Used 6 Speed Automatic 6x4 Trucks For Sale

Your Current Search

Industry
Trucks

Drive Type
6x4

Transmission Type
Automatic

Transmission Speeds
6 Speed

Condition
Used

Click the to remove the filter.

Save Search

Email Alert

What's Save Search and Email Alert?

Narrow Your Search

Keyword Search

Search within the selected criteria

Industry

Manufacturer

Model

Select a manufacturer to view available models.

Condition

Model Year

GVWR Category

Rear Axle

Transmission Type

Transmission Speed

Drive Train

Engine Manufacturer

Suspension Type

Cab Style

Fuel Type

Mileage

Horsepower

Price

Country

State / Region

Select a country to view available states.

Market Type

Filter by Category

Sleeper Semi Trucks

Day Cab Semi Trucks

Dump Trucks

Delivery / Moving / Straight / Box Trucks

Digger Derrick Trucks

Plow / Spreader Trucks

Flatbed Dump Trucks

Bridge Inspection Trucks

Hooklift Trucks

Vacuum Trucks

1-25 of 141 results

2015 Peterbilt 348 Rollback Tow Truck - Century

2020 Western Star 4700 Dump Truck - Detroit 470HP, 6 Speed Allison Rds Automatic, 19' Dump

Newly Listed

Call for price

Make dump boxLANAU, Dump box model19-6X42X60, Dump box typeCONSTRUCTION, Side wall42", Dump box serial #0319SHD0243, Manufactured date03 M - 19 Y, Door60", Door opening2 WAY, Heated boxNO,...

Condition	Used
Duty Class	Heavy Duty Dump Truck
Upfit Make	Lanau
Bed Length	19 ft.
Horse Power	470 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.89 ratio
Stock Number	C-36354
MLS Number	13552504
Category	Dump Trucks
Last Updated	5/1/2025
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(833) 300-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

18 0

2018 Freightliner M2 106 26 ft Box Truck - 300HP, 6 Speed Automatic

Price Drop

$47,900 USD

STOCK#2619, 26 FT BOX TRUCK TANDEM * 2018 FREIGHTLINER M2 * ENGINE CUMMINS ISL 8.9L 300HP * DIESEL * AIR RIDE SUSPENSION * AUTOMATIC * GVW 52,000 * MILEAGE 186,755 * WHITE * WHEEL BASE 258 *...

Condition	Used
Usage	186,755 Miles
Duty Class	Heavy Duty Box Truck
Box Length	26 ft.
Horse Power	300 HP
Engine Model	Cummins ISL
Drivetrain	6x4
Transmission	6 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2619
MLS Number	13290809
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	5/1/2025
Location	Orlando, FL, US
Sold By	Orange Truck Sales, LLC

(855) 506-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

19 1

2016 Freightliner M2 112 Tandem Axle Cab & Chassis Truck - Detroit, 370HP, 6 Speed Allison Rds Automatic

Price Drop

$51,900 USD

2016 Freightliner MS-112, Detroit DD13 370HP Engine, Automatic 6 Spd Allison 3000 RDS Transmission, Air Ride Suspension, Tandem Axle, 58,000 GVW, 18,000# D739914 Front Axle, 40,000# Alliance...

Condition	Used
Usage	12,544 Hours
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	370 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.30 ratio
Stock Number	16WH232
MLS Number	12935282
Category	Cab & Chassis Trucks
Last Updated	4/30/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

(855) 370-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

23 0

2016 Freightliner M2 106 Rollback Tow Truck - Century

Price Drop

$76,900 USD

2016 Freightliner Business Class M2 106 Rollback, Cummins ISL9 350 HP Engine, Allison RDS 3000 6 Speed Transmission, 28ft x 102", 30,000lb Bed Rating, P/S, A/C, Power Windows and Locks, Tilt...

Condition	Used
Usage	13,611 Hours
Duty Class	Heavy Duty Rollback Tow Truck
Upfit Make	Century
Bed Length	28 ft.
Horse Power	350 HP
Engine Model	Cummins Cummins ISL
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.78 ratio
Winch	Yes
Stock Number	260028
MLS Number	13424375
Category	Rollback Tow Trucks
Last Updated	4/29/2025
Location	Mcdonough, GA, US
Sold By	The Truck and Trailer Connection INC

(866) 714-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

23 0

2015 Kenworth T440 Rollback Tow Truck - Century

2024 Kenworth T880 Roll Off Truck - Cummins, 500HP, 6 Speed Allison Rds Automatic

Newly Listed

$244,900 USD

2024 Kenworth T880 --- Tandem Axle, X15 Cummins 500 HP, Allison Automatic 6 Speed, 4.56 Ratio, 20,000 Front Axle, 46,000 Rear Axle, 262" Wheelbase, 24' Bridge, Chalmers, Double Frame, 3...

Quantity	2
Condition	Used
Usage	57,235 Miles
Duty Class	Heavy Duty Roll Off Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Chalmers
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.56 ratio
Stock Number	368839
MLS Number	13544716
Category	Roll Off Trucks
Last Updated	4/29/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(855) 804-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

22 1

2012 Freightliner M2 106 Dump Truck - Cummins 260HP, 6 Speed Allison Rds Automatic, 14' Dump

Price Drop

$64,900 USD

PRICE REDUCED!! THIS 2012 FREIGHTLINER M2 106 TANDEM AXLE DUMP IS FOR YOU! CUMMINS ISB 260HP, ALLISON 3500RDS-P AUTOMATIC 6-SPEED TRANSMISSION, ATC, DIFF LOCK, DRIVER'S SEAT W/ AIR PEDESTAL,...

Condition	Used
Usage	103,842 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Godwin
Bed Length	14 ft.
Horse Power	260 HP
Engine Model	Cummins ISB
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Tandem Axle
Rear End	40,000 lb 6.49 ratio
Stock Number	CHBR3049U
MLS Number	13048378
Category	Dump Trucks
Last Updated	5/2/2025
Location	Roanoke, VA, US
Sold By	Truck Enterprises Inc.

(877) 810-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

53 1

2018 Freightliner Cascadia 113 Evolution Sleeper Semi Truck - Detroit, Automatic

2017 Peterbilt 567 Dump Truck - Paccar 450HP, 6 Speed Automatic

Price Drop

$75,000 USD

2017 Peterbilt 567 Dump Truck, 450hp Paccar MX-13, 6spd Allison Automatic, Air ride suspension, 605k Mi, Nationwide Delivery Available

Condition	Used
Usage	605,000 Miles
Duty Class	Heavy Duty Dump Truck
Horse Power	450 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	6 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	44,000 lb
Stock Number	2986
MLS Number	13307634
Category	Dump Trucks
Last Updated	4/26/2025
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(833) 904-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

51 0

2020 Western Star 4900 Tandem Axle 20 ft Flatbed Truck - 500HP, 6 Speed Allison Rds Automatic

$140,000 USD

2020 Western Star 4900SB Sleeper Flatbed Truck With Forklift Mount, Detroit Diesel DD16, 500HP, 6 Speed Allison 4500RDS Automatic Transmission, 219,960 ECM Verified Miles 6,678 ECM Verified...

Condition	Used
Usage	6,678 Hours
Duty Class	Heavy Duty Flatbed Truck
Bed Length	20 ft.
Horse Power	500 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Winch	Yes
Stock Number	17089D
MLS Number	13435814
Category	Flatbed Trucks
Last Updated	4/25/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

44 0

2016 Peterbilt 348 Dump Truck - Paccar 330HP, 6 Speed Allison Rds Automatic, 15' Dump

$119,500 USD

2016 Peterbilt 348 Tandem Axle Dump Truck, 8.9L Paccar PX-9 Diesel Engine, 330 HP, Engine Brake, Allison 6 Speed Automatic Transmission, ONLY 10,809 ECM Verified Miles 3,300 ECM Verified...

Condition	Used
Usage	3,300 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ledwell
Bed Length	15 ft.
Horse Power	330 HP
Engine Model	Paccar PX9
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.88 ratio
Stock Number	T17001D
MLS Number	13537720
Category	Dump Trucks
Last Updated	4/30/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

16 0

2015 Freightliner 114SD Tandem Axle Flatbed Truck - 6 Speed Automatic

$90,000 USD

2015 FREIGHTLINER 114SD WITH 238,215 MILES, DETROIT DD13 ENGINE, 450 HP, 6X4 DRIVE, 24X96 FLATBED, AUTOMATIC TRANSMISSION, PRINCETON KIT, AIR BRAKES, 66,000 GVW!,

Condition	Used
Usage	238,215 Miles
Duty Class	Heavy Duty Flatbed Truck
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	6 Speed Automatic
Suspension	Hendrickson
Rear Axle	Tandem Axle
Rear End	46,000 lb
Stock Number	8100
MLS Number	13537188
Category	Flatbed Trucks
Last Updated	5/1/2025
Location	Tuscaloosa, AL, US
Sold By	Bobby Park Truck and Equipment Inc.

(844) 913-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

16 0

2015 Kenworth T370 Tandem Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Hs Automatic

$79,500 USD

2015 Kenworth T-370 Tandem Axle Cab Chassis, 8.9L Paccar PX-9 Diesel Engine, 300 HP, Engine Brake, Allison 3000 HS 6 Speed Automatic Transmission, ONLY 68,298 Miles 2,081 Engine Hours, 52K...

Condition	Used
Usage	2,081 Hours
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX9
Drivetrain	6x4
Transmission	6 Speed Allison HS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 5.29 ratio
Stock Number	T17199D
MLS Number	13533703
Category	Cab & Chassis Trucks
Last Updated	4/24/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

9 0

2003 International 2574SF Day Cab Truck - Cummins 435HP, 6 Speed Allison Rds Automatic

$39,500 USD

Dual lockers, 2 line wet kit, Allison 4560P transmission, Double frame, Cummins N14 435HP, Jake brake, Hendrickson Haulmaax suspension, 4.88 ratio, 16K FA- 40K RA, Sliding 5th wheel, 159"...

Condition	Used
Usage	137,965 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	Cummins N14
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.88 ratio
Stock Number	6788
MLS Number	13533564
Category	Day Cab Semi Trucks
Last Updated	4/26/2025
Location	Aberdeen, ID, US
Sold By	Diesel Depot

(844) 714-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

12 0

2008 Peterbilt 340 Tandem Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$68,900 USD

long frame chassis ready for 20' body, 3500RDS Allison auto w/ hot shift pto, like new rear traction tires,

Condition	Used
Usage	11,208 Hours
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX8
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Tandem Axle
Rear End	40,000 lb 6.17 ratio
MLS Number	13247487
Category	Cab & Chassis Trucks
Last Updated	4/23/2025
Location	Rigby, ID, US
Sold By	Grover's All-Wheels, LLC

(844) 611-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

33 0

2008 Sterling L8500 22 ft Box Truck - 300HP, 6 Speed Allison Hs Automatic, Roll up Door, Liftgate

$26,977 USD

2008 Sterling L8500 22' x 102" x 84" Tandem-Axle Van Delivery Truck, Cummins ISC 8.3L @ 300 H.P., Allison 6-Speed Automatic O/D Transmission, 260" W.B., Tuf-Trac Suspension, 52K G.V.W.R.,...

Condition	Used
Usage	10,786 Hours
Duty Class	Heavy Duty Box Truck
Box Length	22 ft.
Horse Power	300 HP
Engine Model	Cummins ISC300
Drivetrain	6x4
Transmission	6 Speed Allison HS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Door Type	Roll up
Lining Type	Aluminum
Liftgate	Yes
Stock Number	3646
MLS Number	13005084
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	4/25/2025
Location	Phoenix, AZ, US
Sold By	American Truck Sales & Salvage

(844) 882-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

17 0

2009 Kenworth T370 Tandem Axle Cab & Chassis Truck - Paccar, 240HP, 6 Speed Allison Rds Automatic

Price Drop

$62,900 USD

3500 Allison auto w/ hot shift pto, vertical exhaust, cruise, engine brake, NEW DOC DPF in OCT 2022 @ 192,857 miles,

Condition	Used
Usage	199,635 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	330 HP
Engine Model	Paccar PX8
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Chalmers
Rear Axle	Tandem Axle
Rear End	40,000 lb 6.14 ratio
Stock Number	GW22104
MLS Number	11645983
Category	Cab & Chassis Trucks
Last Updated	4/23/2025
Location	Rigby, ID, US
Sold By	Grover's All-Wheels, LLC

(844) 611-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

58 0

2019 Freightliner M2 106 26 ft Refrigerated Truck - 270HP, 6 Speed Allison Hs Automatic, Thermo King, Liftgate

Price Drop

$49,995 USD

For Sale: 2019 Freightliner M2 106 26' Reefer Box Truck with Liftgate, This 2019 Freightliner M2 106 is a heavy-duty reefer box truck, designed for temperature-sensitive cargo transportation...

Condition	Used
Usage	293,020 Miles
Duty Class	Heavy Duty Refrigerated Truck
Box Length	26 ft.
Horse Power	270 HP
Engine Model	Cummins ISL
Drivetrain	6x4
Transmission	6 Speed Allison HS Automatic
Reefer Unit	Thermo King
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb
Door Type	Roll up
Liftgate	Yes
Stock Number	KX2185
MLS Number	13398366
Category	Refrigerated Trucks
Last Updated	4/22/2025
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(844) 982-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

37 0

2014 Freightliner 114SD Tandem Axle 20 ft Flatbed Truck - 410HP, 6 Speed Allison Rds Automatic

$88,977 USD

2014 Freightliner Coronado 114-SD 20' x 96" Aluminum Tandem-Axle Flat-Bed Truck, Detroit DD13 12.8L @ 410 H.P., Engine Brake, Allison 4000-RDS 6-Speed Automatic O/D Transmission, 4.89 Ratio,...

Condition	Used
Usage	171,515 Miles
Duty Class	Heavy Duty Flatbed Truck
Bed Length	20 ft.
Horse Power	410 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.89 ratio
Winch	Yes
Stock Number	4325
MLS Number	13529166
Category	Flatbed Trucks
Last Updated	4/23/2025
Location	Phoenix, AZ, US
Sold By	American Truck Sales & Salvage

(844) 882-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

34 0

2019 Freightliner M2 106 4000 Gallon Water Truck - Cummins 300HP, 6 Speed Allison Rds Automatic

$122,500 USD

2019 Freightliner M2-106 Tandem Axle 4,000 Gallon Water Truck, Cummins L9 8.9L Turbo Diesel Engine, 300 HP, Exhaust Brake, Allison 3000 RDS 6 Speed Automatic Transmission, ONLY 39,219 ECM...

Condition	Used
Usage	6,880 Hours
Duty Class	Heavy Duty Water Truck
Upfit Make	Ledwell
Horse Power	300 HP
Engine Model	Cummins L9
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 5.29 ratio
Capacity	4000 Gallons
Stock Number	T16940D
MLS Number	13449098
Category	Water Trucks
Last Updated	4/25/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

28 0

2012 Freightliner M2 106 Tandem Axle 24 ft Flatbed Truck - 350HP, 6 Speed Allison Rds Automatic

$38,977 USD

2012 Freightliner M2106 24' x 102" Tandem-Axle Flat-Bed Truck W/ Fork-Lift Package, Cummins ISC 8.3L @ 350 H.P., Exhaust Brake, Allison 3000-RDS 6-Speed Automatic O/D Transmission, 5.29...

Condition	Used
Usage	2,335 Hours
Duty Class	Heavy Duty Flatbed Truck
Bed Length	24 ft.
Horse Power	350 HP
Engine Model	Cummins ISC350
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 5.29 ratio
Winch	Yes
Stock Number	3906
MLS Number	12971207
Category	Flatbed Trucks
Last Updated	4/23/2025
Location	Phoenix, AZ, US
Sold By	American Truck Sales & Salvage

(844) 882-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

20 0

2020 Kenworth T880 Day Cab Truck - Paccar 405HP, 6 Speed Allison Rds Automatic

$84,900 USD

2020 Kenworth T880 Day Cabs, MX-13 455 HP Engine, Allison 4500RDS Automatic Transmission, Electric Windows and Locks, AM/FM Radio, Locking Differentials, Suspension Air Dump Valve, Air Slide...

Condition	Used
Usage	8,777 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	405 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	44,000 lb 4.11 ratio
Stock Number	10212
MLS Number	13527310
Category	Day Cab Semi Trucks
Last Updated	4/18/2025
Location	Robstown, TX, US
Sold By	J&B Pavelka, Inc.

(844) 257-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

8 0

2016 Freightliner M2 106 Tandem Axle Vacuum Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic

$119,995 USD

For Sale: 2016 Freightliner M2 106 Ramvac HX-3 Hydro Excavation Vacuum Truck This 2016 Freightliner M2 106 is a fully equipped Ramvac HX-3 hydro excavation vacuum truck, ideal for utility...

Condition	Used
Usage	1,338 Hours
Duty Class	Heavy Duty Vacuum Truck
Horse Power	350 HP
Engine Model	Cummins ISL
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb
Capacity	50 Gallons
Stock Number	GJ8832
MLS Number	13527091
Category	Vacuum Trucks
Last Updated	4/18/2025
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(844) 982-___ SHOW
NUMBERCall Seller

Email Seller

Save

More Info

13 1

2019 Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 6 Speed Allison Hs Automatic

$42,900 USD

2019 Freightliner Cascadia 125 Day Cab, Detroit DD13 450HP Engine, Automatic 6 Spd Allison 4000 HS Transmission, Tandem Axle, Air Ride Suspension, 52,500 GVW, 12,500# Front Axle, 40,000#...

Condition	Used
Usage	21,459 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	6 Speed Allison HS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.90 ratio
Stock Number	19WH080
MLS Number	13442806
Category	Day Cab Semi Trucks
Last Updated	4/17/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.