Automatic 6x4 Sleeper Semi Trucks For Sale by Dealerships

(844) 687-___ SHOW
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Featured Item

2024 Kenworth T680 Sleeper Semi Truck - 52" Mid Roof Sleeper, Paccar 510HP, 12 Speed Endurant Automatic

Price Drop $87,950 USD

2024 Kenworth T680 – Low Miles, Long Warranty, Ready to Roll. This 2024 Kenworth T680 is a standout late-model sleeper with only 120,000 verified miles and exceptional factory warranty...

Condition	Used
Usage	120,165 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	52"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	CO11033
MLS Number	14053873
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(707) 849-___ SHOW
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Featured Item

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

Price Drop $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

2022 Volvo VNL Sleeper Semi Truck, APU, D13 , 455HP , WARRANTY AND FINANCING AVAILABLE

$53,950 USD

Ready to hit the road in style and reliability? This 2022 Volvo VNL 760 sleeper is powered by a proven D13 engine delivering 455 horsepower, paired with 2.47 rears for excellent fuel...

Warranty

Condition	Used
Usage	10,322 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	Condo Sleeper
Sleeper Size	70"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	U605486
MLS Number	14138506
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(844) 687-___ SHOW
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Tri State Truck Center - Springfield, MO

Featured Item

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$109,950 USD

2023 Freightliner Cascadia 126 Sleeper – Detroit DD15 450 HP, DT12 Automatic, 76” Raised Roof Double Bunk, 191K Miles This 2023 Freightliner Cascadia 126 is a well-maintained, Class 8...

Condition	Used
Usage	191,443 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 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
Stock Number	MO11105
MLS Number	14109181
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(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	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(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

$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	2/24/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

(833) 490-___ SHOW
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Featured Item

2023 Freightliner Cascadia 126 Sleeper, New Drive Tires, FACTORY WARRANTY REMAINING , Cummins X15 Engine , 500HP !!! Fridge , Apu , Financing

$62,950 USD

For sale: a powerhouse 2023 Freightliner Cascadia with just 488,000 well-maintained miles, ready to tackle your heaviest hauls! Powered by the legendary Cummins X15 500HP engine paired with...

Warranty

Condition	Used
Usage	488,847 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	Condo Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	UUG1661
MLS Number	13999600
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

2022 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 455HP, Automatic

Price Drop $39,999 USD

Very Nice 2022 Peterbilt 579 with a FULL PREP work up just for you! This truck has received our 180 point dealer inspection including a PM Service; all filters changed; a DPF Inspection AND...

Condition	Used
Usage	552,202 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	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	8679840
MLS Number	13489642
Category	Sleeper Semi Trucks
Last Updated	2/25/2026
Location	Urbana, IL, US
Sold By	JX Truck Center

2020 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 430HP, Automatic

Recently Updated

$39,900 USD

NICE! 430HP Paccar MX13 Engine paired with a 12 Speed Automatic Transmission. This unit has been equipped with Adaptive Cruise Control; Lane Departure Systems; Collision Avoidance System;...

Condition	Used
Usage	422,456 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	430 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	8679791
MLS Number	13435613
Category	Sleeper Semi Trucks
Last Updated	2/25/2026
Location	Pewaukee, WI, US
Sold By	JX Truck Center

2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, Automatic

Newly Listed

$79,900 USD

316597 Miles, Engine: CUMMINS X15, 450 HP, Fuel Type: Diesel, Automatic Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 80, Wheel Base: 240,...

Condition	Used
Usage	316,597 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	8680297
MLS Number	14159883
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Rockford, IL, US
Sold By	JX Truck Center

2024 Volvo VNL64T860 Sleeper Semi Truck - 77" Raised Roof Sleeper, D13TC 455HP, Automatic

Newly Listed

$119,850 USD

EP2 WARRANTY!! APU! Fleet Maintained! This truck is STACKED! 2024 Volvo VNL64T860 with ONLY 222k Miles; Powered by a 455hp D13 TURBO COMPOUNDING Motor and paired with Volvos very own iShift...

Condition	Used
Usage	222,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Volvo D13TC
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	77"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb 2.47 ratio
Stock Number	8680335
MLS Number	14159882
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Indianapolis, IN, US
Sold By	JX Truck Center

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle - Manager's Special!

Price Drop $99,900 USD

Condition	Used
Usage	229,303 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15 GEN5
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	31651
MLS Number	13668177
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Wilmer, TX, US
Sold By	Schneider

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle - Manager's Special!

Price Drop $99,900 USD

Condition	Used
Usage	239,081 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15 GEN5
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	32028
MLS Number	13854019
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Indianapolis, IN, US
Sold By	Schneider

2020 Freightliner Cascadia Sleeper Semi Truck - 72" Extra-Tall Roof, Detroit, Automatic - Manager's Special!

Recently Updated

$49,900 USD

Condition	Used
Usage	376,648 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD13 EPA 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	12261
MLS Number	13984700
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Carlisle, PA, US
Sold By	Schneider

2023 Freightliner Cascadia - 72" Raised Roof w/ Lounge, Detroit, Automatic, TriPac & Battery Powered HVAC with Optimized Idle, Headache Rack

Recently Updated

$89,200 USD

Condition	Used
Usage	386,402 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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	2.28 ratio
Stock Number	75227
MLS Number	13695783
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Gary, IN, US
Sold By	Schneider

(844) 624-___ SHOW
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2021 Kenworth W990 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Recently Updated

$84,950 USD

2021 Kenworth W990 sleeper truck offers premium features and a strong spec for owner-operators and fleets alike. Highlighted upgrades include chicken lights, a full gauge package, in-dash...

Condition	Used
Usage	483,049 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	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.87 ratio
Stock Number	CO11128
MLS Number	14120119
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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2021 Kenworth W990 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Recently Updated

$84,950 USD

2021 Kenworth W990 sleeper truck offers premium features and a strong spec for owner-operators and fleets alike. Highlighted upgrades include chicken lights, a full gauge package, in-dash...

Condition	Used
Usage	483,049 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	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.87 ratio
Stock Number	CO11128
MLS Number	14120116
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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2019 Peterbilt 579 Sleeper Semi Truck - 80" Mid Roof Sleeper, Paccar 455HP, 12 Speed Endurant Automatic

Recently Updated

$32,950 USD

AVAILABLE FOR SALE: 2019 PETERBILT 579 SLEEPER IN KANSAS CITY, MO C FUEL-EFFICIENT, DRIVER-FOCUSED, AND READY TO WORK!!! CALL AMERICAN TRUCK CENTERS FOR MORE INFO Selling a well-maintained...

Condition	Used
Usage	538,858 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MO11032
MLS Number	14064735
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 900-___ SHOW
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2021 Freightliner Cascadia 116 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$44,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 SPEED AUTOMATIC!!! SLIDING 5TH WHEEL, AIR RIDE, DEF, APU!!! Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7...

Condition	Used
Usage	533,111 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	57"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	L01589-DELIVERY 2 U
MLS Number	13963969
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(844) 216-___ SHOW
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2019 Peterbilt 579 Sleeper Semi Truck - Paccar, Automatic

Recently Updated

$12,000 USD

TriPac APU,

Condition	Used
Usage	631,230 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	234343
MLS Number	13481348
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle - Manager's Special!

Price Drop $86,900 USD

Condition	Used
Usage	347,292 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15 GEN5
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	30921
MLS Number	13980459
Category	Sleeper Semi Trucks
Last Updated	2/23/2026
Location	PHOENIX, AZ, US
Sold By	Schneider

2023 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle - Manager's Special!

Recently Updated

$71,700 USD

Condition	Used
Usage	391,329 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	2.15 ratio
Stock Number	54201
MLS Number	12842253
Category	Sleeper Semi Trucks
Last Updated	2/23/2026
Location	West Memphis, AR, US
Sold By	Schneider

2020 Freightliner Cascadia Sleeper Semi Truck - 48" Extra-Tall Roof, Detroit, Automatic - Manager's Special!

Recently Updated

$49,900 USD

Condition	Used
Usage	342,706 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13 EPA 17
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	48"
Rear Axle	Tandem Axle
Rear End	2.47 ratio
Stock Number	51168
MLS Number	13333300
Category	Sleeper Semi Trucks
Last Updated	2/23/2026
Location	Wilmer, TX, US
Sold By	Schneider

(855) 717-___ SHOW
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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Automatic

Recently Updated

$56,900 USD

** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! ***, DEF, AIR RIDE, AUTOMATIC, Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! Disclaimer:, “All...

Condition	Used
Usage	491,063 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 2.28 ratio
Stock Number	N15121-DELIVERY 2 U
MLS Number	13747992
Category	Sleeper Semi Trucks
Last Updated	2/24/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc