18 Speed Tri Axle Trucks For Sale

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2026 Peterbilt 589 Tri Axle Dump Truck - Cummins 605HP, 18 Speed Mdrive Hd Manual, 18' Dump

Recently Updated

$286,000 USD

NEW 2026 PETERBILT 589 DUMP TRUCK! 18' STEEL DUMP BODY, POWERED WITH CUMMINS X15 ENGINE, AND EATON FULLER 18SPD MANUAL TRANSMISSION. 20K FRONT AXLE, 20K PUSHER AXLE, 46K REAR AXLE, 260"...

Condition	New
Usage	1,646 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	SUPER CITY
Bed Length	18 ft.
Horse Power	605 HP
Engine Model	Cummins X15
Transmission	18 Speed mDRIVE HD Manual
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	282953
MLS Number	13862918
Category	Dump Trucks
Last Updated	1/17/2026
Location	Butler, PA, US
Sold By	Hunter Truck

(833) 904-___ SHOW
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2015 Western Star 4900 Tri Axle Day Cab Truck - Cummins 550HP, 18 Speed Manual

Newly Listed

$69,500 USD

2015 Western Star W4900SB Day cab, 550hp Cummins ISX15, 18spd Manual, 248k MI, 285" Wheelbase, Air ride suspension, Nationwide Delivery Available

Condition	Used
Usage	248,614 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	550 HP
Engine Model	Cummins ISX15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	1051
MLS Number	14094792
Category	Day Cab Semi Trucks
Last Updated	1/16/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(833) 904-___ SHOW
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2016 Western Star 4900 Tri Axle Sleeper Semi Truck - 42" Flat Top Sleeper, Detroit 561HP, 18 Speed Manual

Newly Listed

$77,500 USD

2016 Western Star 4900, Reman Detroit DD16 in May 2024, 18 speed with 2 speed rears, Full double frame, Full locking rears, 20k front with dual boxes, 20k pusher, 46k rears, Nationwide...

Condition	Used
Usage	537,788 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	561 HP
Engine Model	Detroit DD16
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	42"
Suspension	Neway
Rear Axle	Tri Axle
Rear End	66,000 lb 4.10 ratio
Stock Number	8326
MLS Number	14094788
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(855) 807-___ SHOW
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2021 Peterbilt 567 Tri Axle Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

Newly Listed

$114,500 USD

FLEET MAINTAINED, 2021 PETERBILT 567 HEAVY HAUL, CUMMINS X15, 500HP,18 SPEED TRANSMISSION, 3.9/5.31 RATIO, DOUBLE FRAMED, FULL FENDERS, SLIDIDNG FIFTH WHEEL, ALUMINUM RIMS, 245 GAL FUEL TANK...

Condition	Used
Usage	359,400 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	66,000 lb
Stock Number	7180
MLS Number	14094513
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(855) 807-___ SHOW
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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 80" Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

Recently Updated

$109,500 USD

2020 PETERBILT 567 HEAVY HAUL, 500 HP CUMMINS-X15 POWER, MIDROOF 80" SLEEPER, NO PASSENGER SEAT, DOUBLE FRAMED, GREAT LOW MILES, 18SPD MAN-TRANS, APU TRI PAK, FULL LOCKERS, 20,000 PUSHER...

Condition	Used
Usage	343,901 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	65,400 lb
Stock Number	7170
MLS Number	14056579
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(855) 489-___ SHOW
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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 605HP, 18 Speed Manual

Recently Updated

$122,000 USD

605hp Cummins w/2050 ft lb Torque, Modified Emissions, 18 Speed Manual Transmission, Limited Edition "Heritage" Interior with 76" Mid Roof Sleeper, 20K Front Axle, 46K Rears, Full Lockers,...

Condition	Used
Usage	25,260 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15P
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	66,000 lb
Stock Number	2168
MLS Number	14016276
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

(724) 648-___ SHOW
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2014 Peterbilt 389K Tri Axle Dump Truck - Caterpillar 605HP, 18 Speed Manual, 19' Dump

Recently Updated

$142,900 USD

Very well maintained. Not ran in winter. Truck needs nothing, ready to work. Heated body - Set up for asphalt with rear door,

Condition	Used
Usage	19,295 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	19 ft.
Horse Power	605 HP
Engine Model	Caterpillar C15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	239048
MLS Number	14069768
Category	Dump Trucks
Last Updated	1/15/2026
Location	Butler, PA, US
Sold By	Hunter Truck

(833) 478-___ SHOW
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2021 Western Star 4900 Sleeper Semi Truck

Recently Updated

$120,495 USD

2021 Western Star 4900 – Heavy Haul Powerhouse - DD16 600HP w/ EW4 Warranty Stock #14661 Hard-to-findWestern Star 4900 Heavy Haulpowered by aDetroit DD16 putting out 600HPand backed by...

Warranty

Condition	Used
Usage	398,479 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	600 HP
Engine Model	Detroit DD16
Drivetrain	8x4
Transmission	18 Speed Autoshift Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 4.56 ratio
Stock Number	14661
MLS Number	13527022
Category	Sleeper Semi Trucks
Last Updated	1/18/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(855) 605-___ SHOW
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2011 Western Star 4900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Detroit 500HP, 18 Speed Manual

Newly Listed

$59,500 USD

2011 Western Star 4900SA, 500 hp Detroit DD15, 18 spd Overdrive transmission with 4.30 gears in 46k rear ends with full lockers. 16K front axle and #13,200 steerable lift. 2 Line wet kit

Condition	Used
Usage	10,656 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	59,200 lb
Stock Number	BTS8704
MLS Number	14088452
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(716) 218-___ SHOW
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2024 Peterbilt 389 Tri Axle Sleeper Semi Truck - 72" Flat Top Sleeper, Cummins 605HP, 18 Speed Endurant Amt

Recently Updated

$219,900 USD

605 HP CUMMINS,18-SPD AUTOMATED TRANS,20000 FRT,52000RR,20000 PUSHER.4.10 RATIO,72::FLATTOP,189000 MILES NEWAY SUSP,

Condition	Used
Usage	189,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Neway
Rear Axle	Tri Axle
Rear End	40,000 lb 4.10 ratio
Stock Number	263280
MLS Number	14070056
Category	Sleeper Semi Trucks
Last Updated	1/14/2026
Location	Buffalo, NY, US
Sold By	Hunter Truck

(844) 624-___ SHOW
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2022 Peterbilt 567 Tri Axle Sleeper Semi Truck - 80" Mid Roof Sleeper, Cummins 565HP, 18 Speed Automatic

Recently Updated

$137,950 USD

For Sale: 2022 Peterbilt 567 Tri-Axle Sleeper – BIG HP, LOW MILES!, ONLY 291k MILES! Equipped with a 565hp Cummins X15, Eaton 18-Speed Automatic Transmission, 80” Mid Roof Sleeper, 48” Air...

Condition	Used
Usage	285,652 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x6
Transmission	18 Speed Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	57,999 lb 3.91 ratio
Stock Number	CO10655
MLS Number	14045803
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(855) 981-___ SHOW
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2014 Kenworth W900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Cummins 550HP, 18 Speed Manual

Price Drop $59,990 USD

2014 Kenworth W900 Specs:, -Mileage: 870,396, -Drive: 8x4, -HP: 550, -Engine: Cummins x15, Transmission: Eaton Manual 18 Speed, -Suspension: Air-ride, -Wheels: All Aluminum, -Tires: 11R24.5...

Condition	Used
Usage	870,396 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	23,000 lb
Stock Number	TNHC35498LAK Web
MLS Number	13652106
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

(855) 981-___ SHOW
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2014 Kenworth W900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Cummins 550HP, 18 Speed Manual

Price Drop $59,990 USD

2014 Kenworth W900 Specs:, -Mileage: 870,396, -Drive: 8x4, -HP: 550, -Engine: Cummins x15, Transmission: Eaton Manual 18 Speed, -Suspension: Air-ride, -Wheels: All Aluminum, -Tires: 11R24.5...

Condition	Used
Usage	870,396 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	23,000 lb
Stock Number	TNHC35498LAK
MLS Number	13652104
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

(954) 523-___ SHOW
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2026 Kenworth T880 Tri Axle Day Cab Truck - Cummins 565HP, 18 Speed Manual

$194,095 USD

Transfer this unit to your nearest South Florida location at no additional cost! Fort Lauderdale, Fort Pierce, Riviera Beach, or Naples. Contact us for details! Model Year: 2026, Model: T880...

Condition	New
Usage	3,486 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	AG 460
Rear Axle	Tri Axle
Rear End	68,500 lb 4.30 ratio
Stock Number	KF210925
MLS Number	13721038
Category	Day Cab Semi Trucks
Last Updated	1/11/2026
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

(844) 305-___ SHOW
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2025 Peterbilt 589 Tri Axle Dump Truck - Paccar 510HP, 18 Speed Manual, 17' Dump

$229,900 USD

Tri Axle, MX13 PACCAR 510 HP, Eaton-Fuller Manual 18 Speed, 20,000 Front Axle, 46,000 Rear Axle, 241" Wheelbase, 22' 3" Bridge, Air Trac, Double Frame, 3 Stage Engine Brake, Air Brake, Full...

Condition	Used
Usage	24,337 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Bibeau
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Transmission	18 Speed Manual
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	4.10 ratio
Stock Number	SD742614
MLS Number	14082767
Category	Dump Trucks
Last Updated	1/10/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

(724) 648-___ SHOW
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2018 Kenworth T880 Tri Axle Dump Truck - Cummins 565HP, 18 Speed Manual, 19' Dump

$142,900 USD

0 miles on fresh overhaul. New DPF, 19' MAC steel dump, 2 way gate, Pintle with air electric, Electric tarp,

Condition	Used
Usage	11,002 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	MAC Trailer
Bed Length	19 ft.
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Suspension	Hendrickson HMX460
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	284651
MLS Number	14082727
Category	Dump Trucks
Last Updated	1/10/2026
Location	Butler, PA, US
Sold By	Hunter Truck

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2025 Peterbilt 589 Tri Axle Dump Truck - Paccar 510HP, 18 Speed Manual, 17' Dump

$229,900 USD

2025 Peterbilt 589 --- Tri Axle, MX13 PACCAR 510 HP, Eaton-Fuller Manual 18 Speed, 20,000 Front Axle, 46,000 Rear Axle, 241" Wheelbase, 22' 3" Bridge, Air Ride Air Trac, Double Frame, 3...

Condition	Used
Usage	24,337 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Bibeau
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	742614
MLS Number	14082567
Category	Dump Trucks
Last Updated	1/10/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(410) 465-___ SHOW
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2026 Kenworth W990 Tri Axle Wrecker Tow Truck - Cummins, 605HP, 18 Speed Manual

Contact for price

Century 1075 (75ton) Rotator, Raptor Controls, 5 Winches, Dual H Beam w/stage LFO-HHU Coach Low Rider Wheel Lift, LOADED…,

Condition	New
Usage	1 Miles
Duty Class	Heavy Duty Wrecker Tow Truck
Horse Power	605 HP
Engine Model	Cummins X15
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Stock Number	C1786-W0782
MLS Number	13989626
Category	Wrecker Tow Trucks
Last Updated	1/10/2026
Location	Ellicott City, MD, US
Sold By	All Roads Trucks

(410) 465-___ SHOW
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2026 Kenworth W990 Tri Axle Wrecker Tow Truck - Cummins, 605HP, 18 Speed Freedom Line Manual

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Century 1150 (50ton) Rotator, 5 Winch, Knee Boom-Coach Wheel Lift, Raptor Controls,” LOADED”,

Condition	New
Usage	1 Miles
Duty Class	Heavy Duty Wrecker Tow Truck
Horse Power	605 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Freedom Line Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Stock Number	C1787-W0783
MLS Number	13982208
Category	Wrecker Tow Trucks
Last Updated	1/10/2026
Location	Ellicott City, MD, US
Sold By	All Roads Trucks

(570) 638-___ SHOW
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2026 Peterbilt 589 Tri Axle Day Cab Truck - Cummins 565HP, 18 Speed Manual

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JUST ARRIVED!!! BRAND NEW PETERBILT 589 HEAVY HAUL SPEC!!! POLISHED TOOLBOX, POLISHED FENDERS, WETLINE, DROP VISOR, AIR CLEANER LIGHTS AND STROBE BAR!!! READY TO WORK!!! PLEASE CALL HUNTER...

Condition	New
Usage	1,636 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	565 HP
Engine Model	Cummins X15
Transmission	18 Speed Manual
Suspension	Neway
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	282758
MLS Number	13803765
Category	Day Cab Semi Trucks
Last Updated	1/10/2026
Location	Scranton, PA, US
Sold By	Hunter Truck

(844) 611-___ SHOW
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2019 Kenworth W900L Tri Axle Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 625HP, 18 Speed Manual

$156,900 USD

low miles hours sleeper truck w/ long w/b and full rear locking axles. New 20250 torque 18 spd. transmission clutch installed w/ 67k miles, Espar bunk heater, fuel filter heater, Magnum...

Condition	Used
Usage	6,470 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	625 HP
Engine Model	Cummins X15
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	53,000 lb
MLS Number	14080398
Category	Sleeper Semi Trucks
Last Updated	1/9/2026
Location	Rigby, ID, US
Sold By	Grover's All-Wheels, LLC

(833) 637-___ SHOW
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2012 Western Star 4900 Tri Axle Roll Off Truck - Detroit, 500HP, 18 Speed Manual

$95,000 USD

2012 Western Star 4900 roll off truck, only 58K miles, 50,000lb hyd. hook, DD15 Detroit, 500 hp, Eaton 18 speed manual, 16K front, 46K drivers, 12K steerable pusher, polished aluminum rims,...

Condition	Used
Usage	5,813 Hours
Duty Class	Heavy Duty Roll Off Truck
Horse Power	500 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	AirLiner
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
MLS Number	14080384
Category	Roll Off Trucks
Last Updated	1/10/2026
Location	WINGER, MN, US
Sold By	Lucken Trucks and Parts

(833) 478-___ SHOW
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2008 Kenworth T800 Tri Axle Day Cab Truck - Cummins 600HP, 18 Speed Manual

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Stock 7086 — 2008 Kenworth T800 Tri-Axle, 600HP Cummins , 18-Speed , 6x6 , New Motor, Heavy-spec Kenworth T800 powered by a Cummins ISX 600 HP with a new engine installed and only 41,300...

Condition	Used
Usage	515 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	600 HP
Engine Model	Cummins ISX600
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Neway
Rear Axle	Tri Axle
Rear End	66,000 lb 4.30 ratio
Stock Number	7086
MLS Number	14049430
Category	Day Cab Semi Trucks
Last Updated	1/15/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(855) 807-___ SHOW
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2020 Peterbilt 567 Tri Axle Day Cab Truck - Cummins 565HP, 18 Speed Manual

$139,500 USD

2020 PETERBILT 567 HEAVY HAUL, 565 HP CUMMINS-X15 POWER, DOUBLE FRAMED, 18SPD MAN-TRANS, FULL LOCKERS, 23,000 PUSHER AXLE ,46K REARS, DUAL EXHAUST, AIR TRAC SUSPENSION, LONG TRACK AIR SLIDE...

Condition	Used
Usage	239,152 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	69,000 lb 4.10 ratio
Stock Number	7161
MLS Number	14054009
Category	Day Cab Semi Trucks
Last Updated	1/8/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd