International Motors, LLC

(866) 751-___ SHOW
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23 0

2025 Western Star 57X Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$193,400 USD

NEW!!! 57X MID ROOF FLATBED HAULER!!!! DD15/505hp, DT12 AUTOMATED TRANSMISSION with 60 MONTH/750,000 Mile Warranty. Call for more information

Condition	Used
Usage	531 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
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	108920
MLS Number	13184634
Category	Sleeper Semi Trucks
Last Updated	10/30/2024
Location	Louisville, KY, US
Sold By	Boyd Truck Centers

(844) 748-___ SHOW
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94 0

2023 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit

$104,900 USD

274313 Miles, 9665 Hours, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, 12 Speed Endurant AMT Transmission, Drive: 6x4, Overdrive, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper,...

Condition	Used
Usage	9,665 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Emission Rating	USA Tier 4 Final
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 2.79 ratio
Stock Number	UH2061
MLS Number	13068305
Category	Sleeper Semi Trucks
Last Updated	10/30/2024
Location	Elgin, IL, US
Sold By	TFS Recovery, Inc.

(855) 717-___ SHOW
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45 1

2020 Peterbilt 579 Sleeper Semi Truck - 72" Raised Roof Sleeper, Paccar 455HP, 12 Speed Automatic

$44,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, AUTOMATIC, SIDE AND FULL FAIRINGS, LIQUID DEF Se Habla Espanol! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! ...

Condition	Used
Usage	432,009 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	N14603-DELIVERY 2 U
MLS Number	13133891
Category	Sleeper Semi Trucks
Last Updated	10/30/2024
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

(855) 907-___ SHOW
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19 1

2021 Peterbilt 579 Sleeper Semi Truck

$44,950 USD

HD Certified Fleet Maintained 2021 Peterbilt 579, 510HP!! Chicken Lights ,92 Point Dealer Inspection, Passing Dot, Complete Detail with New Mattress, 6 Month 50,000 Mile Engine ...

Warranty

Condition	Used
Usage	478,248 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Paccar MX/MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Sky Rise Pro Sleeper
Sleeper Size	80"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	HP4493
MLS Number	13024493
Category	Sleeper Semi Trucks
Last Updated	10/31/2024
Location	Strafford, MO, US
Sold By	HD Trucks LLC