Used 18 Speed 8x4 Trucks with Air Ride Suspension For Sale

1 - 21 of 21 listings

2015 Peterbilt 389 Tri Axle Sleeper Semi Truck - Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

2007 Peterbilt 379 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Caterpillar 550HP, 18 Speed Manual

Newly Listed

$84,900 USD

550 hp Cat with 500,000 on overhaul, 18 speed manual, steerable pusher axle, 11R22.5 tires on aluminum wheels, New pusher tires, New drive tires, air slide 5th wheel, drive axle fenders,...

Condition	Used
Usage	1,113,152 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Stock Number	4022
MLS Number	14153717
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	New Salem, ND, US
Sold By	Pedigree Truck and Trailer Sales, Inc.

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2009 Peterbilt 389 Tri Axle Sleeper Semi Truck - Mid Roof Sleeper, Caterpillar 475HP, 18 Speed Manual

Newly Listed

$49,900 USD

550 Cat, 18 speed, air ride suspension, pusher axle, air slide 5th wheel, moose pusher, aluminum wheels, LoPro 24.5 tires, 1/2 fenders,

Condition	Used
Usage	1,456,053 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Stock Number	4936
MLS Number	14153536
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	New Salem, ND, US
Sold By	Pedigree Truck and Trailer Sales, Inc.

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2015 Western Star 4900 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 505HP, 18 Speed Ultrashift Plus Amt

Newly Listed

$35,000 USD

HEAVY DUTY TRUCK! RUNS EXCELLENT! STEERABLE AIR LIFT AXLE, THICK FRAME, FULL LOCKING REARS, AIR SEAT, POWER WINDOWS, DUAL EXHAUST, PTO! *18 SPEED AUTOMATIC TRANSMISSION!!,

Condition	Used
Usage	347,874 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15TC
Drivetrain	8x4
Transmission	18 Speed Ultrashift Plus Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	15DET347TRIWS
MLS Number	14147507
Category	Sleeper Semi Trucks
Last Updated	2/17/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 801-___ SHOW
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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 80" Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

$109,500 USD

2020 PETERBILT 567 HEAVY HAUL, 500 HP CUMMINS-X15 POWER, MIDROOF 80" SLEEPER, DOUBLE FRAMED, GREAT LOW MILES, 18SPD MAN-TRANS, APU TRI PAK, FULL LOCKERS, 20,000 PUSHER AXLE. 45,400 REARS, 20...

Condition	Used
Usage	339,992 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	7179
MLS Number	14137215
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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2014 Kenworth W900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Cummins 600HP, 18 Speed Manual

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COMING IN LATER THIS MONTH, 2014 KENWORTH W900 WITH CUMMINS ISX15 600HP (DELETED) AND 18 SPEED TRANS 35,000 MILES ON A PLATINUM REBUILD. 389,255 ON THE ODOMETER. TRIAXLE TRAIN HORN ALL LED...

Condition	Used
Usage	389,255 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	600 HP
Engine Model	Cummins ISX15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	23,000 lb 3.73 ratio
Stock Number	386681
MLS Number	14127399
Category	Sleeper Semi Trucks
Last Updated	2/5/2026
Location	Beverly, WV, US
Sold By	TFS Recovery, Inc.

(844) 748-___ SHOW
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2019 Peterbilt 567 Tri Axle Sleeper Semi Truck - Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

$98,500 USD

2019 Peterbilt 567, 500hp Cummins X15, 18spd Manual Transmission, 225k Mi, Air ride suspension, Lift Axle, Wet Kit, 274in Wheelbase, nationwide Delivery Available

Condition	Used
Usage	225,583 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
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	58,350 lb
Stock Number	1309
MLS Number	14124665
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(833) 904-___ SHOW
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2017 Kenworth T880 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Paccar 500HP, 18 Speed Manual

$49,900 USD

Paccar MX13 500 HP, 18 speed RTLO18918B Transmission, 3.55 rear ratio, full locking rears, air slide 5th wheel, steerable pusher axle, 11R22.5 tires on aluminum wheels, dual exhaust,...

Condition	Used
Usage	874,908 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	3.55 ratio
Stock Number	5554
MLS Number	14099909
Category	Sleeper Semi Trucks
Last Updated	2/3/2026
Location	New Salem, ND, US
Sold By	Pedigree Truck and Trailer Sales, Inc.

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2008 Peterbilt 388 Tri Axle Day Cab Truck - Cummins 500HP, 18 Speed Manual

$74,500 USD

2008 Peterbilt 388 Day cab, 500hp Cummins ISX15, 18spd Manual, Full Lockers, Lift Axle, 304k Mi, Air Trac susp., High Pressure Pump -FMC Q1614HP Bean Pump - 5000 psi, 88.5 gpm,. Nationwide...

Condition	Used
Usage	304,039 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins ISX15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	0736
MLS Number	14118157
Category	Day Cab Semi Trucks
Last Updated	1/30/2026
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

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2021 Peterbilt 567 Tri Axle Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

$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, NEW TIRES, ALUMINUM RIMS, 245...

Condition	Used
Usage	360,128 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	1/24/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 605HP, 18 Speed Manual

$119,000 USD

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

Condition	Used
Usage	492,000 Miles
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	2153
MLS Number	13995747
Category	Sleeper Semi Trucks
Last Updated	1/20/2026
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

(855) 489-___ SHOW
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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 80" Mid Roof Sleeper, Cummins 500HP, 18 Speed Manual

$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

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2020 Peterbilt 567 Tri Axle Sleeper Semi Truck - 72" Mid Roof Sleeper, Cummins 605HP, 18 Speed Manual

$119,000 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	1/20/2026
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

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2011 Western Star 4900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Detroit 500HP, 18 Speed Manual

$59,500 USD

2011 Western Star 4900SA, Only 52,000 original miles, 500 HP Detroit DD15, 18 Speed Overdrive transmission with 4.30 gears, 46k rear ends with full lockers. 16K front axle and #13,200...

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	1/21/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

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2020 International LT Tri Axle Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 605HP, 18 Speed Manual

$85,000 USD

155,000 miles on Brad New 605 hp Cummins Engine, Price includes 6 month/50k Mile Premium 2000 Warranty (Engine, Turbo, Injectors, Aftertreatment), 18 Speed Manual (RTLO20918B), Tri Axle...

Condition	Used
Usage	352,473 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	605 HP
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	2025
MLS Number	13425421
Category	Sleeper Semi Trucks
Last Updated	12/11/2025
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

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2000 Peterbilt 379 Tri Axle Sleeper Semi Truck - Mid Roof Sleeper, Caterpillar 550HP, 18 Speed Manual

$79,900 USD

550 Cat with Overhaul, Eaton Fuller 18 speed, 3.55 rear end ratio, dual 140 gallon tanks, dual straight exhaust, dual breathers, stainless visor, pusher axle, good 11R24.5 tires on aluminum...

Condition	Used
Usage	1,860,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	550 HP
Engine Model	Caterpillar 3406E
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	3.55 ratio
Stock Number	1704
MLS Number	14000056
Category	Sleeper Semi Trucks
Last Updated	1/22/2026
Location	New Salem, ND, US
Sold By	Pedigree Truck and Trailer Sales, Inc.

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2020 Kenworth W990 Tri Axle Day Cab Truck - Cummins 565HP, 18 Speed Manual

$139,500 USD

IN STOCK Robstown, TX USED 2020 Kenworth W990 day cab, 4 axle haul truck, Cummins X15 engine with 565 horsepower, 18 speed Eaton Fuller Transmission, pusher axle, 20k front axle, 22,500...

Condition	Used
Usage	11,465 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	65,500 lb 4.10 ratio
Stock Number	10564
MLS Number	13495671
Category	Day Cab Semi Trucks
Last Updated	9/27/2025
Location	Robstown, TX, US
Sold By	J&B Pavelka, Inc.

(844) 257-___ SHOW
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2017 Freightliner Cascadia 125 Tri Axle Vacuum Truck - Detroit, 560HP

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585082 Miles, Engine: DETROIT DD16, 560 HP, Fuel Type: Diesel, Drive: 8x4, Air Ride Suspension, Wheel Base: 240, Tri Rear Axles, Rear Axle Weight: 46000 lb

Condition	Used
Usage	585,082 Miles
Duty Class	Heavy Duty Vacuum Truck
Horse Power	560 HP
Engine Model	Detroit DD16
Drivetrain	8x4
Transmission	18 Speed
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	MCOPT2013HW5753
MLS Number	13721085
Category	Vacuum Trucks
Last Updated	9/13/2025
Location	Dallas, TX, US
Sold By	MCO Truck and Equipment

(866) 695-___ SHOW
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2012 Kenworth T800 Tri Axle Dump Truck - Cummins 525HP, 18 Speed Manual, 16' Dump

$125,000 USD

2012 T800 dump truck. New box and hoist, 525 Hp, 46K rears with full Lockers, Nice truck, runs and drives great

Condition	Used
Usage	396,470 Miles
Duty Class	Heavy Duty Dump Truck
Bed Length	16 ft.
Horse Power	525 HP
Engine Model	Cummins ISX15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	CON7374
MLS Number	13004997
Category	Dump Trucks
Last Updated	8/29/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(855) 605-___ SHOW
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2013 Freightliner Coronado 122 Tri Axle Vacuum Truck - Detroit, 505HP, 18 Speed Manual

$55,000 USD

good truck, runs great, clean, air seats, double frame, tilt/tele, air lift axle, power windows, power mirrors, full locking rears, STEPHANS TANK, VACUUM pump,

Condition	Used
Usage	473,279 Miles
Duty Class	Heavy Duty Vacuum Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	46,000 lb 3.73 ratio
Capacity	4620 Gallons
Stock Number	13COR473VAC
MLS Number	12345474
Category	Vacuum Trucks
Last Updated	11/10/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

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2011 Western Star 4900 Tandem Axle Cab & Chassis Truck - Mercedes-Benz, 450HP, 18 Speed Manual

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1007319 Miles, Engine: MERCEDES-BENZ MBE4000, 450 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 8x4, Air Ride Suspension, Wheels: All Aluminum, Wheel Base: 276, Tandem Rear...

Condition	Used
Usage	1,007,319 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	450 HP
Engine Model	MBE4000
Drivetrain	8x4
Transmission	18 Speed Manual
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	C-33451
MLS Number	12398635
Category	Cab & Chassis 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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Used 18 Speed 8x4 Trucks with Air Ride Suspension For Sale

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Showing 1 - 21 of 21 Truck Listings