Used 6x4 Sleeper Semi Trucks For Sale in United States

(209) 229-___ SHOW
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Featured Item

2015 Freightliner Cascadia 125 Sleeper Semi Truck

Price Drop $25,000 USD

🔥FOR SALE: 2015 Freightliner Cascadia – Owner Spec, Road Ready!🔥, If you’re looking for a dependable, well-maintained truck that’s ready to hit the road TODAY, this is it 🚛Details:,...

Condition	Used
Usage	712,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit Detroit Diesel DD15 EV
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Double Bunk
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.55 ratio
MLS Number	14280285
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	TRACY, CA, US
Sold By	Caudill Enterprises LLC

(833) 658-___ SHOW
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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

$149,999 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	4/10/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

Featured Item

2020 International LT625 Sleeper , 90Day Warranty Included , Cummins Engine , Financing For All Credit Types!!!

$38,950 USD

Ready to hit the road in a powerful and reliable workhorse? This 2020 International LT is powered by a Cummins X15 engine delivering a strong 425hp, paired with a smooth automatic...

Warranty

Condition	Used
Usage	465,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	10 Speed Ultrashift Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	73"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	U821561
MLS Number	14263432
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(707) 849-___ SHOW
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Tri State Truck Center - Springfield, MO

Featured Item

2022 Peterbilt 567 Sleeper Semi Truck - Flat Top Sleeper, Paccar 455HP, 10 Speed Ultrashift Automatic

$83,500 USD

2022 Peterbilt 567 Flat Top Sleeper 218K miles, Paccar MX13 Engine, 455HP, Eaton Automatic Transmission, 52350lb GVW Excellent Shape ready for work,

Condition	Used
Usage	218,838 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	10 Speed Ultrashift Automatic
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	14096949
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

Featured Item

2021 International LT625 Sleeper, Affordable, Cummins X15 450hp, Dot Passing, Fresh Detail, Warranty Options , Zero Down Financing (WAC)

$39,950 USD

Grab this road-ready 2021 International LT before it’s gone—low-mileage Cummins X15 450HP powerhouse, butter-smooth 12-speed automatic, 215 WB, 2.79 rears with massive 200-gallon fuel...

Warranty

Quantity	13
Condition	Used
Usage	497,005 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	56"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.00 ratio
Stock Number	U066841
MLS Number	13999606
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

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

Recently Updated

$43,500 USD

CLEAN FLEET MAINTAINED 2021 INTERNATIONAL LT, CULMMINS X15, 450HP, 12 SPEED AUTO TRANSMISSION, 2.64 RATIOS, 73" DOUBLE BUNK CONDO SLEEPER, NO CODES, NO LEAKS, GOOD RUBBER, READY TO WORK!...

Condition	Used
Usage	420,533 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed 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	7207
MLS Number	14234082
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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

Recently Updated

$50,500 USD

CLEAN FLEET MAINTAINED 2021 INTERNATIONAL LT, CULMMINS X15, 450HP, 12 SPEED AUTO TRANSMISSION, 2.64 RATIOS, 73" DOUBLE BUNK CONDO SLEEPER, NO CODES, NO LEAKS, GOOD RUBBER, READY TO WORK!...

Condition	Used
Usage	309,538 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed 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	7215
MLS Number	14234096
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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

Recently Updated

$45,500 USD

FLEET MAINTAINED 2021 INTERNATIONAL LT625, CUMMINS X15, 450HP, 12 SPEED EATON AUTO TRANSMISSION, COLLISION MITIGATION SYSTEM, DOUBLE BUNK, 73" CONDO SLEEPER, NO CODES, NO LEAKS, READY TO...

Condition	Used
Usage	380,146 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	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	7219
MLS Number	14255597
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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

Newly Listed

$45,500 USD

FLEET MAINTAINED 2021 INTERNATIONAL LT625, CUMMINS X15, 450HP, 12 SPEED EATON AUTO TRANSMISSION, COLLISION MITIGATION SYSTEM, DOUBLE BUNK, 73" CONDO SLEEPER, GVWR: 52,350, NO CODES, NO LEAKS...

Condition	Used
Usage	374,099 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed 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	7243
MLS Number	14296355
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

2021 Volvo VNL Sleeper Semi Truck, DOUBLE BUNK , D13 ENGINE , 455HP , 1850 TORQUE , WARRANTY AVAILABLE

Newly Listed

$57,950 USD

Warranty

Quantity	2
Condition	Used
Usage	464,678 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	Mid Roof Sleeper
Sleeper Size	70"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	U197248
MLS Number	14303418
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

2021 International LT Sleeper Semi Truck, Cummins x15 , 450hp , APU ,12-Speed Automatic, Financing for ALL CREDIT Types, Warranty Options Available

Price Drop $42,950 USD

Warranty

Condition	Used
Usage	10,760 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	U184436
MLS Number	14263456
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

2021 International LT625 Sleeper Semi Truck, Cummins x15 , 450hp , APU , 12-Speed Automatic, Financing for ALL CREDIT Types , Warranty Options

Price Drop $33,950 USD

Warranty

Condition	Used
Usage	13,904 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15, Signature
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	U866825
MLS Number	14263457
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 904-___ SHOW
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2000 Peterbilt 379 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

Newly Listed

$45,500 USD

2000 Peterbilt 379 Midroof Sleeper, 500hp Cummins N-14, 18spd Manual Transmission, 2 Million Mi, Air ride suspension, 260in Wheelbase, Nationwide Delivery Available

Condition	Used
Usage	2,082,095 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins N14
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	36,000 lb
Stock Number	5985
MLS Number	14302569
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(833) 478-___ SHOW
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2019 Peterbilt 579 Sleeper Semi Truck - 70" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Newly Listed

Contact for price

Local trade with all the right specs. Cummins Power with Endurant trans. APU that has recently been serviced. Great starter truck. Call today,

Condition	Used
Usage	555,027 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX15 450ST
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	38,000 lb 2.79 ratio
Stock Number	7281
MLS Number	14302519
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2023 Peterbilt 567 Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 525HP, 18 Speed Manual

Recently Updated

$129,500 USD

2023 PETERBILT 567, LOW MILES, CUMMINS 525HP, EATON 18 SPEED MANUAL TRANSMISSION, DOUBLE FRAMED, 14,320 FAW, 60,320 GVW, AIR TRAC SUSPENSION, 3.73 RATIO. GREAT TIRES 24.5 DUAL EXHAUST,,

Condition	Used
Usage	185,485 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
Stock Number	7233
MLS Number	14282465
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(855) 717-___ SHOW
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2022 Peterbilt 389 Sleeper Semi Truck - 72" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

Recently Updated

$124,900 USD

“Located at our specialty location in Modesto, CA- 20 min from our ALPINE Turlock location” *** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** MANUAL 18 SPEED!! CUMMINS!! SLIDING...

Condition	Used
Usage	496,884 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.36 ratio
Stock Number	N15403-DELIVERY 2 U
MLS Number	14273303
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

(833) 781-___ SHOW
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2023 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

Recently Updated

$75,700 USD

Condition	Used
Usage	368,335 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15GHG21
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	30668
MLS Number	13463653
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Schneider

(833) 781-___ SHOW
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2022 Volvo VNL860 Semi Truck - 77" Raised Roof Double Bunk Sleeper w/ Lounge, D13, Automatic, Battery Powered HVAC with Optimized Idle

Recently Updated

$66,200 USD

Condition	Used
Usage	487,581 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	77"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	74383
MLS Number	14155338
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Gary, IN, US
Sold By	Schneider

(844) 321-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$89,900 USD

WARRANTY COVERAGES 5Y/500K ML: EXTENDED TRUCK COVERAGE 4, ENGINE MAJOR COMPONENTS PARTS ONLY, EXTENDED DETROIT EW4 ENGINE COVERAGE. BASIC TRANSMISSION COVERAGE 5Y/750K ML. IN SERVICE DATE:...

Condition	Used
Usage	8,718 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	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	1734
MLS Number	14271520
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

2020 Kenworth T680 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 450HP, 10 Speed Smart Advantage Automatic

Recently Updated

$34,900 USD

CLEAN 2020 KENWORTH T680, CUMMINS X15, 450HP, EATON 10SPEED EATON AUTO TRANSMISSION, 225" WHEELBASE, 76" DOUBLE BUNK SLEEPER, ALUMINUM WHEELS WITH NEW VIRGIN RUBBER, INVERTER, COLLISION...

Condition	Used
Usage	658,379 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	10 Speed Smart Advantage Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	7216
MLS Number	14167296
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

2019 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 10 Speed Automatic

Recently Updated

$34,500 USD

FLEET MAINTAINED 2019 INTERNATIONAL LT625, CUMMINS X15, 450HP, 10 SPEED EATON AUTO TRANSMISSION, 3.25 RATIOS, COLLISION MITIGATION SYSTEM, DOUBLE BUNK, DESKTOP,73" CONDO SLEEPER, GOOD RUBBER...

Condition	Used
Usage	393,673 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	10 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	7203
MLS Number	14161845
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(833) 801-___ SHOW
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2020 Volvo VNL64T740 Sleeper Semi Truck - 78" Mid Roof Sleeper, D13 455HP, 12 Speed I Shift Amt

Recently Updated

$30,000 USD

NICE TRUCK, RUNS EXCELLENT, AIR SEATS, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH WHEEL, WELL MAINTAINED TRUCK!,

Condition	Used
Usage	593,189 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	78"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	20D13593VNL740
MLS Number	14158144
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 781-___ SHOW
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2022 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Battery Powered HVAC with Optimized Idle

Newly Listed

$79,700 USD

Condition	Used
Usage	284,211 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15GHG21
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	52466
MLS Number	14302059
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Gary, IN, US
Sold By	Schneider

(855) 489-___ SHOW
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2023 Peterbilt 389 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 565HP, 18 Speed Manual

Recently Updated

$145,000 USD

Cummins 565hp w/2050 FT LB Torque and 18 Speed Manual Transmission, Includes 6 month/50k Mile Premium 2000 Warranty (Engine, Turbo, Injectors, Aftertreatment), 72" Raised Roof, Single Bunk,...

Condition	Used
Usage	410,574 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2211
MLS Number	14228787
Category	Sleeper Semi Trucks
Last Updated	4/10/2026
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC