Used Tandem Axle 6x4 Sleeper Semi Trucks For Sale

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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

Price Drop $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	4/3/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

(833) 490-___ SHOW
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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

(833) 490-___ SHOW
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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

(707) 849-___ SHOW
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2023 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

Newly Listed

$85,000 USD

2023 Freightliner Cascadia 126 – DD15 505HP – DT12 Auto – Low Miles, Clean, heavy-spec Cascadia 126 ready to go to work. This is a strong spec truck with big horsepower and the right...

Condition	Used
Usage	110,238 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
MLS Number	14287838
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(855) 910-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Newly Listed

$46,950 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, Oil Changed Every 45K...

Condition	Used
Usage	486,348 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	3539
MLS Number	14287357
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

(855) 591-___ SHOW
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2019 Freightliner Cascadia 125 Sleeper Semi Truck - 75" Mid Roof Sleeper, Detroit 455HP, 13 Speed Manual

Newly Listed

$54,900 USD

2019 Freightliner Cascadia 125 – 1 Owner, Fleet Maintained Cascadia!, Very clean, low-mile unit—hard to find spec! , 455 HP Detroit DD15 engine, , 13-speed Eaton Fuller manual transmission,...

Condition	Used
Usage	273,186 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	75"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	KT5187
MLS Number	14287352
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(833) 932-___ SHOW
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2024 Western Star 49X Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 560HP, 18 Speed Manual

Newly Listed

$164,500 USD

EW4 and Wiring Coverage until 12/28,

Condition	Used
Usage	155,658 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	83819
MLS Number	14287292
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Bangor, ME, US
Sold By	Freightliner of Maine

(833) 801-___ SHOW
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2013 Freightliner Cascadia 125 Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 450HP, 10 Speed Manual

Newly Listed

$7,500 USD

ENGINE TURNS OVER BUT WILL NOT START, SELL AS IS IN NON-RUNNING CONDITION! air seat, tilt/tele, differential lock, dump valve, sliding 5th!,

Condition	Used
Usage	640,606 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.58 ratio
Stock Number	13ISX640XTCAS
MLS Number	14287229
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

2015 Peterbilt 579 Sleeper Semi Truck - 72" Mid Roof Sleeper, Paccar 500HP, Manual

Newly Listed

$24,900 USD

Priced to Move! This 2015 with only 475k Miles is coming with a 500hp MX 13 Engine and Paired with a MANUAL 13 Speed Transmission! 72in Single bunk Mid Roof Sleeper with an Air Slide 5th...

Condition	Used
Usage	475,074 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.36 ratio
Stock Number	8680391
MLS Number	14287214
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Kronenwetter, WI, US
Sold By	JX Truck Center

2021 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 400HP, Automatic

Newly Listed

$54,900 USD

Priced to Sell! This 2021 Kenworth T680 is Coming to you with only 450k Miles and a Cummins X15 Engine and a 12 Speed Automatic Transmission; Double Bunk 76in Spacious Sleeper; Rear Bunk...

Condition	Used
Usage	450,496 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	8680402
MLS Number	14287213
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Rockford, IL, US
Sold By	JX Truck Center

2022 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, Automatic

Newly Listed

$49,900 USD

418284 Miles, Engine: PACCAR MX-13, 455 HP, Fuel Type: Diesel, Automatic Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 76, Wheel Base: 236,...

Condition	Used
Usage	418,284 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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	8680371
MLS Number	14287212
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Rockford, IL, US
Sold By	JX Truck Center

2021 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 400HP, Automatic

Newly Listed

$54,900 USD

Great Miles and JX Certified! This 2021 Kenworth T680 is Coming to you with a Cummins X15 Engine and a 12 Speed Automatic Transmission; Double Bunk 76in Spacious Sleeper; Rear Bunk Controls;...

Condition	Used
Usage	446,138 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	8680401
MLS Number	14287211
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Rockford, IL, US
Sold By	JX Truck Center

(833) 904-___ SHOW
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2012 Peterbilt 388 Sleeper Semi Truck - Flat Top Sleeper, Paccar 450HP, 10 Speed Manual

Newly Listed

$59,500 USD

2012 Peterbilt 388 Flattop Sleeper, 450hp Paccar MX-13, 10spd Manual Transmission, 400k Mi, Air ride suspension, 265in Wheelbase, Nationwide Delivery Available

Condition	Used
Usage	399,867 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	1918
MLS Number	14287189
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(855) 591-___ SHOW
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2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

Newly Listed

$57,900 USD

2022 Kenworth T680 Next Gen – 1 Owner, Fleet Maintained T680 Next Gen!, Well-equipped, road-ready, and backed by a 90-day warranty! , 450 HP Cummins X15 engine, , 12-speed Eaton Endurant...

Condition	Used
Usage	441,839 Miles
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
Rear End	2.79 ratio
Stock Number	472413
MLS Number	14287186
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(855) 591-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Amt

Newly Listed

$45,900 USD

2020 Freightliner Cascadia 126 – 1 Owner, Fleet Maintained Cascadia 126!, Clean, well spec’d, and ready to work! , 475 HP Detroit DD15 engine, , Detroit DT12 automatic transmission, , Condo...

Condition	Used
Usage	555,679 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	LZ7346
MLS Number	14287132
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

2022 Freightliner Cascadia 116 Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 450HP, 12 Speed Autoshift Automatic

Price Drop $52,950 USD

AVAILABLE FOR SALE WELL MAINTAINED 2022 FREIGHTLINER CASCADIA 116 SMALL SLEEPER SEMI TRUCK FOR SALE IN KANSAS CITY, MO. INSPECTED AND DETAILED PRIOR TO DELIVERY. With ONLY 370,149 miles and...

Condition	Used
Usage	9,794 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Autoshift Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	MO11195
MLS Number	14172294
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2022 Freightliner Cascadia 116 Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 450HP, 12 Speed Autoshift Automatic

Price Drop $52,950 USD

AVAILABLE FOR SALE WELL MAINTAINED 2022 FREIGHTLINER CASCADIA 116 SMALL SLEEPER SEMI TRUCK. With ONLY 380,567 miles and only 9.704 hours on the engine, this truck comes equipped with a 450...

Condition	Used
Usage	9,704 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Autoshift Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	MO11196
MLS Number	14172235
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2022 Freightliner Cascadia 116 Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 450HP, 12 Speed Autoshift Automatic

Price Drop $52,950 USD

AVAILABLE FOR SALE WELL MAINTAINED 2022 FREIGHTLINER CASCADIA 116 SMALL SLEEPER SEMI TRUCK FOR SALE IN KANSAS CITY, MO. INSPECTED AND DETAILED PRIOR TO DELIVERY. With ONLY 380,567 miles and...

Condition	Used
Usage	9,704 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Autoshift Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	MO11196
MLS Number	14172208
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 956-___ SHOW
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2013 Freightliner Cascadia 125 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 450HP, 10 Speed Manual

Recently Updated

$22,500 USD

773000 Miles, Engine: DETROIT DD13, 450 HP, Fuel Type: Diesel, 10 Speed Manual Transmission, Drive: 6x4, AirLiner Suspension, Sleeper Type: Mid Roof Sleeper, Wheels: Aluminum/Steel, Tandem...

Condition	Used
Usage	773,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	C5378
MLS Number	14160218
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	West Sacramento, CA, US
Sold By	DeWald Equipment

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Amt

Recently Updated

$69,950 USD

For Sale: 2023 Peterbilt 579 - Multiple Matching Units Available! Equipped with a 450hp Cummins X15, 12-Speed Automated Transmission, Thermo King APU, 80" Raised Roof Double Bunk Sleeper,...

Condition	Used
Usage	409,000 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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MO11161
MLS Number	14155886
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2020 Peterbilt 389 Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 605HP, Manual

Recently Updated

$94,900 USD

605HP Cummins X15 Engine with an 18 Speed MANUAL Transmission! This workhorse has 40k rears a wheelbase of 270in and a ratio of 3.58. Dual Stacks; Tons of Chrome including visor; air slide...

Condition	Used
Usage	572,228 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	78"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.58 ratio
Stock Number	8680127
MLS Number	13963633
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	Urbana, IL, US
Sold By	JX Truck Center

(855) 725-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Price Drop $65,000 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced performance, modern technology and driver-focused comfort, making it...

Condition	Used
Usage	512,652 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	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2626
MLS Number	13944364
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

(855) 725-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, Automatic

Recently Updated

$72,000 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced performance, modern technology and driver-focused comfort, making it...

Condition	Used
Usage	443,772 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2628
MLS Number	13944352
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation