Used 6x4 Flat Top Sleeper Semi Trucks For Sale

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2020 Peterbilt 389 Sleeper Semi Truck - Flat Top Sleeper, Cummins 565HP, 13 Speed Manual

$115,000 USD

2020 Peterbilt 389 Flat Top Sleeper Well Maintained, ready for work 440k Miles, Cummins X15 Engine, 565HP, 13 Speed, Locker, 52350lb GVW,

Condition	Used
Usage	440,289 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	13773412
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(844) 956-___ SHOW
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2022 Peterbilt 389 Sleeper Semi Truck - 63" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

Recently Updated

$149,900 USD

X15 565HP, Eaton Fuller RTLO18918B 18 Speed Transmission, Air Ride Front Axle, Dana Spicer DSP40 Rear Axles 3.42 Ratio, 63" Flat Top Sleeper w/ Platinum Interior Leather Seats, 20" Boxed End...

Condition	Used
Usage	605,097 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	63"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	C5371
MLS Number	14052313
Category	Sleeper Semi Trucks
Last Updated	1/23/2026
Location	West Sacramento, CA, US
Sold By	DeWald Equipment

(866) 530-___ SHOW
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2008 Peterbilt 367 Sleeper Semi Truck - 36" Flat Top Sleeper, Cummins 500HP, 18 Speed Manual

Recently Updated

$49,850 USD

3W EQUIPMENT INVENTORY CHANGING DAILY - CALL AHEAD!! TRUCK QUALIFIES FOR A 12 MONTH - UNLIMITED MILES POWERTRAIN WARRANTY!!! LOW RATE FINANCING FOR BUSINESS AND INDIVIDUALS! JUST IN!!!...

Condition	Used
Usage	326,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins ISX15 485
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	JK2008
MLS Number	13798639
Category	Sleeper Semi Trucks
Last Updated	1/22/2026
Location	HOT SPRINGS, AR, US
Sold By	3W Equipment

(833) 801-___ SHOW
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2013 Peterbilt 388 Sleeper Semi Truck - Flat Top Sleeper, Paccar 490HP, 13 Speed Manual

Recently Updated

$45,000 USD

GOOD TRUCK, RUNS GREAT, FULL GAUGE PACKAGE, FULL LOCKING REARS, DUAL EXHAUST, DUAL BREATHERS, DUAL AIR RIDE SEATS, TILT/TELE, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS,,

Condition	Used
Usage	589,133 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	490 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	13MX589FLAT388
MLS Number	13755641
Category	Sleeper Semi Trucks
Last Updated	1/22/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(609) 318-___ SHOW
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2020 Kenworth T880 Sleeper Semi Truck - 40" Flat Top Sleeper, Paccar 455HP, 12 Speed Amt

Recently Updated

$52,900 USD

READY FOR WORK!,

Condition	Used
Usage	354,836 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	40"
Suspension	8 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	285286
MLS Number	14081928
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(855) 605-___ SHOW
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2013 Freightliner Cascadia 125 Sleeper Semi Truck - Flat Top Sleeper, Detroit 475HP, 10 Speed Manual

Recently Updated

$8,500 USD

Truck came in on trade. Has a cylinder leaking coolant into engine. Can be bought as is until we have time to fix it

Condition	Used
Usage	520,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	BTS5766
MLS Number	13760569
Category	Sleeper Semi Trucks
Last Updated	1/20/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(866) 530-___ SHOW
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2020 Kenworth W900 Sleeper Semi Truck - Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

Price Drop $119,995 USD

2020 KENWORTH W900, Cummins X15 565 hp, 18 Speed Transmission, 3.55 Ratio, Air ride suspensions, 270" Wheelbase FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	497,147 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	0724
MLS Number	13436827
Category	Sleeper Semi Trucks
Last Updated	1/20/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 956-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - 40" Flat Top Sleeper, Paccar 455HP, 12 Speed Endurant Amt

Newly Listed

Contact for price

Paccar MX-13 6 Cylinder 12.9 L Ultra Low Sulfur Diesel 455 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, Engine Coolant Heater, 100 gal Left Fuel Tank 100 gal Right Fuel Tank,...

Condition	Used
Usage	480,424 Miles
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	Flat Top Sleeper
Sleeper Size	40"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	C5370
MLS Number	14097582
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	West Sacramento, CA, US
Sold By	DeWald Equipment

(707) 849-___ SHOW
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2022 Peterbilt 567 Sleeper Semi Truck - Flat Top Sleeper, Paccar 455HP, 10 Speed Ultrashift Automatic

Newly Listed

$85,500 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	1/17/2026
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(833) 904-___ SHOW
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2013 Western Star 4900 Sleeper Semi Truck - 42" Flat Top Sleeper, Detroit 450HP, 10 Speed Manual

$34,500 USD

2013 Western Star 4900SB Sleeper, 450hp Detroit DD13, 10spd Manual, Air ride suspension, 319k Mi, Nationwide Delivery Available

Condition	Used
Usage	318,897 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	42"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.73 ratio
Stock Number	4847
MLS Number	14094822
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(609) 318-___ SHOW
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2023 Peterbilt 567 Sleeper Semi Truck

$119,900 USD

Balance of FACTORY WARRANTY / Financing Available Balance of 5yr/400,000 mile Engine, Aftertreatment, Base Vehicle transfers to new owner!!! 2023 PETERBILT 567 58" SLEEPER, PLEASE CALL...

Condition	Used
Usage	280,097 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	58"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	259222
MLS Number	13568455
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(833) 904-___ SHOW
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2015 Peterbilt 579 Sleeper Semi Truck - Flat Top Sleeper, Paccar 450HP, 13 Speed Amt

$59,500 USD

2015 Peterbilt 579 Sleeper Truck, 450hp Paccar MX-13, 13spd Automated Transmission, 186k Mi, Air Ride Suspension, 222in Wheelbase, Nationwide Delivery Available

Condition	Used
Usage	186,658 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	13 Speed Automated
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	9910
MLS Number	14088418
Category	Sleeper Semi Trucks
Last Updated	1/14/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(724) 648-___ SHOW
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2021 Peterbilt 579 Sleeper Semi Truck - 44" Flat Top Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$54,900 USD

Low mileage, small flat top 579 with Cummins. Has small sleeper when needed. Lease maintaned. Ready to go,

Condition	Used
Usage	10,367 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	44"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.93 ratio
Stock Number	231290
MLS Number	14088032
Category	Sleeper Semi Trucks
Last Updated	1/17/2026
Location	Butler, PA, US
Sold By	Hunter Truck

(855) 981-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - Flat Top Sleeper, Paccar 405HP, Automatic

Price Drop $34,990 USD

2020 Kenworth T680 Specs:, -Drive: 6x4, -Mileage: 557,742, -Engine: Paccar MX-13, -HP:405, -Color: Blue, -Wheels: Aluminum, -Tires: 22.5LP, THE NATIONWIDE HAUL EDGE - We finance All...

Condition	Used
Usage	557,742 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	405 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC36781MAC Web
MLS Number	14007862
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Macon, GA, US
Sold By	Nationwide Haul

(855) 981-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - Flat Top Sleeper, Paccar 405HP, Automatic

Price Drop $34,990 USD

2020 Kenworth T680 Specs:, -Drive: 6x4, -Mileage: 557,742, -Engine: Paccar MX-13, -HP:405, -Color: Blue, -Wheels: Aluminum, -Tires: 22.5LP, THE NATIONWIDE HAUL EDGE - We finance All...

Condition	Used
Usage	557,742 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	405 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	Automatic
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC36781MAC
MLS Number	14007858
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Macon, GA, US
Sold By	Nationwide Haul

(833) 300-___ SHOW
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2021 Kenworth T880 Sleeper Semi Truck - 30" Flat Top Sleeper, Cummins 500HP, 18 Speed Manual

Contact for price

WEBASTO, DISC BRAKE,

Condition	Used
Usage	11,798 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15E
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	30"
Suspension	8 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	C-37305
MLS Number	14081926
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(855) 807-___ SHOW
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2016 Peterbilt 389 Sleeper Semi Truck - 48" Flat Top Sleeper, Cummins 485HP, 10 Speed Manual

$64,500 USD

PETERBILT 389 FLATTOP, 176K ON OVERHAUL WITH PAPERWORK, CUMMINS ISX15, 485HP, 10 SPEED MANUAL TRANSMISSION, 48" SLEEPER, DUAL STACKS AND BREATHERS, JAKES, LOCKERS, 270 GAL FUEL TANKS,...

Condition	Used
Usage	819,040 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	48"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	7132
MLS Number	13916588
Category	Sleeper Semi Trucks
Last Updated	1/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(833) 300-___ SHOW
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2021 Kenworth T880 Sleeper Semi Truck - 28" Flat Top Sleeper, Cummins 500HP, 18 Speed Manual

Contact for price

WEBASTO, DISC BRAKE,

Condition	Used
Usage	9,968 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15E
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	28"
Suspension	8 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	C-37304
MLS Number	14078224
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(833) 300-___ SHOW
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2022 Western Star 4900FA Sleeper Semi Truck - 42" Flat Top Sleeper, Detroit 560HP, 18 Speed Manual

Contact for price

Transmission modelRTLO-20918B, ALUMINIUM HEADACHE RACK, ESPAR, BEACONS LIGHT, WET KIT,

Condition	Used
Usage	8,477 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	42"
Suspension	Hendrickson PRIMAAX
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	C-37148
MLS Number	14077726
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(855) 605-___ SHOW
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2005 Peterbilt 379EXHD Sleeper Semi Truck - 63" Flat Top Sleeper, Caterpillar 550HP, 18 Speed Manual

$95,000 USD

Beautiful 2005 379 Long hood Pete. Flat top sleeper, full fenders, all aluminum wheels. C15 Cat with Platinum 650hp engine kit installed less than 5000 miles ago. New head, new 650hp...

Condition	Used
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Caterpillar C15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	63"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.70 ratio
Stock Number	CON8127
MLS Number	14065811
Category	Sleeper Semi Trucks
Last Updated	1/8/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(707) 849-___ SHOW
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2013 Peterbilt 388 Sleeper Semi Truck - Flat Top Sleeper, Cummins 500HP, 10 Speed Manual

$58,000 USD

2013 Peterbilt 388 Flat Top Sleeper 350k Miles on Full Inframe with Paperwork 1 mil miles on chassis, Eaton Fuller 10 Speed, Cummins ISX15 Engine, 500HP Well cared for truck, California CARB...

Condition	Used
Usage	1,050,809 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins ISX15 500V
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	13743870
Category	Sleeper Semi Trucks
Last Updated	1/7/2026
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(484) 544-___ SHOW
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2021 Peterbilt 579 Sleeper Semi Truck - Flat Top Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$55,900 USD

Cummins Powered Low Roof short bunk. Perfect for Regional Work with overnight runs

Condition	Used
Usage	13,115 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Emission Rating	USA Tier 4
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.93 ratio
Stock Number	229299
MLS Number	13910419
Category	Sleeper Semi Trucks
Last Updated	1/6/2026
Location	Allentown, PA, US
Sold By	Hunter Truck

(844) 481-___ SHOW
NUMBERCall Seller

2019 Peterbilt 389 Sleeper Semi Truck - Flat Top Sleeper, Paccar 485HP, 13 Speed Manual

$78,500 USD

2019 PETERBILT 389 FLATTOP, SOLID WHITE, PACCAR MX-13 485 HP, DUAL STACK, DUAL BREATHER, 40K REARS, 13PD MANUAL TRANSMISSION, AIR RIDE SUSPENSION, 11R24.5, ALUMINUM WHEELS, SLIDING FIFTH...

Condition	Used
Usage	636,538 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	14025410
Category	Sleeper Semi Trucks
Last Updated	12/30/2025
Location	Jackson, TN, US
Sold By	Snider Equipment

(833) 801-___ SHOW
NUMBERCall Seller

2015 Kenworth T660 Sleeper Semi Truck - 72" Flat Top Sleeper, Paccar 485HP, 13 Speed Manual

$20,000 USD

SUPER NICE TRUCK, RUNS AND DRIVES EXCELLENT, VIT INTERIOR. DUAL AIR RIDE SEATS, POWER WINDOWS, TILT/TELE, DUMP VALVE, DIFFERENTIAL LOCK, SLIDING 5TH WHEEL! *DELETED EMISSIONS,

Condition	Used
Usage	1,130,308 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	485 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	13 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.36 ratio
Stock Number	15MX113FLATT6
MLS Number	13822795
Category	Sleeper Semi Trucks
Last Updated	12/30/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales