New 6 Speed Trucks with Cummins Engines For Sale

Your Current Search
Industry
Trucks
Transmission Speeds
6 Speed
Engine Manufacturer
Cummins
Inspection Report
No
Condition
New
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Trucks (537)
Attachments (1)
Cars (1)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
Transmission Type
Transmission Speed
6 Speed (539)
Engine Manufacturer
Cummins (539)
Fuel Type
Mileage
-
Horsepower
-
Price
-
State / Region
Select a country to view available states.
Market Type
1-25 of 539 results
1-25 of 539 results
Featured Item
Peterbilt 567 Quad Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 20' Dump
15 0

2026 Peterbilt 567 Quad Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 20' Dump

$269,900 USD
Quad Axle, 20' Ox Steel Dump w/42" Sides, High Lift Gate, X15 Cummins 525 HP, Allison Automatic 6 Speed, 4.10 Ratio, 3 Stage Engine Brake, HaulMaax, Double Frame, 20K FA, 46K RA, (2) 13,500...
ConditionNew
Usage18 Hours
Duty ClassHeavy Duty Dump Truck
Upfit MakeOx Bodies
Bed Length20 ft.
Horse Power525 HP
Engine ModelCummins X15
Transmission6 Speed Allison RDS Automatic
SuspensionHaulMaax
Rear AxleQuad Axle
Rear End4.10 ratio
Stock NumberTD791070
MLS Number13621713
CategoryDump Trucks
Last Updated6/6/2025
Location
Chatham, VA, US
Sold By

J&J Truck Sales

Autocar DC64 Cab & Chassis Truck
13 0

2024 Autocar DC64 Cab & Chassis Truck

Recently Updated
$188,770 USD
AUTOCAR - MAD MAX BLACKED OUT VERSION!!!! Quad axle, tri-axle, tandem, configurations available, 20K steers, 46K drives air ride, full locker, Cummins, Allison, 100+ year old Autocar is ...
ConditionNew
Usage1,015 Miles
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power455 HP
Engine ModelCummins X12
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleQuad Axle
Rear End46,000 lb 4.56 ratio
Stock NumberRC247593
MLS Number13040451
CategoryCab & Chassis Trucks
Last Updated6/13/2025
Location
Roseville, MN, US
Sold By

Universal Truck Sales

Autocar DC64 Cab & Chassis Truck
16 0

2024 Autocar DC64 Cab & Chassis Truck

Recently Updated
Call for price
Autocar DC64 Quint Axle Cab Chassis. Multiple Configurations Available, 20K Front Axle, 46K Rear Axles, Three 8K Lift Axles, 90K GVWR. Cummins Engine, 475 HP. AIR Ride Suspension. Allison...
ConditionNew
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power475 HP
Engine ModelCummins X12
Drivetrain6x4
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End70,000 lb 4.30 ratio
MLS Number12755679
CategoryCab & Chassis Trucks
Last Updated6/13/2025
Location
Roseville, MN, US
Sold By

Universal Truck Sales

RAM 3500 Tradesman Mechanic / Service Truck - Cummins, 370HP, 6 Speed Automatic
32 0

2024 RAM 3500 Tradesman Mechanic / Service Truck - Cummins, 370HP, 6 Speed Automatic

Recently Updated
$78,695 USD
New 2024 Ram 3500 Reg Cab 4x4 8' Royal Service Body work truck for sale. The sale price includes the utility truck body, ladder rack and sliding roll top telescoping lid over the bed. Stock#...
ConditionNew
Usage12 Miles
Duty ClassLight Duty Service Truck
Horse Power370 HP
Drivetrain4x4
Transmission6 Speed Automatic
Rear AxleSingle Axle
Stock NumberADRB240167
MLS Number12701642
CategoryMechanic / Utility / Service Trucks
Last Updated6/13/2025
Location
Avondale, AZ, US
Sold By

Larry H. Miller Ford - Mesa

2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body
8 0

2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body

Newly Listed
$162,495 USD
THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Stainless SteelTank (5 YR...
Warranty
ConditionNew
Duty ClassHeavy Duty Sewer / Septic Truck
Upfit TypeTank Body
Upfit MakeIron-Vac
Upfit Model2500 Gallon Steel
Horse Power300 HP
Engine ModelCummins 6.7L
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End5.57 ratio
Capacity2500 Gallons
Stock Number1M2MDBABXSS075907
MLS Number13642852
CategorySewer / Septic Trucks
Last Updated6/12/2025
Location
Searcy, AR, US
Sold By

SepticTrucks.com

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Aluminum Tank Body
8 0

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Aluminum Tank Body

Newly Listed
$163,090 USD
THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Aluminum Tank (5 YR...
Warranty
ConditionNew
Duty ClassHeavy Duty Sewer / Septic Truck
Upfit TypeTank Body
Upfit MakeIron-Vac
Upfit Model2500 Gallon
Horse Power300 HP
Engine ModelCummins 6.7L
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End5.57 ratio
Capacity2500 Gallons
Stock Number1M2MDBAB6SS075905
MLS Number13642848
CategorySewer / Septic Trucks
Last Updated6/12/2025
Location
Searcy, AR, US
Sold By

SepticTrucks.com

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body
7 0

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body

Newly Listed
$157,779 USD
THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Stainless SteelTank (5 YR...
Warranty
ConditionNew
Duty ClassHeavy Duty Sewer / Septic Truck
Upfit TypeTank Body
Upfit MakeIron-Vac
Upfit Model2500 Gallon Steel
Horse Power300 HP
Engine ModelCummins 6.7L
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Capacity2500 Gallons
Stock Number1M2MDBAB4SS075904
MLS Number13642840
CategorySewer / Septic Trucks
Last Updated6/12/2025
Location
Searcy, AR, US
Sold By

SepticTrucks.com

RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic
20 0

2024 RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

Newly Listed
Call for price
BoxCar Pro 55 Curb side reinforced crane box rated at 55,000 ft/pds will handle the newer 8500#, cranes, , 100% baked on powder coated with a zinc rich primer to maximize road protection, for...
ConditionNew
Usage18 Miles
Duty ClassMedium Duty Service Truck
Horse Power360 HP
Drivetrain4x4
Transmission6 Speed Automatic
Rear AxleSingle Axle
Stock NumberRG182174
MLS Number13642469
CategoryMechanic / Utility / Service Trucks
Last Updated6/12/2025
Location
Fairfield, TX, US
Sold By

Service Truck Depot

IN STOCK - 2025 Peterbilt 537 Sewer / Septic Truck - Iron-Vac 2500 Gallon Stainless Steel Tank Tank Body
10 0

IN STOCK - 2025 Peterbilt 537 Sewer / Septic Truck - Iron-Vac 2500 Gallon Stainless Steel Tank Tank Body

Recently Updated
$159,318 USD
THIS UNIT IS CURRENTLY IN STOCK 2025 Peterbilt 537 6.7L PACCAR PX-7 Engine (300HP) Allison 6 Speed 2500 Automatic Transmission 33k GVWR 2500 Gallon Stainless Steel Tank Masport Titan (407...
Warranty
ConditionNew
Duty ClassHeavy Duty Sewer / Septic Truck
Upfit TypeTank Body
Upfit MakeIron-Vac
Upfit Model2500 Gallon
Horse Power300 HP
Engine ModelCummins 6.7
Transmission6 Speed Allison RDS
SuspensionAir Ride
Rear AxleSingle Axle
Capacity2500 Gallons
Stock Number784073
MLS Number12495875
CategorySewer / Septic Trucks
Last Updated6/12/2025
Location
Searcy, AR, US
Sold By

SepticTrucks.com

Freightliner 114SD Dump Truck - Cummins 350HP
16 0

2025 Freightliner 114SD Dump Truck - Cummins 350HP

Recently Updated
$156,145 USD
2025 Freightliner 114SD, 14FT Ox Dump, Cummins L9 350 HP, Allison 3000RDS Transmission, 18,000 Front, 40,000 Rear, 58,000 GVW, Trailer Towing Provision, PRICE INCLUDES FET,
ConditionNew
Usage1,175 Miles
Duty ClassHeavy Duty Dump Truck
Horse Power350 HP
Drivetrain6x4
Transmission6 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 5.86 ratio
Stock Number257357
MLS Number13603566
CategoryDump Trucks
Last Updated6/12/2025
Location
Tampa, FL, US
Sold By

Southport Truck Group

Freightliner M2 106 Single Axle Dump Truck - Cummins 300HP
18 0

2025 Freightliner M2 106 Single Axle Dump Truck - Cummins 300HP

Recently Updated
$118,408 USD
2025 Freightliner M2106, 11FT OX DUMP BODY, Cummins L9 300 HP, Allison 3500RDS, 12K Front Axle, 21K Rear Axle, 33K GVWR, Great Little Working Dump!,
ConditionNew
Usage652 Miles
Duty ClassHeavy Duty Dump Truck
Horse Power300 HP
Drivetrain4x2
Transmission6 Speed
SuspensionAirLiner
Rear AxleSingle Axle
Rear End21,000 lb 5.63 ratio
Stock Number257352
MLS Number13446919
CategoryDump Trucks
Last Updated6/12/2025
Location
Tampa, FL, US
Sold By

Southport Truck Group

Freightliner 114SD Dump Truck - Cummins 350HP
16 0

2025 Freightliner 114SD Dump Truck - Cummins 350HP

Recently Updated
$156,145 USD
2025 Freightliner 114SD, 14FT 13/16 Yard Ox Dump, Cummins L9 350HP, Allison 3000RDS Transmission, 18K Front Axle, 40K Rear Axle, 58K GVWR, Air Gladhands and 7 Way End of Frame, 177 Inch...
ConditionNew
Usage1,154 Miles
Duty ClassHeavy Duty Dump Truck
Horse Power350 HP
Drivetrain6x4
Transmission6 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 5.86 ratio
Stock Number257354
MLS Number13444108
CategoryDump Trucks
Last Updated6/12/2025
Location
Fort Myers, FL, US
Sold By

Southport Truck Group

Kenworth T380 Single Axle Garbage Truck - Cummins, 360HP, 6 Speed Allison Rds Automatic
17 2

2025 Kenworth T380 Single Axle Garbage Truck - Cummins, 360HP, 6 Speed Allison Rds Automatic

Recently Updated
$215,900 USD
Call Luke Wheeler @ ECONOVO 13 YD PACKER w/ REEVING CYLINDER WINCH. Kick bar w/ rollers. back up camera. full strobe and lighting package. Cart tipper can be added for additional fee
ConditionNew
Usage12 Miles
Duty ClassHeavy Duty Garbage Truck
Horse Power360 HP
Engine ModelCummins L9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End23,000 lb 5.57 ratio
Stock NumberSM180184
MLS Number13433636
CategoryGarbage Trucks
Last Updated6/12/2025
Location
Roanoke, VA, US
Sold By

Truck Enterprises Inc.

Freightliner 114SD Roll Off Truck - Cummins, 455HP
9 0

2026 Freightliner 114SD Roll Off Truck - Cummins, 455HP

Newly Listed
Call for price
FOR SALE! A brand new Freightliner 114SD 6x4 upfitted with a Galbreath U5-OR-174 roll-off. This vehicle is powered by a 455 hp Cummins X12 diesel motor, and gears are shifted via an Allison...
ConditionNew
Horse Power455 HP
Engine ModelCummins X12 D
Drivetrain6x4
Transmission6 Speed
SuspensionTufTrac
Rear End46,000 lb
Stock NumberTDWK1065
MLS Number13641324
CategoryRoll Off Trucks
Last Updated6/12/2025
Location
Kansas City, MO, US
Sold By

Custom Truck One Source

Freightliner 114SD Roll Off Truck - Cummins, 455HP
9 0

2026 Freightliner 114SD Roll Off Truck - Cummins, 455HP

Newly Listed
Call for price
FOR SALE! A brand new Freightliner 114SD 6x4 upfitted with a Galbreath U5-OR-174 roll-off. This vehicle is powered by a 455 hp Cummins X12 diesel motor, and gears are shifted via an Allison...
ConditionNew
Horse Power455 HP
Engine ModelCummins X12 D
Drivetrain6x4
Transmission6 Speed
SuspensionTufTrac
Rear End46,000 lb
Stock NumberTDWK1059
MLS Number13641323
CategoryRoll Off Trucks
Last Updated6/12/2025
Location
Kansas City, MO, US
Sold By

Custom Truck One Source

Freightliner M2 106 Chipper Truck - Cummins, 250HP
5 0

2025 Freightliner M2 106 Chipper Truck - Cummins, 250HP

Newly Listed
$120,630 USD
FOR SALE! A brand new Freightliner M2106 4x2 upfitted with a Arbortech 14x72 chip body. This vehicle is powered by a 250 hp Cummins 6.7L diesel motor, and gears are shifted via an Allison...
ConditionNew
Horse Power250 HP
Engine ModelCummins 6.7L D
Drivetrain4x2
Transmission6 Speed
SuspensionSpring
Rear End21,000 lb
Stock NumberSHVY5895
MLS Number13641242
CategoryChipper Trucks
Last Updated6/12/2025
Location
Lynchburg, VA, US
Sold By

Custom Truck One Source

Freightliner M2-106 Plus Tandem Axle Flatbed Truck - 350HP, Automatic
31 0

2026 Freightliner M2-106 Plus Tandem Axle Flatbed Truck - 350HP, Automatic

Recently Updated
$149,995 USD
New 2026 Freightliner M2106 at Broward Freightliner in Pompano Beach, Florida.Cummins 8.9L L9 Diesel engine with 350 Horsepower and 1050 lb-ft of torque. It's paired with the best-in-class,...
ConditionNew
Usage323 Miles
Bed Length24 ft.
Horse Power350 HP
Engine ModelCummins L9
Drivetrain6x4
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberTHWJ3158
MLS Number13375737
CategoryFlatbed Trucks
Last Updated6/12/2025
Location
Pompano Beach, FL, US
Sold By

Go Freightliner of Broward

Kenworth T280 Single Axle Hooklift Truck - Cummins, 360HP, 6 Speed Allison Rds Automatic
13 0

2025 Kenworth T280 Single Axle Hooklift Truck - Cummins, 360HP, 6 Speed Allison Rds Automatic

Recently Updated
$205,900 USD
Call/Text Luke Wheeler @ Palfinger PHT-22M, 12-16’ containers, 54/62” hook height, Vulcan on board scale system with printer Roll-rite DC203 tarp system 36x24x24 cam lock toolbox on...
ConditionNew
Usage1 Miles
Duty ClassMedium Duty Hooklift Truck
Horse Power360 HP
Engine ModelCummins L9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End16,000 lb 5.57 ratio
Stock Number180898
MLS Number13208932
CategoryHooklift Trucks
Last Updated6/12/2025
Location
Roanoke, VA, US
Sold By

Truck Enterprises Inc.

Kenworth T880 Tandem Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic
7 0

2025 Kenworth T880 Tandem Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic

Recently Updated
$207,485 USD
COULD BE TANK WAGON, DUMP, FLAT BED, ETC. CALL LUKE WHEELER @,
Quantity5
ConditionNew
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power450 HP
Engine ModelCummins X15P
Drivetrain6x4
Transmission6 Speed Allison RDS Automatic
Suspension8 Bag Air Ride
Rear AxleTandem Axle
Rear End46,000 lb 4.10 ratio
Stock NumberSJ133852
MLS Number13115628
CategoryCab & Chassis Trucks
Last Updated6/12/2025
Location
Roanoke, VA, US
Sold By

Truck Enterprises Inc.

Kenworth T880 Tri Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic
9 0

2025 Kenworth T880 Tri Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic

Newly Listed
$161,995 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: 2025 Model: T880...
ConditionNew
Usage56 Miles
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson HMX460
Rear AxleTri Axle
Rear End59,500 lb 3.91 ratio
Stock NumberKF128589
MLS Number13638035
CategoryCab & Chassis Trucks
Last Updated6/11/2025
Location
Fort Lauderdale, FL, US
Sold By

All Roads Trucks

Kenworth T880 Tri Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic
9 0

2025 Kenworth T880 Tri Axle Cab & Chassis Truck - Cummins, 450HP, 6 Speed Allison Rds Automatic

Newly Listed
$161,995 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: 2025 Model: T880...
ConditionNew
Usage36 Miles
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson HMX460
Rear AxleTri Axle
Rear End59,500 lb 3.91 ratio
Stock NumberKF128587
MLS Number13638034
CategoryCab & Chassis Trucks
Last Updated6/11/2025
Location
Fort Lauderdale, FL, US
Sold By

All Roads Trucks

Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump
13 0

2025 Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump

Newly Listed
$235,595 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! Equipped with Engine ...
ConditionNew
Usage1,164 Miles
Duty ClassHeavy Duty Dump Truck
Bed Length16.5
Horse Power450 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson HMX460
Rear AxleTri Axle
Rear End59,500 lb
Stock NumberKF128586
MLS Number13638011
CategoryDump Trucks
Last Updated6/11/2025
Location
Fort Lauderdale, FL, US
Sold By

All Roads Trucks

Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump
13 0

2025 Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump

Newly Listed
$235,595 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! Equipped with Engine ...
ConditionNew
Usage1,172 Miles
Duty ClassHeavy Duty Dump Truck
Bed Length16.5
Horse Power450 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson HMX460
Rear AxleTri Axle
Rear End59,500 lb
Stock NumberKF128585
MLS Number13638009
CategoryDump Trucks
Last Updated6/11/2025
Location
Fort Lauderdale, FL, US
Sold By

All Roads Trucks

Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump
14 0

2025 Kenworth T880 Tri Axle Dump Truck - Cummins 450HP, 6 Speed Allison Rds Automatic, 16.5' Dump

Newly Listed
$235,595 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! Equipped with Engine ...
ConditionNew
Usage1,186 Miles
Duty ClassHeavy Duty Dump Truck
Bed Length16.5
Horse Power450 HP
Engine ModelCummins X15
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson HMX460
Rear AxleTri Axle
Rear End59,500 lb
Stock NumberKF128588
MLS Number13637977
CategoryDump Trucks
Last Updated6/11/2025
Location
Fort Lauderdale, FL, US
Sold By

All Roads Trucks

Freightliner M2 106 Boom / Bucket Truck - 250HP
8 0

2026 Freightliner M2 106 Boom / Bucket Truck - 250HP

Newly Listed
$206,472 USD
FOR SALE! A brand new Freightliner M2106 4x2 upfitted with a Terex XT PRO 60/70-BOC-F-PC forestry bucket/chip truck. This vehicle is powered by a 250 hp Cummins 6.7L diesel motor, and gears...
ConditionNew
Horse Power250 HP
Engine ModelCummins 6.7L D
Drivetrain4x2
Transmission6 Speed
SuspensionSpring
Rear End21,000 lb
Stock NumberTDWK8418
MLS Number13636787
CategoryBoom & Bucket Trucks
Last Updated6/11/2025
Location
Lynchburg, VA, US
Sold By

Custom Truck One Source

Did you find what you were looking for? Yes No