6 Speed Tri Axle Trucks For Sale

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Featured Item

2024 Peterbilt 567 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic

$205,900 USD

Triaxle, 16' Ox Stampede Steel Dump w/60" Sides, MX13 Paccar 510 HP, Allison Automatic 6 Speed, 4.30 Ratio, 3 Stage Engine Brake, Chalmers, Double Frame, 230" WB, 21'4" Bridge, 20K FA, 46K...

Condition	Used
Usage	2,494 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ox Bodies
Horse Power	510 HP
Engine Model	Paccar MX-13
Transmission	6 Speed Allison RDS Automatic
Suspension	Chalmers
Rear Axle	Tri Axle
Rear End	4.30 ratio
Stock Number	RD690240
MLS Number	14053780
Category	Dump Trucks
Last Updated	1/2/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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Featured Item

2023 Kenworth T880 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

$189,729 USD

Triaxle, 17' Logan Steel Dump w/48" Sides, MX13 Paccar 510 HP, Allison Automatic 6 Speed, 4.56 Ratio, 3 Stage Engine Brake, HaulMaax EX, Double Frame, 20K FA, 46K RA, 20K Pusher, 222" WB, 20...

Condition	Used
Usage	5,355 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Logan
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tri Axle
Rear End	4.56 ratio
Stock Number	PJ244181
MLS Number	14042090
Category	Dump Trucks
Last Updated	1/2/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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Featured Item

2026 Peterbilt 567 Tri Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 17' Dump

$263,900 USD

NEW Triaxle, 17' R/S Steel Dump w/54" Sides, High Lift Gate, X15 Cummins 525 HP, Allison Automatic 6 Speed, 4.10 Ratio, 3 Stage Engine Brake, HaulMaax EX, Double Frame, 20K FA, 46K RA, 20K...

Condition	New
Usage	654 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	R/S GODWIN
Bed Length	17 ft.
Horse Power	525 HP
Engine Model	Cummins X15
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tri Axle
Stock Number	TD773172
MLS Number	13968958
Category	Dump Trucks
Last Updated	1/2/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2020 Peterbilt 567 Tri Axle Dump Truck - Paccar 430HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$139,900 USD

2020 Peterbilt 567 --- Tri Axle, MX-11 PACCAR 430 HP, Allison Automatic 6 Speed, 20,000 Front Axle, 46,000 Rear Axle, 226" Wheelbase, 22' Bridge, HaulMaax, 3 Stage Engine Brake, Air Brake,...

Condition	Used
Usage	12,380 Hours
Duty Class	Heavy Duty Dump Truck
Bed Length	17 ft.
Horse Power	430 HP
Engine Model	Paccar MX-11
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	718624
MLS Number	14068105
Category	Dump Trucks
Last Updated	1/20/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

2024 Western Star 47X Tri Axle Dump Truck - Detroit 470HP, 6 Speed Allison Rds Automatic, 16' Dump

Recently Updated

$187,900 USD

2024 Western Star 47X --- DD13 Detroit 470 HP, Allison Automatic 6 Speed, 20,000 Front Axle, 46,000 Rear Axle, 233" Wheelbase, 21' 8" Bridge, TUFF TRAC, Thick Frame, 3 Stage Engine Brake,...

Condition	Used
Usage	161,589 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	R/S GODWIN
Bed Length	16 ft.
Horse Power	470 HP
Engine Model	Detroit DD13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	TufTrac
Rear Axle	Tri Axle
Rear End	46,000 lb 3.91 ratio
Stock Number	UX2967
MLS Number	14040831
Category	Dump Trucks
Last Updated	1/20/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

2021 Mack Granite 84FR Tri Axle Dump Truck - MP7 425HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$149,900 USD

2021 Mack GRANITE 84FR --- Tri Axle, MP7 Mack 425 HP, Allison Automatic 6 Speed, 18,000 Front Axle, 46,000 Rear Axle, 228" Wheelbase, 21' 2" Bridge, Hendrickson Haulmaax, 3 Stage Engine...

Condition	Used
Usage	11,458 Hours
Duty Class	Heavy Duty Dump Truck
Bed Length	17 ft.
Horse Power	425 HP
Engine Model	Mack MP7
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	001718
MLS Number	13850185
Category	Dump Trucks
Last Updated	1/20/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

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2026 Peterbilt 589 Tri Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Amt

Recently Updated

$282,000 USD

NEW 2026 PETERBILT 589 DUMP TRUCK! 19'6" ALUMINUM SMOOTH SIDE DUMP BODY, POWERED WITH CUMMINS X15 ENGINE AND ALLISON 4500 SERIES AUTOMATIC TRANSMISSION. 20K FRONTS, 20K PUSHER AXLE, 46K,...

Condition	New
Usage	1,603 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Horse Power	565 HP
Engine Model	Cummins X15
Transmission	6 Speed Allison RDS Automated
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb 4.56 ratio
Stock Number	277748
MLS Number	13798294
Category	Dump Trucks
Last Updated	1/20/2026
Location	Butler, PA, US
Sold By	Hunter Truck

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2019 Peterbilt 567 Tri Axle Day Cab Truck - Cummins 485HP, 6 Speed Allison Rds Automatic

Newly Listed

$94,500 USD

Allison 4500RDS transmission with PTO provision, Cummins ISX15 485HP, Jake brake, Pete Air Trac suspension, 13,220 FA- 46,000 RA, Dual lockers, 4.33 ratio, 170" Cab/trunnion, Steerable lift...

Condition	Used
Usage	318,603 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	485 HP
Engine Model	Cummins ISX
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb 4.33 ratio
Stock Number	7010
MLS Number	14096699
Category	Day Cab Semi Trucks
Last Updated	1/17/2026
Location	Aberdeen, ID, US
Sold By	Diesel Depot

2026 Kenworth T880S Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Newly Listed

$239,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	576 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	66,000 lb 4.30 ratio
Stock Number	KN230282
MLS Number	14094531
Category	Dump Trucks
Last Updated	1/16/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

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2021 Peterbilt 567 Tri Axle Day Cab Truck - Cummins 565HP, 6 Speed Allison Rds Automatic

Price Drop $159,900 USD

2 line wet kit, 13,500 steerable lift axle with 9' spread, Sliding 5th wheel, 13,220 FA- 46K RA, 3 way lockers, 166" Cab/trunnion, Aluminum headache rack, Pete Air Trac suspension, Allison...

Condition	Used
Usage	117,151 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	565 HP
Engine Model	Cummins ISX15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Trac
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	6997
MLS Number	14023761
Category	Day Cab Semi Trucks
Last Updated	1/16/2026
Location	Aberdeen, ID, US
Sold By	Diesel Depot

2026 Kenworth W900 Tri Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Automatic, 17' Dump

Newly Listed

$265,795 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

Condition	New
Usage	2,842 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,500 lb 4.30 ratio
Stock Number	KN223126
MLS Number	14092493
Category	Dump Trucks
Last Updated	1/15/2026
Location	Rosedale, MD, US
Sold By	All Roads Trucks

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2018 Kenworth T880 Tri Axle Dump Truck - Cummins 425HP, 6 Speed Allison Rds Automatic

Recently Updated

Contact for price

Stock 7124C — 2018 Kenworth T880 Tri-axle Dump, Ox Body , Cummins 425hp , Allison Automatic, -16ft steel body with air gate, -210" wheelbase, -4.10 RAR, -Double frame, -11r24.5 tires with...

Condition	Used
Usage	335,055 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ox Bodies
Bed Length	16 ft.
Horse Power	425 HP
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	7124C
MLS Number	14065817
Category	Dump Trucks
Last Updated	1/15/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

2026 Kenworth W900 Tri Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$263,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	3,243 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,200 lb 4.30 ratio
Stock Number	KN223130
MLS Number	14049398
Category	Dump Trucks
Last Updated	1/15/2026
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

2026 Kenworth T880S Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$237,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	632 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson HMX460
Rear Axle	Tri Axle
Rear End	60,320 lb 4.30 ratio
Stock Number	KN223148
MLS Number	14023735
Category	Dump Trucks
Last Updated	1/15/2026
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

2026 Kenworth W900 Tri Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

Contact for price

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	3,081 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,200 lb 4.30 ratio
Stock Number	KN223125
MLS Number	14021754
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

2026 Kenworth W990 Tri Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$244,295 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

Condition	New
Usage	615 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,500 lb 4.30 ratio
Stock Number	KN223164
MLS Number	13999089
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

2026 Kenworth W990 Tri Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$244,295 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

Condition	New
Usage	623 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,500 lb 4.30 ratio
Stock Number	KN192759
MLS Number	13796997
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

2025 Kenworth T880 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$220,995 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	1,103 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Air-Flo
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	AG 460
Rear Axle	Tri Axle
Rear End	59,500 lb
Stock Number	KN165268
MLS Number	13360333
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

2025 Kenworth T880 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated

$220,995 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	945 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Air-Flo
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	AG 460
Rear Axle	Tri Axle
Rear End	66,000 lb 4.10 ratio
Stock Number	KN133614
MLS Number	13158425
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

2026 Kenworth T880S Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Newly Listed

$237,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...

Condition	New
Usage	595 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson HMX460
Rear Axle	Tri Axle
Rear End	60,320 lb 4.30 ratio
Stock Number	KN223145
MLS Number	14088000
Category	Dump Trucks
Last Updated	1/15/2026
Location	Upper Marlboro, MD, US
Sold By	All Roads Trucks

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2026 Peterbilt 567 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17.5' Dump

Newly Listed

Contact for price

2026 LEFTOVER. MX-13 CONNECTED TO AN ALLISON 6 SPEED RDS TRANSMISSION. READY TO WORK FOR SPRING!,

Condition	New
Usage	1,715 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	PIK RITE
Bed Length	17.5
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Chalmers
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	277680
MLS Number	14087904
Category	Dump Trucks
Last Updated	1/14/2026
Location	Allentown, PA, US
Sold By	Hunter Truck

2026 Kenworth W990 Tri Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 17' Dump

Price Drop $244,295 USD

Transfer this unit to your nearest Maryland / Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

Condition	New
Usage	673 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17 ft.
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tri Axle
Rear End	59,500 lb 4.30 ratio
Stock Number	KN230313
MLS Number	14072188
Category	Dump Trucks
Last Updated	1/14/2026
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

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2023 Kenworth T880 Tri Axle Dump Truck - Cummins 500HP, 6 Speed Allison Rds Automatic

Recently Updated

$189,900 USD

277751 Miles, Engine: CUMMINS X15, 500 HP, 6 Speed Allison RDS Automatic Transmission, Drive: 8x4, Hendrickson HMX460 Suspension, Wheels: All Aluminum, Wheel Base: 249, Tri Rear Axles, Front...

Condition	Used
Usage	277,751 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson HMX460
Rear Axle	Tri Axle
Rear End	46,000 lb
Stock Number	285492
MLS Number	14072161
Category	Dump Trucks
Last Updated	1/14/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2026 Kenworth T880 Tri Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Automatic, 17.5' Dump

Recently Updated

$259,900 USD

2026 Kenworth T880 --- Tri Axle, X15 Cummins 565 HP, Allison Automatic 6 Speed, 4.30 Ratio, 18,740 Front Axle, 46,000 Rear Axle, 228" Wheelbase, 21' 1" Bridge, Chalmers, Double Frame, 3...

Quantity	4
Condition	New
Usage	16 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	17.5
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Chalmers
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	216084
MLS Number	14068006
Category	Dump Trucks
Last Updated	1/14/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales