6x4 Sleeper Semi Trucks with Cummins Engines For Sale

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2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, Manual

$46,900 USD

Sharp 2020 Kenworth T680 with a 450hp Cummins X15 Engine and a 13 Speed MANUAL Transmission! Spacious 76in Double Bunk Sleeper and only 461k miles! Heated Mirrors; Air Slide 5th Wheel; and...

Condition	Used
Usage	461,518 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	8680047
MLS Number	13963642
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Rockford, IL, US
Sold By	JX Truck Center

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$42,000 USD

Se habla español, 540k Miles, Many Available!, X15 – 450HP, 12 Speed Eaton Auto, Double bunk Condo, Aluminum wheels, Battery APU, Nice Rubber, Air Slide 5th Wheel, ParkSmart APU, Workstation...

Condition	Used
Usage	540,870 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	40,000 lb 2.79 ratio
Stock Number	399372
MLS Number	13601260
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2019 Peterbilt 579 Sleeper Semi Truck - Cummins 450HP, Automatic

$42,000 USD

504,110 Miles, Cummins X15 Engine, 450 H.P Engine Brake, Eaton Automatic Transmission, 80 Inch Ultra-Loft Sleeper, Upper Bunk, 40,000 Lb. Rear Ends, 2.79 Ratio, Air Ride Suspension,...

Condition	Used
Usage	504,110 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
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	633351
MLS Number	13586555
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$42,000 USD

X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, *Rep Photos - will update with actual photos soon**,

Condition	Used
Usage	549,500 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	40,000 lb 2.79 ratio
Stock Number	399381
MLS Number	13586523
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$44,500 USD

530,201 Miles, X15 – 450HP, 12 Speed Endurant Automatic, Double bunk, Aluminum wheels, Collision Mitigation System, Battery APU, Jakes, 2.79 Ratio, Disc Brakes, Aluminum Wheels, Air Slide...

Condition	Used
Usage	530,201 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399376
MLS Number	13586522
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$48,900 USD

400,974 Miles, Cummins X15 – 100th Anniversary Edition, 450 HP, Fully Automatic, Park Smart APU, Collision Mitigation System, Workstation, Double Bunk Condo, Nice Rubber, Fleet Maintained,...

Condition	Used
Usage	400,974 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
Sleeper Size	76"
Suspension	Paccar
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399406
MLS Number	13586520
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

430,655 Miles, Cummins X15 100th Anniversary Edition, 450HP, 12 Speed Eaton Automatic, Double Bunk, Aluminum wheels, Battery APU, Collision Mitigation System, Inverter, Air Slide 5th Wheel,...

Condition	Used
Usage	430,655 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
Sleeper Size	76"
Suspension	Paccar
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399405
MLS Number	13586519
Category	Sleeper Semi Trucks
Last Updated	12/29/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$50,500 USD

395,982 Miles, Cummins X15 – 450HP, 12 Speed Endurant Automatic, Double bunk, Aluminum wheels, Battery APU, 40k Rears, 13,200 Fronts, 2.79 Ratio, Collision Mitigation System, Bluetooth /...

Condition	Used
Usage	395,982 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	40,000 lb 2.79 ratio
Stock Number	399404
MLS Number	13586518
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$49,000 USD

*Rep Photos of Exterior - will update with actual photos soon**, 416,806 Miles, Cummins X15 – 450HP, 12 Speed Eaton Automatic, Double Bunk, Aluminum wheels, Battery APU, Collision Mitigation...

Condition	Used
Usage	416,806 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	40,000 lb 2.71 ratio
Stock Number	399403
MLS Number	13586516
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$43,000 USD

518,121 Miles, X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Collision Mitigation System, Fleet Maintained, APU, Air Slide 5th Wheel, 13,200 Fronts, 40,000 Rears, Aluminum...

Condition	Used
Usage	518,121 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
Sleeper Size	76"
Suspension	Paccar
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399402
MLS Number	13586515
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

457,401 Miles, Cummins X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, Workstation, Inter-Axle Lock, Air Suspension Dump, Fleet Maintained, Air Slide 5th Wheel,...

Condition	Used
Usage	456,000 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	40,000 lb 2.79 ratio
Stock Number	399401
MLS Number	13586514
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$48,000 USD

432,160 Miles, Cummins X15 – 450HP, 12 Speed Automatic, Double Bunk Sleeper, Aluminum wheels, Parksmart APU, Collision Mitigation System, Inverter, 2.79 Ratio, Fleet Maintained, Great...

Condition	Used
Usage	432,160 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	40,000 lb 2.79 ratio
Stock Number	399398
MLS Number	13586513
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$41,500 USD

553,229 Miles, X15 – 450HP, 450 HP, Eaton Endurant Auto, Double Bunk Sleeper, Aluminum wheels, Battery APU - Not Verified It Works, Air Slide 5th Wheel, 2.71 Ratio, Air Ride, Collision...

Condition	Used
Usage	553,229 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	40,000 lb 2.71 ratio
Stock Number	399393
MLS Number	13586511
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$49,900 USD

375,954 Miles, X15 – 450HP, 12 Speed Eaton Endurant Automatic, Double Bunk Sleeper, Aluminum wheels, Battery APU, Collision Mitigation System, 2.79 Ratio, 13200 Fronts, 40000 Rears, Powr...

Condition	Used
Usage	375,954 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	40,000 lb 2.79 ratio
Stock Number	399392
MLS Number	13586510
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

449,597 Miles, Cummins X15 – 100th Anniversary Edition, 450 HP, Fully Automatic, Park Smart APU, Collision Mitigation System, Workstation, Double Bunk Condo, Nice Rubber, Fleet Maintained,...

Condition	Used
Usage	449,597 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	40,000 lb 2.79 ratio
Stock Number	399391
MLS Number	13586509
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(844) 985-___ SHOW
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2022 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP, Automatic

$49,900 USD

LOADED! This 450hp Cummins powered 2022 International LT has a gone through an extensive 180 point dealer prep including a PM Services; All Air Filters Changed; a DPF Inspection; and a DOT...

Condition	Used
Usage	375,628 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	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	8679867
MLS Number	13566355
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Indianapolis, IN, US
Sold By	JX Truck Center

(833) 637-___ SHOW
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2012 Kenworth T800 Sleeper Semi Truck - Cummins, Manual

$74,900 USD

2012 Kenworth T800, Cummins ISX12 350hp, FRO16210C Manual 10 speed Transmission, 4.63 Ratio, 200 wb, lockers,, 117,219 Original Miles, 15' gravel body, air gate, 42" sides, pintle hitch...

Condition	Used
Usage	11,716 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	350 HP
Engine Model	Cummins ISX11.9
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	28"
Suspension	Neway
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.56 ratio
MLS Number	12250425
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	WINGER, MN, US
Sold By	Lucken Trucks and Parts

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	430,254 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	40,000 lb 2.85 ratio
Stock Number	14862
MLS Number	13763040
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	419,795 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	40,000 lb 2.85 ratio
Stock Number	14859
MLS Number	13763036
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	416,389 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	40,000 lb 2.85 ratio
Stock Number	14852
MLS Number	13763033
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	431,972 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	40,000 lb 2.85 ratio
Stock Number	14863
MLS Number	13763042
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Contact for price

MyLittleSalesman Print Ad – 2022 Kenworth T880 (Stock #6835), 2022 KENWORTH T880 – PACCAR MX-13 / ENDURANT AUTO / 76" SLEEPER Stock #6835|297,741 Verified Miles|DOT Ready Southern truck...

Condition	Used
Usage	445,413 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	40,000 lb 2.85 ratio
Stock Number	6835
MLS Number	13786860
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	445,254 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	40,000 lb 2.85 ratio
MLS Number	13791327
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Contact for price

SOUTHERN TRUCK, CUMMINS POWER, FRIDGE, INVERTER, BUNK HEATER, DISC BRAKES, 76" BUNK, DIGITAL DASH, COLLISION MITIGATION, DUAL STACKS. CALL FOR MORE INFO,

Condition	Used
Usage	405,377 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	40,000 lb 2.85 ratio
Stock Number	14888
MLS Number	13794372
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC