Heavy Duty 6x4 Sleeper Semi Trucks For Sale

(833) 490-___ SHOW
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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

Recently Updated

$33,950 USD

Picture this: you climb into the cab of this rock-solid 2021 International, fire up the powerful Cummins X15 engine with 450hp, and feel the smooth pull of the 12 speed automatic...

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	7/22/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 490-___ SHOW
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2020 International LT625 Sleeper , 90Day Warranty Included , Cummins Engine , Financing For All Credit Types!!!

Recently Updated

$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	7/22/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 478-___ SHOW
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2017 Mack Pinnacle CXU613 Sleeper Semi Truck - 40" Flat Top Sleeper, MP8 415HP, 12 Speed M Drive Automatic

Recently Updated

$35,495 USD

2017 MACK CXU613 EQUIPPED WITH MP8 AND MDRIVE AUTOMATED TRANSMISSION. 2.64 RAR, DISC BRAKES AND 212 WHEELBASE MAKES THIS 40" MIDROOF SLEEPER A VERSITILE TRUCK YOU CAN USE FOR ALMOST ANY...

Condition	Used
Usage	673,393 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	415 HP
Engine Model	Mack MP8
Drivetrain	6x4
Transmission	12 Speed mDRIVE Automatic
Sleeper Type	Flat Top Sleeper
Sleeper Size	40"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	7309
MLS Number	14380950
Category	Sleeper Semi Trucks
Last Updated	7/23/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(844) 861-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck

Newly Listed

$47,900 USD

Specifications , 2020 Kenworth T680 , 500,000 Miles , Raised Roof Sleeper , Thermoking APU , Super Single Tires , Air Ride Suspension , Sliding Fifth Wheel ,...

Condition	Used
Usage	500,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	405 HP
Engine Model	Paccar MX/MX-13
Drivetrain	6x4
Transmission	Automatic
Rear Axle	Tandem Axle
MLS Number	14499298
Category	Sleeper Semi Trucks
Last Updated	7/23/2026
Location	Sapulpa,
Sold By	R Thomas Equipment

(844) 321-___ SHOW
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2024 Volvo VNL64T860 Sleeper Semi Truck - 86" Raised Roof Sleeper, D13 500HP, 12 Speed I Shift Automatic

Newly Listed

$102,000 USD

VOLVO P2 WARRANTY,

Condition	Used
Usage	340,200 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	86"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	1754
MLS Number	14499193
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Automatic

Newly Listed

$79,950 USD

1 Year Warranty on Engine/Aftertreatment from Freightliner!,

Condition	Used
Usage	472,921 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	CO11784
MLS Number	14499126
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Automatic

Newly Listed

$79,950 USD

1 Year Warranty on Engine/Aftertreatment from Freightliner!,

Condition	Used
Usage	14,453 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	CO11784
MLS Number	14499125
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2018 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 560HP, 12 Speed Dt12 Automatic

Newly Listed

$44,950 USD

560000 Miles, Engine: DETROIT DD16, 560 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72,...

Condition	Used
Usage	560,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	Detroit DD16
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 3.25 ratio
Stock Number	JR6393
MLS Number	14499101
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2018 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 560HP, 12 Speed Dt12 Automatic

Newly Listed

$44,950 USD

560000 Miles, Engine: DETROIT DD16, 560 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72,...

Condition	Used
Usage	560,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	Detroit DD16
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 3.25 ratio
Stock Number	JR6393
MLS Number	14499099
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(866) 530-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Newly Listed

$71,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15 LOW ENGINE HOURS, DETROIT DT12 AUTOMATIC TRANSMISSION, 530,099 MILES, DIESEL APU, REFRIGERATOR, COLLISION MITIGATION SYSTEM, BLIND SPOT...

Condition	Used
Usage	530,099 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
Rear End	40,000 lb
Stock Number	4777
MLS Number	14499081
Category	Sleeper Semi Trucks
Last Updated	7/23/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(855) 591-___ SHOW
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2019 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

$28,900 USD

2019 Peterbilt 579 – 1 Owner, Fleet Maintained Peterbilt 579!, Very well-maintained Peterbilt with all service records, an APU, and remaining 700k Engine Major Components warranty! , 455 HP...

Condition	Used
Usage	14,206 Hours
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	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	009545
MLS Number	14499060
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

2021 International LoneStar Sleeper Semi Truck - Raised Roof Sleeper, Cummins 485HP, 12 Speed Ultrashift Plus Amt

Newly Listed

$87,500 USD

2021 International Lonestar, X15 Cummins 485 Hp, 12 Spd Automated, 233k Mi, Nationwide Delivery Available,

Condition	Used
Usage	233,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Ultrashift Plus Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	7223
MLS Number	14499032
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

2000 Peterbilt 379 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

Newly Listed

$45,500 USD

2000 Peterbilt 379, 500hp Cummins N-14, 18spd Manual Transmission, 2 Million Mi - very clean - great running truck - but no service records, Air ride suspension, 260in Wheelbase, Nationwide...

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	14499029
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

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	14499025
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

2021 International LoneStar Sleeper Semi Truck - Raised Roof Sleeper, Cummins 485HP, 12 Speed Ultrashift Plus Amt

Newly Listed

$89,500 USD

2021 International Lonestar, X15 Cummins 485 Hp, 12 Spd Automated, 228k Mi, Nationwide Delivery Available,

Condition	Used
Usage	228,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Ultrashift Plus Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2042
MLS Number	14499023
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(833) 801-___ SHOW
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2010 Freightliner Columbia 120 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 490HP, 10 Speed Manual

Newly Listed

$18,000 USD

NICE TRUCK, RUNS EXCELLENT, LOW MILEAGE, SLIDING 5TH WHEEL, AIR SEAT, DIFFERENTIAL LOCK, DUMP VALVE! *TITLE DELAY,

Condition	Used
Usage	509,110 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	490 HP
Engine Model	Detroit SERIES 60 14.0 DDEC VI
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	10DET509C120
MLS Number	14498991
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 801-___ SHOW
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2016 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 425HP, 10 Speed Manual

Newly Listed

$18,000 USD

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

Condition	Used
Usage	1,003,378 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.53 ratio
Stock Number	16ISX100T680
MLS Number	14498337
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(844) 985-___ SHOW
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2025 Peterbilt 589 Sleeper Semi Truck - 80" Mid Roof Sleeper, Cummins 605HP, 18 Speed Manual

Recently Updated

$187,900 USD

Peterbilt 589! 605HP! 18 Speed Manual Transmission on a Cummins X15 Engine! Dual Exhaust; Stainless Steel Visor; Air Slide 5th Wheel; Rear Door Access; High Roof 80in Single Bunk Sleeper;...

Condition	Used
Usage	77,001 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	8680454
MLS Number	14481510
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Pewaukee, WI, US
Sold By	JX Truck Center

(855) 807-___ SHOW
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2021 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated

$64,500 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,FRIDGE, COLLISION...

Condition	Used
Usage	250,000 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	7329
MLS Number	14471223
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(844) 321-___ SHOW
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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 470HP, 12 Speed Dt12 Automatic

Recently Updated

$72,900 USD

Manufacturer’s Engine Warranty: Balance of Detroit Diesel 6 Year/600,000 EW4 Coverage. In Service: 1/3/2021,

Condition	Used
Usage	9,329 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	470 HP
Engine Model	Detroit DD13
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 2.79 ratio
Stock Number	1751
MLS Number	14453163
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(855) 981-___ SHOW
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2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Paccar 510HP, Automatic

Recently Updated

$48,900 USD

2022 Kenworth T680 Sleeper Tractor Sold As-Is Specs:, -Mileage: 338,373, -Drive: 6x4, -Engine: Paccar MX-13, -Transmission: Automatic, -Dual Tires, -Wheels: All Aluminum, -Double Bunk...

Condition	Used
Usage	338,373 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 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
Stock Number	TNHC51686LAK Web
MLS Number	14450881
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

(855) 981-___ SHOW
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2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Paccar 510HP, Automatic

Recently Updated

$48,900 USD

2022 Kenworth T680 Sleeper Tractor Sold As-Is Specs:, -Mileage: 338,373, -Drive: 6x4, -Engine: Paccar MX-13, -Transmission: Automatic, -Dual Tires, -Wheels: All Aluminum, -Double Bunk...

Condition	Used
Usage	338,373 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 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
Stock Number	TNHC51686LAK
MLS Number	14450879
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

(833) 538-___ SHOW
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2023 Peterbilt 389 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 500HP, 13 Speed Manual

Price Drop $120,900 USD

Explore this 2023 Peterbilt 389 for your operation. This used Class 8 sleeper truck is powered by a 15L Cummins X15 diesel engine delivering 500 HP. It features a 13-speed manual...

Condition	Used
Usage	8,076 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.93 ratio
Stock Number	4114
MLS Number	14431807
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Idaho Falls, ID, US
Sold By	Dad's Truck and Trailer Sales

(833) 538-___ SHOW
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2023 Peterbilt 389 Sleeper Semi Truck - 78" Mid Roof Sleeper, Cummins 565HP, 18 Speed Manual

Price Drop $109,900 USD

506303 Miles, 13261 Hours, Engine: CUMMINS X15, 565 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Mid Roof Sleeper, Sleeper Size: 78,...

Condition	Used
Usage	13,261 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	78"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	4058
MLS Number	14418238
Category	Sleeper Semi Trucks
Last Updated	7/22/2026
Location	Idaho Falls, ID, US
Sold By	Dad's Truck and Trailer Sales