Used 6x4 Sleeper Semi Trucks For Sale in United States

2025 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$99,995 USD

2025 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, 505 HP / GEN5, DETROIT DT12 AUTOMATIC TRANSMISSION, 413,718 MILES, FLEET MAINTAINED MULTIPLE UNITS ARE AVAILABLE FINANCING...

Condition	Used
Usage	413,718 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	8269
MLS Number	14360379
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(855) 807-___ SHOW
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2023 Freightliner Coronado 122 SD Sleeper Semi Truck - 70" Mid Roof Sleeper, Detroit 505HP, 18 Speed Ultrashift Automatic

$124,500 USD

2023 FREIGHTLINER CORANADO SD122, LOW MILES, DETROIT DD13 505HP, EATON 18 SPEED AUTO TRANSMISSION, DOUBLE FRAMED, 14,320 FAW, GVW, 60,320, 46K REARS, AIR LINE SUSPENSION, 3.73 RATIO. GREAT...

Condition	Used
Usage	155,328 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	18 Speed Ultrashift Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
Stock Number	7249
MLS Number	14342875
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

2022 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$72,995 USD

2022 KENWORTH T680 NEXT-GEN, CUMMINS X15 ENGINE, AUTOMATIC TRANSMISSION, 458,528 MILES, FLEET MAINTAINED, READY TO WORK MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT...

Condition	Used
Usage	458,528 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2411
MLS Number	14306612
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Peterbilt 579 Sleeper Semi Truck - Cummins 450HP, Automatic

$67,995 USD

2022 PETERBILT 579 EPIQ, CUMMINS X15 ENGINE, AUTOMATIC TRANSMISSION, 483,159 MILES, FLEET MAINTAINED MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN...

Condition	Used
Usage	483,159 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	0671
MLS Number	14236834
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$69,995 USD

2022 PETERBILT 579 EPIQ, CUMMINS X15 ENGINE, AUTOMATIC TRANSMISSION, 463,324 MILES, FLEET MAINTAINED MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN...

Condition	Used
Usage	463,324 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	0743
MLS Number	14230313
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$73,995 USD

2022 PETERBILT 579 EPIQ, CUMMINS X15 ENGINE, AUTOMATIC TRANMISSION, 425,564 MILES, FLEET MAINTAINED MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN...

Condition	Used
Usage	425,564 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	0761
MLS Number	14230312
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Peterbilt 579 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$74,995 USD

2022 PETERBILT 579, CUMMINS X15 ENGINE, AUTOMATIC TRANSMISSION, 421,797 MILES, FLEET MAINTAINED MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE...

Condition	Used
Usage	421,797 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	0744
MLS Number	14230311
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$81,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15, 505 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 412,134 MILES, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	412,134 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	2812
MLS Number	14229254
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2023 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$84,995 USD

2023 FREIGHTLINER CASCADIA 126, DETROIT DD15, GEN 5 / 505 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 398,457 MILES, 240 GALLONS FUEL TANKS, UNDER FACTORY WARRANTY, FLEET MAINTAINED...

Condition	Used
Usage	398,457 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	6634
MLS Number	14172583
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$70,995 USD

2021 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 424,183 MILES, FLEET MAINTAINED MULTIPLE UNITS AVAILABLE FINANCING AVAILABLE FOR ALL CREDIT TYPES...

Condition	Used
Usage	424,183 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	7381
MLS Number	14156084
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, Automatic

$74,900 USD

CUMMINS POWERED ULTRALOFT! 2023 Peterbilt 579 Double Bunk Sleeper with only 386k Miles is now available for sale! This unit is powered by a 450hp Cummins X15 Engine and Paired with a 12...

Condition	Used
Usage	386,250 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 2.79 ratio
Stock Number	8680294
MLS Number	14149537
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Bolingbrook, IL, US
Sold By	JX Truck Center

2024 Kenworth T680 Sleeper Semi Truck - Paccar 455HP, Automatic

$74,995 USD

2024 KENWORTH T680 NEXTGEN, PACCAR MX 13 ENGINE, AUTOMATIC TRANSMISSION, 329,211 MILES, ORIGINAL TIRES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	329,211 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	0931
MLS Number	14142910
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 909-___ SHOW
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2017 Freightliner Cascadia 113 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 500HP, Automatic

$30,000 USD

2017 Freightliner Cascadia 113, Detroit DD15 500 HP, 880K miles, Engine overhaul done at 773k with Paperwork, Inter-axle differential lock, Automatic Transmission, Sliding 5th wheel plate,...

Condition	Used
Usage	888,664 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	14130889
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Paul, ID, US
Sold By	BTR Sales

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$77,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15 GEN 5 455 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 434,416 MILES FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	434,416 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	3383
MLS Number	14083864
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, Automatic

$64,900 USD

LOW MILE ULTRALOFT! This LOW MILE 2021 Peterbilt 579 is powered by a 450hp Cummins X15 Engine and paired with a 12 Speed Automatic Transmission! This unit has a spacious 80in Double Bunk...

Condition	Used
Usage	306,828 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	8680093
MLS Number	13943087
Category	Sleeper Semi Trucks
Last Updated	7/1/2026
Location	Indianapolis, IN, US
Sold By	JX Truck Center

(833) 781-___ SHOW
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2025 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$93,700 USD

Condition	Used
Usage	411,775 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	33066
MLS Number	14452348
Category	Sleeper Semi Trucks
Last Updated	6/29/2026
Location	Indianapolis, IN, US
Sold By	Schneider

(833) 781-___ SHOW
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2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$82,200 USD

Condition	Used
Usage	443,587 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 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	2.15 ratio
Stock Number	32424
MLS Number	14452347
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Indianapolis, IN, US
Sold By	Schneider

2021 Kenworth T680 Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic

$69,995 USD

2021 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 397,000 MILES, APU, FLEET MAINTAINED, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	397,314 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	466024
MLS Number	13542261
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Kenworth T680 Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic

$71,995 USD

2021 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 366,946 MILES, APU, FLEET MAINTAINED, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	366,946 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	6022
MLS Number	13540152
Category	Sleeper Semi Trucks
Last Updated	6/26/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Kenworth T680 Sleeper Semi Truck - Mid Roof Sleeper, Cummins 450HP, Amt

$59,995 USD

2021 KENWORTH T680, CUMMINS X15, AUTOMATIC TRANSMISSION, 432,227 MILES, FLEET MAINTAINED, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED CREDIT,...

Condition	Used
Usage	432,227 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	Automated
Sleeper Type	Mid Roof Sleeper
Rear Axle	Tandem Axle
Stock Number	5410
MLS Number	13436923
Category	Sleeper Semi Trucks
Last Updated	6/29/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2020 Peterbilt 389 Sleeper Semi Truck - Cummins 605HP, 18 Speed Manual

$106,900 USD

LOW MILES and HIGH HORSEPOWER! 605HP Cummins X15 Engine; 18 Speed Manual Transmission; Dual Exhaust Stacks; Gauge Package; Disc Brakes; 270in Wheelbase; 70in Single Bunk Sleeper; Collision...

Condition	Used
Usage	348,968 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.58 ratio
Stock Number	8680554
MLS Number	14451013
Category	Sleeper Semi Trucks
Last Updated	7/1/2026
Location	Bolingbrook, IL, US
Sold By	JX Truck Center

2020 Peterbilt 389 Sleeper Semi Truck - Cummins 605HP, 18 Speed Manual

$97,900 USD

BIG HORSEPOWER! 605hp on this 2020 Peterbilt 389 with a Cummins X15 Engine and an 18 Speed MANUAL Transmission! 70in Single Bunk Sleeper; Full Disc Brakes; Gauge Package; 270in Wheelbase;...

Condition	Used
Usage	483,481 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.58 ratio
Stock Number	8680552
MLS Number	14451011
Category	Sleeper Semi Trucks
Last Updated	7/1/2026
Location	Bolingbrook, IL, US
Sold By	JX Truck Center

2022 Peterbilt 579 Sleeper Semi Truck - Paccar 510HP, 13 Speed Manual

$67,900 USD

510HP! This 2022 Peterbilt 579 is Powered by an MX13 Engine with 510hp and a 13 Speed MANUAL Transmission. 58in Single Bunk Sleeper with Refrigerator; TV and Microwave Prep; Air Slide 5th...

Condition	Used
Usage	391,771 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Size	58"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	8680523
MLS Number	14451009
Category	Sleeper Semi Trucks
Last Updated	6/30/2026
Location	Bolingbrook, IL, US
Sold By	JX Truck Center

(833) 904-___ SHOW
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2007 Western Star 4900 Sleeper Semi Truck - Flat Top Sleeper, Mercedes-Benz 450HP, 10 Speed Amt

$17,500 USD

2007 Western Star 4900 Flattop Sleeper, 450hp Mercedes Benz OM460LA, 10spd Automated Transmission, 984k Mi, 2 Line wet kit, Air ride suspension, 230in Wheelbase, Nationwide Delivery...

Condition	Used
Usage	984,055 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	OM460LA
Drivetrain	6x4
Transmission	10 Speed Automated
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	1812
MLS Number	14450976
Category	Sleeper Semi Trucks
Last Updated	6/25/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC