18 Speed Flat Top Sleeper Semi Trucks For Sale

(833) 932-___ SHOW
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2025 Western Star 49X Sleeper Semi Truck - Detroit 600HP, 18 Speed Manual

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1384 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Spring Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 36, Tires: 11R24.5,...

Condition	New
Usage	1,384 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	600 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Spring
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	WS4852
MLS Number	13038859
Category	Sleeper Semi Trucks
Last Updated	1/14/2026
Location	Fort Kent, ME, US
Sold By	Freightliner of Maine

(844) 435-___ SHOW
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2019 Western Star 4900EX Tri Axle Sleeper Semi Truck - Detroit

$114,900 USD

378688 Miles, Engine: DETROIT DD16, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 8x4, Sleeper Type: Flat Top Sleeper, Sleeper Size: 54, Wheel Base: 272, Tri Rear Axles, Front Axle...

Condition	Used
Usage	378,688 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD16
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	54"
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	347449
MLS Number	13556811
Category	Sleeper Semi Trucks
Last Updated	1/6/2026
Location	Manchester, NH, US
Sold By	Allegiance Trucks

(855) 605-___ SHOW
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1994 Peterbilt 378 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 450HP, 18 Speed Manual

$57,500 USD

1994 Peterbilt 378, PRE-EMISSION, New Crate Motor Detroit 60 Series engine installed 170,000 miles ago w/paperwork, 450 HP, Reman 18 Speed Manual Transmission installed 170,000 miles ago...

Condition	Used
Usage	1,000,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit SERIES 60 12.7 DDEC III
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	52,500 lb 3.90 ratio
Stock Number	BTS3930
MLS Number	14049336
Category	Sleeper Semi Trucks
Last Updated	12/18/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(855) 489-___ SHOW
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2020 Kenworth W990 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

$169,000 USD

Price includes 6 month/50k Mile Premium 2000 Warranty (Engine, Turbo, Injectors, Aftertreatment), 565hp Cummins, 18 speed Manual Transmission, 20K Front Axle, 46K Rears, Full Lockers, 18.5K...

Condition	Used
Usage	201,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15P
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	66,000 lb 4.10 ratio
Stock Number	2083
MLS Number	13633782
Category	Sleeper Semi Trucks
Last Updated	12/11/2025
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

(844) 435-___ SHOW
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2024 Kenworth W900 Sleeper Semi Truck - 54" Flat Top Sleeper, Cummins 400HP, 18 Speed Manual

$199,900 USD

52023 Miles, Engine: CUMMINS, 605 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Sleeper Type: Flat Top Sleeper, Sleeper Size: 54, Wheel Base: 255, Tandem Rear Axles, Front...

Condition	Used
Usage	52,023 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	54"
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	330481
MLS Number	13481377
Category	Sleeper Semi Trucks
Last Updated	12/11/2025
Location	Manchester, NH, US
Sold By	Allegiance Trucks

(716) 218-___ SHOW
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2020 Peterbilt 389 Sleeper Semi Truck - 44" Flat Top Sleeper, Paccar 510HP, 18 Speed Manual

$69,900 USD

PACCAR MX 13 510HP,132000 FRONT AXLE,40000 REAR AXLE.3.58 RATIO,ALUM WHLS,FULL LOCKERS,18SPD TRANS,,

Condition	Used
Usage	435,846 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	44"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	213226
MLS Number	13711878
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Buffalo, NY, US
Sold By	Hunter Truck

(844) 656-___ SHOW
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2010 Freightliner Columbia 120 Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 500HP, 18 Speed Manual

$38,750 USD

FREIGHTLINER COLUMBIA 120 MID ROOF, 12.7 DETRIOT 500 HP, EATON FULLER 18 SPD, GOOD CLUTCH COLD A/C, FLEET MAINTAINED, SHORT BUNK, WET KIT 2 LINE DUMP VALVE, FULL OCKERS, GOOD TRUCK READY TO...

Condition	Used
Usage	1,105,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit SERIES 60 12.7 DDEC III
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Stock Number	#7661
MLS Number	12232762
Category	Sleeper Semi Trucks
Last Updated	11/8/2025
Location	Holland, MI, US
Sold By	HES Equipment / A&B Farms

(570) 638-___ SHOW
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2026 Peterbilt 589 Sleeper Semi Truck - Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

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BEAUTIFUL BRAND NEW 2026 PETERBILT 589 SLEEPER!!! PLEASE CALL HUNTER TRUCK SCRANTON SALES FOR MORE INFORMATION AND THE MOST COMPETITIVE PRICING!!! Cab Information, Color Dark Copper,...

Condition	New
Usage	9 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 Trac
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	283196
MLS Number	13809264
Category	Sleeper Semi Trucks
Last Updated	11/6/2025
Location	Scranton, PA, US
Sold By	Hunter Truck

(833) 637-___ SHOW
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2012 Western Star 4900 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 560HP, 18 Speed Manual

$59,900 USD

2012 Western Star 4900, only 24,700 miles, 7816 hrs, DD15 Detroit 560 hp, 18 speed, airliner susp, 20K pusher, 4.10 ratio, 245 wb, headache rack, set up for lowboy,,

Condition	Used
Usage	7,816 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	AirLiner
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
MLS Number	13791530
Category	Sleeper Semi Trucks
Last Updated	10/18/2025
Location	WINGER, MN, US
Sold By	Lucken Trucks and Parts

(844) 955-___ SHOW
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2012 Peterbilt 388 Sleeper Semi Truck - Flat Top Sleeper, Cummins 550HP, 18 Speed Manual

$79,750 USD

Only 313,000 Original Miles ~ Cummins ISX ~ 18 Speed ~ 550 HP ~ 14k Front / 46k Rears ~ Full Lockers ~ All Aluminum Wheels ~ Financing Available with Your Good Credit,

Condition	Used
Usage	313,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Cummins ISX
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
Stock Number	137904
MLS Number	13870754
Category	Sleeper Semi Trucks
Last Updated	10/23/2025
Location	Olive Branch, MS, US
Sold By	Truck Market

2025 Peterbilt 589 Sleeper Semi Truck - 58" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

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Engine: CUMMINS X15, 565 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Neway Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 58, Tires: 11R22.5, Wheels: Polished...

Quantity	2
Condition	New
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	58"
Suspension	Neway
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
Stock Number	276486
MLS Number	13273342
Category	Sleeper Semi Trucks
Last Updated	9/25/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(724) 704-___ SHOW
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2026 Peterbilt 589 Sleeper Semi Truck - 44" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

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On Ground in Eau Claire, PA. New 2026 Peterbilt 589 Sleeper, Cummins X15 Engine, 565 HP, 1850 Torque, 18 Speed Eaton Fuller Transmission, 250" Wheelbase, 150.1 CA, 12,500K Meritor Front Axle...

Condition	New
Usage	1 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	44"
Suspension	Pete Low Air Leaf
Rear End	40,000 lb 3.55 ratio
Stock Number	278875
MLS Number	13437334
Category	Sleeper Semi Trucks
Last Updated	9/17/2025
Location	Eau Claire, PA, US
Sold By	Hunter Truck

2025 Peterbilt 567 Sleeper Semi Truck - 44" Flat Top Sleeper, Paccar 510HP, 18 Speed Autoshift Amt

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PTO / Wet Line installed - 3 available,

Quantity	5
Condition	New
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	18 Speed Autoshift Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	44"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Stock Number	275516
MLS Number	13421358
Category	Sleeper Semi Trucks
Last Updated	9/17/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2025 Peterbilt 589 Sleeper Semi Truck - 58" Flat Top Sleeper, Cummins 565HP, 18 Speed Manual

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2 available,

Quantity	2
Condition	New
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	58"
Suspension	Neway
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
Stock Number	276485
MLS Number	13273367
Category	Sleeper Semi Trucks
Last Updated	9/17/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2025 Peterbilt 589 Sleeper Semi Truck - 72" Flat Top Sleeper, Cummins 605HP, 18 Speed Endurant Amt

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Engine: CUMMINS X15, 605 HP, Fuel Type: Diesel, 18 Speed Endurant AMT Transmission, Drive: 6x4, Low Air Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 72, Tires: 11R22.5, Wheels:...

Condition	New
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	273122
MLS Number	13089550
Category	Sleeper Semi Trucks
Last Updated	9/17/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(724) 704-___ SHOW
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2026 Peterbilt 589 Sleeper Semi Truck - 72" Flat Top Sleeper, Cummins 605HP, 18 Speed Manual

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New 2026 Peterbilt 589, Flat Top, 72" Sleeper, Retro Custom Paint, Cummins X15 Engine, 605 HP, 1850 Torque, 18 Speed Eaton Fuller Transmission, 280" Wheelbase, 180.1 CA, 13,200 Dana Spicer...

Condition	New
Usage	40 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Pete Low Air Leaf
Rear End	40,000 lb 3.42 ratio
Stock Number	280708
MLS Number	13736473
Category	Sleeper Semi Trucks
Last Updated	9/24/2025
Location	Eau Claire, PA, US
Sold By	Hunter Truck

(855) 605-___ SHOW
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2020 Kenworth W900 Sleeper Semi Truck - Flat Top Sleeper, Cummins 605HP, 18 Speed Manual

$108,500 USD

WE WILL ENTERTAIN ANY REASONABLE OFFER! 2020 Kenworth W900. Factory 605hp Cummins X15 and 18 spd trans. 4 way lockers, 2 sets of stacks, Recent work includes new turbo and Transmission...

Condition	Used
Usage	425,883 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 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	CON7743
MLS Number	13593327
Category	Sleeper Semi Trucks
Last Updated	9/13/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(833) 637-___ SHOW
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2012 Western Star 4900 Tri Axle Sleeper Semi Truck - 28" Flat Top Sleeper, Detroit 505HP, 18 Speed Manual

$49,900 USD

2012 Western Star 4900SA, 246,500 miles, DD15-505 hp, Eaton RTLO18918B 18 speed, 4.30 ratio, 244 wb, 14,320 front, 46,000 rears, 12,000 pusher, 180 Gal Fuel cap, Nice heavy truck in great...

Condition	Used
Usage	246,245 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	28"
Suspension	AirLiner
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
MLS Number	13542225
Category	Sleeper Semi Trucks
Last Updated	6/25/2025
Location	WINGER, MN, US
Sold By	Lucken Trucks and Parts

(833) 300-___ SHOW
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2022 Peterbilt 367 Sleeper Semi Truck - 36" Flat Top Sleeper, Paccar 510HP, 18 Speed Ultrashift Amt

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Transmission model: FO18E318B-MXP ULTRASHIFT,

Condition	Used
Usage	8,256 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	18 Speed Ultrashift Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	C-35965
MLS Number	13374588
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(707) 849-___ SHOW
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2012 Peterbilt 388 Sleeper Semi Truck - Flat Top Sleeper, Cummins 500HP, 18 Speed Manual

$165,000 USD

2012 Peterbilt 388 Flat Top Sleeper California CARB Compliant Heavy Spec'd - 14320lb FA and 46k RA Cummins ISX15 Engine, 500HP, 199k Miles, 18 Speed, Wet Kit, Lowboy Ramps Excellent shape,...

Condition	Used
Usage	8,684 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins ISX15 500
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Trac
Rear Axle	Tandem Axle
Rear End	46,000 lb
MLS Number	12750407
Category	Sleeper Semi Trucks
Last Updated	9/28/2025
Location	Santa Rosa, CA, US
Sold By	Personal Asset Brokerage

(833) 300-___ SHOW
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2023 Peterbilt 389 Sleeper Semi Truck - 64" Flat Top Sleeper, Cummins 500HP, 18 Speed Manual

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68746 Miles, Engine: CUMMINS X15, 500 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 64, Wheels: All...

Condition	Used
Usage	68,746 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	64"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	C-35742
MLS Number	13173941
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(844) 883-___ SHOW
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2016 Peterbilt 579 Tandem Highway Tractor with 72 Inch Sleeper

$56,000 USD

Stock #:5028 , Exterior Colour:White , Engine:Cummins ISX , Horsepower:500 , Transmission:18 Spd Auto , Front Axle:13,200 , Rear ...

Condition	Used
Usage	450,000 Miles
Horse Power	500 HP
Engine Model	Cummins ISX
Transmission	18 Speed Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.73 ratio
Stock Number	5028
MLS Number	10797521
Category	Sleeper Semi Trucks
Last Updated	11/20/2025
Location	Blaine, WA, US
Sold By	International Machinery

(833) 538-___ SHOW
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2019 Peterbilt 389 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Paccar 510HP, 18 Speed Manual

$70,000 USD

700000 Miles, Engine: PACCAR MX-13, 510 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 8x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheels: Aluminum, Tri Rear Axles

Condition	Used
Usage	700,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Stock Number	610741
MLS Number	14094779
Category	Sleeper Semi Trucks
Last Updated	1/17/2026
Location	Idaho Falls, ID, US
Sold By	Dad's Truck and Trailer Sales