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Used Tri Axle Trucks for Sale

Tri-axle trucks are built for one thing: pulling serious weight. 46,000-pound rears, full lockers, and the power to move anything you hook to them. At truckmarket.com, we stock clean tri-axles from Peterbilt, Kenworth, and other major brands.

Tri Axle Trucks at truckmarket.com

Our tri-axle inventory includes Peterbilt 389 tri-axle sleepers and daycabs, Peterbilt 367 tri-axles, Kenworth W900 tri-axles, and heavy-spec builds from Western Star and other manufacturers. Most of our tri-axles run 46,000-pound rear axles with full locking differentials — the specs heavy haulers demand. Many come with 20k front axles, 18-speed transmissions, and all aluminum wheels.

Whether you are pulling lowboys, hauling equipment, or running oversized loads, our tri-axles are built for the job. We also carry tri-axle dump trucks and tri-axle crane trucks for vocational applications. Browse below or call 877-987-8250 for details on specific units.

Current Inventory

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2025 KENWORTH T800W TRI AXLE SLEEPER 101064
2025 KENWORTH T800W TRI AXLE SLEEPER 101064
Cummins · 605 HP · 18 Spd
81,000 Miles
$217,750
20/20/46! Low Miles!
Details → Call
2022 PETERBILT 389 TRI AXLE DAYCAB 780701
2022 PETERBILT 389 TRI AXLE DAYCAB 780701
Cummins · 565 HP · 18 Spd
219,000 Miles
$187,750
20/20/46! Low Miles!
Details → Call
2015 PETERBILT 389 TRI AXLE SLEEPER 274882
2015 PETERBILT 389 TRI AXLE SLEEPER 274882
CAT · 550 HP · 18 Spd
181,000 Miles
$169,750
Pre ELOG CAT
Details → Call
2022 KENWORTH W900 TRI AXLE SLEEPER 121960
2022 KENWORTH W900 TRI AXLE SLEEPER 121960
Cummins · 565 HP · 18 Spd
331,000 Miles
$169,750
20k Front! 46k Rears!
Details → Call
2019 PETERBILT 389 TRI AXLE SLEEPER 611849
2019 PETERBILT 389 TRI AXLE SLEEPER 611849
Cummins · 565 HP · 18 Spd
228,000 Miles
$167,750
20/20/46! Low Miles!
Details → Call
2022 KENWORTH T800 TRI AXLE DAYCAB 151555DC
2022 KENWORTH T800 TRI AXLE DAYCAB 151555DC
Cummins · 500 HP · 18 Spd
120,000 Miles
$157,750
Full Lockers! Ext Cab!
Details → Call
2013 PETERBILT 389 TRI AXLE SLEEPER 201043
2013 PETERBILT 389 TRI AXLE SLEEPER 201043
CAT · 525 HP · 18 Spd
432,000 Miles
$152,750
$41,000 Overhaul!
Details → Call
2021 KENWORTH T800 TRI AXLE SLEEPER 441032
2021 KENWORTH T800 TRI AXLE SLEEPER 441032
Cummins · 565 HP
314,000 Miles
$147,750
20k Front! 46k Rears!
Details → Call
2010 KENWORTH W900L TRI AXLE DAYCAB 264504
2010 KENWORTH W900L TRI AXLE DAYCAB 264504
Cummins · 525 HP · 18 Spd
117,000 Miles
$89,750
One Owner! Low Miles!
Details → Call
2010 KENWORTH W900L TRI AXLE DAYCAB 264505
2010 KENWORTH W900L TRI AXLE DAYCAB 264505
Cummins · 525 HP · 18 Spd
186,000 Miles
$89,750
2 Available!
Details → Call
2012 MACK GU813 TRI AXLE DAYCAB 015699
2012 MACK GU813 TRI AXLE DAYCAB 015699
Mack · 505 HP · 18 Spd
374,000 Miles
$84,750
18/20/46! Full Lockers!
Details → Call
2015 INTERNATIONAL 5900 TRI AXLE DAYCAB 666573
2015 INTERNATIONAL 5900 TRI AXLE DAYCAB 666573
Cummins · 500 HP · 18 Spd
279,000 Miles
$82,750
46k Rears! Full Lockers!
Details → Call

Ready to Buy?

Call us or browse the full inventory. We ship nationwide.