6x4 Sleeper Semi Trucks For Sale in United States

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Featured Item

2025 Kenworth W990 Sleeper Semi Truck, Over the Road, Delivery, Hauler, Day Cab, Tractor, Trucking, Cummins Engine, Wet Kit, Headache Rack, Tandem

$169,999 USD

2025 Kenworth W990 Sleeper , Stock: 129952, VIN:1XK1D49X5SJ129952, Year: 2025, Make: Kenworth, Model: W990, Engine:Cummins X15 565 hp Engine, Mileage: 122031, Horsepower: 565HP,...

Condition	Used
Usage	2,277 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins ISX / X15
Drivetrain	6x4
Transmission	10 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	129952
MLS Number	14047480
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

Featured Item

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

$54,999 USD

FEDEX SPEC CALL TIPTON CONQUEST FOR TRUCK AND TRAILER SALES!,

Condition	Used
Usage	474,000 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
Suspension	Air Ride
Rear Axle	Tandem Axle
MLS Number	13813860
Category	Sleeper Semi Trucks
Last Updated	12/22/2025
Location	Odenville, AL, US
Sold By	Used Truck and Trailer, Inc.

Featured Item

2005 Peterbilt 387 Sleeper Semi Truck - Raised Roof Sleeper, Caterpillar 668HP, 18 Speed Manual

$22,999 USD

CATERPILLAR MOTOR 668HP -- 18SPD TRANSMISSION - DOUBLE BUNK SLEEPER - TANDEM AXLE - FRIDGE,

Condition	Used
Usage	752,803 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	668 HP
Engine Model	Caterpillar C15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	D879063
MLS Number	13788525
Category	Sleeper Semi Trucks
Last Updated	12/22/2025
Location	Odenville, AL, US
Sold By	Used Truck and Trailer, Inc.

Featured Item

2020 International LoneStar Sleeper Semi Truck - Flat Top Sleeper, Cummins 605HP, 18 Speed Manual

$69,999 USD

CUMMINS X15 605 HP - 18 SPD MANUAL - FLAT TOP - 302,859 MILES - DUAL ALUMINUM TANKS - AIR RIDE - SINGLE BUNK,

Condition	Used
Usage	302,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	605
MLS Number	13630297
Category	Sleeper Semi Trucks
Last Updated	12/22/2025
Location	Odenville, AL, US
Sold By	Used Truck and Trailer, Inc.

(844) 321-___ SHOW
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Featured Item

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$85,900 USD

Balance of Detroit Diesel 5 Year/500K Mile Major Components (PARTS ONLY) Warranty and 5 Year/750K Mile Basic Transmission Warranty In Service: 09/19/2022, LEAD TRUCK,

Condition	Used
Usage	5,631 Hours
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	40,000 lb 2.85 ratio
Stock Number	1718
MLS Number	14044092
Category	Sleeper Semi Trucks
Last Updated	12/31/2025
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(844) 321-___ SHOW
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Featured Item

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$95,900 USD

Balance of Detroit Diesel 5 Year/500K Mile Major Components (PARTS ONLY) Warranty and 5 Year/750K Mile Basic Transmission Warranty In Service: 03/06/2023,

Condition	Used
Usage	5,326 Hours
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	40,000 lb 2.85 ratio
Stock Number	1714
MLS Number	14044040
Category	Sleeper Semi Trucks
Last Updated	12/31/2025
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(844) 321-___ SHOW
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Featured Item

2022 Volvo VNL64T760 Sleeper Semi Truck - 76" Raised Roof Sleeper, D13 455HP, 12 Speed I Shift Automatic

$69,900 USD

Manufacturer’s Engine Warranty: Balance of VOLVO 5 Year/500,000 Mile Plan 2 and Major Components Warranty. In Service: 3/17/2021,

Condition	Used
Usage	12,027 Hours
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
Sleeper Size	76"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	1712
MLS Number	14044011
Category	Sleeper Semi Trucks
Last Updated	12/31/2025
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(707) 849-___ SHOW
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Featured Item

2020 Peterbilt 389 Sleeper Semi Truck - Flat Top Sleeper, Cummins 565HP, 13 Speed Manual

$115,000 USD

2020 Peterbilt 389 Flat Top Sleeper Well Maintained, ready for work 440k Miles, Cummins X15 Engine, 565HP, 13 Speed, Locker, 52350lb GVW,

Condition	Used
Usage	440,289 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	13773412
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

Featured Item

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit

$34,999 USD

729000 Miles, Engine: DETROIT DD15, Fuel Type: Diesel, Drive: 6x4, Tandem Rear Axles

Condition	Used
Usage	729,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Drivetrain	6x4
Rear Axle	Tandem Axle
MLS Number	13767221
Category	Sleeper Semi Trucks
Last Updated	12/22/2025
Location	Odenville, AL, US
Sold By	Used Truck and Trailer, Inc.

(833) 781-___ SHOW
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2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

Recently Updated

$96,700 USD

Condition	Used
Usage	393,834 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15TCO 50 STATE
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	32251
MLS Number	14069406
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	PHOENIX, AZ, US
Sold By	Schneider

(855) 605-___ SHOW
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2017 Freightliner Coronado 122 SD Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 500HP, 13 Speed Manual

Newly Listed

Contact for price

277856 Miles, Engine: DETROIT SERIES 60 14.0 DDEC IV, 500 HP, 13 Speed Manual Transmission, Drive: 6x4, Overdrive, AirLiner Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 70,...

Condition	Used
Usage	277,856 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit SERIES 60 14.0 DDEC IV
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	CON1719
MLS Number	14086130
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(833) 801-___ SHOW
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2020 Peterbilt 579 Sleeper Semi Truck - 75" Raised Roof Sleeper, Paccar 455HP, 12 Speed Amt

Newly Listed

$20,000 USD

GOOD TRUCK, RUNS EXCELLENT, AIR SEATS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, APU!,

Condition	Used
Usage	759,001 Miles
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
Sleeper Size	75"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	20MX759579
MLS Number	14086105
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(844) 985-___ SHOW
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2021 Peterbilt 579 Sleeper Semi Truck - Paccar 380HP

Newly Listed

$38,900 USD

519431 Miles, Engine: PACCAR, 380 HP, Fuel Type: Diesel, Drive: 6x4, Tandem Rear Axles

Condition	Used
Usage	519,431 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	380 HP
Drivetrain	6x4
Rear Axle	Tandem Axle
Stock Number	8680247
MLS Number	14085998
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Rockford, IL, US
Sold By	JX Truck Center

(855) 981-___ SHOW
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2021 International LT Sleeper Semi Truck - 56" Mid Roof Sleeper, A26 410HP, 12 Speed Endurant Amt

Newly Listed

$34,900 USD

2021 International LT625 Sleeper **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...

Condition	Used
Usage	435,445 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	410 HP
Engine Model	International A26
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNF122079
MLS Number	14085946
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Cambridge, OH, US
Sold By	Nationwide Haul

(844) 900-___ SHOW
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2019 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$37,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** SLIDING 5TH WHEEL!!!!! AIR RIDE, Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! Disclaimer:,...

Condition	Used
Usage	723,089 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	L01650-DELIVERY 2 U
MLS Number	14069928
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(844) 624-___ SHOW
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2024 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Recently Updated

$108,950 USD

**For sale: Two low-mileage DD15-powered Cascadia's, fully equipped with APUs and loaded with warranties** Upgrade your fleet with the industry-leading 2024 Freightliner Cascadia 126 WITH...

Condition	Used
Usage	6,060 Hours
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	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	WS10445
MLS Number	14053757
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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2024 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Recently Updated

$108,950 USD

**For sale: Two low-mileage DD15-powered Cascadia's, fully equipped with APUs and loaded with warranties** Upgrade your fleet with the industry-leading 2024 Freightliner Cascadia 126 WITH...

Condition	Used
Usage	6,060 Hours
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	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	WS10445
MLS Number	14053756
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 985-___ SHOW
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2017 International LoneStar Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 550HP, Manual

Recently Updated

$34,900 USD

550HP! This 2017 LONESTAR is powered by a Cummins Engine and paired with a Manual 13 Speed with Double Overdrive Transmission; 72in Single Bunk Sleeper; Air Slide 5th Wheel; Dual Exhaust;...

Condition	Used
Usage	641,883 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	8680242
MLS Number	14052070
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Pewaukee, WI, US
Sold By	JX Truck Center

(844) 624-___ SHOW
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2022 Kenworth W990 Sleeper Semi Truck - 76" Mid Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Price Drop $74,950 USD

**TRUCK IS LOADED WITH TRIPAC APU, ESPAR BUNK HEATER, FACTORY WARRANTY TIL JULY OF 2026, DUAL CHROME STACKS, 275" WHEELBASE, CHROME GRILL BUMPER, HIGH END TRIM PACKAGE, DIAMOND INTERIOR,...

Condition	Used
Usage	349,811 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	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	MO10382
MLS Number	14045683
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(888) 754-___ SHOW
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2022 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, A26 450HP, 12 Speed

Recently Updated

$50,500 USD

Inspection Report

Condition	Used
Usage	375,279 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	International A26
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.79 ratio
Stock Number	502112
MLS Number	13606641
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Joliet, IL, US
Sold By	International Motors, LLC

(855) 591-___ SHOW
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2024 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Price Drop $92,900 USD

2024 Kenworth T680 Next Gen – 1 Owner, Fleet Maintained Next Gen Kenworth!, This is one CLEAN truck—came all the way from Tennessee! , 450 HP Cummins X15 engine, , 12-speed Eaton Endurant...

Condition	Used
Usage	5,137 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	369197
MLS Number	14020292
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(855) 981-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - Flat Top Sleeper, Paccar 405HP, Automatic

Price Drop $34,990 USD

2020 Kenworth T680 Specs:, -Drive: 6x4, -Mileage: 557,742, -Engine: Paccar MX-13, -HP:405, -Color: Blue, -Wheels: Aluminum, -Tires: 22.5LP, THE NATIONWIDE HAUL EDGE - We finance All...

Condition	Used
Usage	557,742 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	405 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC36781MAC Web
MLS Number	14007862
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Macon, GA, US
Sold By	Nationwide Haul

(855) 981-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - Flat Top Sleeper, Paccar 405HP, Automatic

Price Drop $34,990 USD

2020 Kenworth T680 Specs:, -Drive: 6x4, -Mileage: 557,742, -Engine: Paccar MX-13, -HP:405, -Color: Blue, -Wheels: Aluminum, -Tires: 22.5LP, THE NATIONWIDE HAUL EDGE - We finance All...

Condition	Used
Usage	557,742 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	405 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC36781MAC
MLS Number	14007858
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Macon, GA, US
Sold By	Nationwide Haul

(844) 912-___ SHOW
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2021 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Paccar 455HP, Automatic

Price Drop $41,900 USD

** !!ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC!!! DEF, DIESEL, ENGINE BRAKE, SLIDING 5TH WHEEL Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A...

Condition	Used
Usage	504,969 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	H02460
MLS Number	14006429
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Houston, TX, US
Sold By	Diamond Truck Sales Inc