6 Speed Trucks with Cummins Engines For Sale

7 0

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

$155,974 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

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2500 Gallon
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Capacity	2500 Gallons
Stock Number	1M2MDBAB4SS075904
MLS Number	13642840
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

8 0

IN STOCK - 2025 Mack MD6 Sewer / Septic Truck - Iron-Vac 2100 Gallon Polished Aluminum Tank Tank Body

$159,029 USD

THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD6 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 26k GVWR 2100 Gallon Polished Aluminum Tank (5 YR...

Warranty

Condition	New
Duty Class	Medium Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2100 Gallon Polished Aluminum Tank
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2100 Gallons
MLS Number	13703507
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

8 0

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

$155,019 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

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2500 Gallon
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2500 Gallons
Stock Number	1M2MDBABXSS075907
MLS Number	13642852
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

3 0

IN STOCK - 2026 Peterbilt 536 Sewer / Septic Truck - Iron-Vac 2100 Gallon Steel Tank Tank Body

$152,030 USD

THIS UNIT IS CURRENTLY IN STOCK 2026 Peterbilt 536 (2 YR Manufacturer Warranty) Cummins PX7 (300HP) 2500 Allison RDS Automatic Transmission 26k GVWR 2100 Gallon 1/4" Steel Tank (5 YR...

Warranty

Condition	New
Duty Class	Medium Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2100 Gallon Steel Tank
Horse Power	300 HP
Engine Model	Cummins PX7
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2100 Gallons
MLS Number	13955847
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

8 0

IN STOCK - 2026 Peterbilt 536 Sewer / Septic Truck - Iron-Vac 2100 Gallon Aluminum Tank Tank Body

$159,269 USD

THIS UNIT IS CURRENTLY IN STOCK 2026 Peterbilt 536 (2 YR Manufacturer Warranty) Cummins PX7 (300HP) 2500 Allison RDS Automatic Transmission 26k GVWR 2100 Gallon 1/4" Aluminum Tank (5 YR...

Warranty

Condition	New
Duty Class	Medium Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2100 Gallon Aluminum Tank
Horse Power	300 HP
Engine Model	Cummins PX7
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2100 Gallons
MLS Number	13955861
Category	Sewer / Septic Trucks
Last Updated	10/30/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

(833) 300-___ SHOW
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38 1

2012 Freightliner M2 106 Single Axle Mixer / Ready Mix / Concrete Truck - Cummins, 250HP, 6 Speed Allison Rds Automatic

Contact for price

Installed optionALUMINUM BOX, Tanker typeBITUME, Tank makeMAULDIN, Tank modelMPS2000, Tank dimension12 ' _ " L X 7 ' 3 " W X 5,4" ' H, Tank capacity2000 GALS, Tank serial...

Condition	Used
Usage	11,910 Hours
Duty Class	Heavy Duty Mixer / Ready Mix / Concrete Truck
Horse Power	250 HP
Engine Model	Cummins ISB
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	AirLiner
Rear Axle	Single Axle
Rear End	21,000 lb 6.14 ratio
Stock Number	C-37054
MLS Number	13955453
Category	Mixer / Ready Mix / Concrete Trucks
Last Updated	10/30/2025
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(855) 653-___ SHOW
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15 0

2024 RAM 5500 16 ft Box Truck - 360HP, 6 Speed Autoshift Automatic, Roll up Door

$83,500 USD

2024 Ram 5500 16 Ft Box Truck, 6.7L Cummins Engine 360hp, 6 Speed Aisin Automatic Transmission, Manual Transfer Case, 4X4, Auto Hubs, Dually, 19,500 Lbs. GVWR, 7,250 Lb. Front Axle, 13,500...

Condition	Used
Usage	32 Miles
Duty Class	Medium Duty Box Truck
Box Length	16 ft.
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Autoshift Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb
Door Type	Roll up
Stock Number	17776W
MLS Number	13955393
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	11/1/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
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19 0

2024 Isuzu FTR 26 ft Box Truck - 260HP, 6 Speed Automatic, Roll up Door, Liftgate

$98,500 USD

2024 Isuzu FTR 26' Box Truck, 6.7L Cummins Turbo Diesel, Automatic Transmission, 260HP, 7,118 Miles, 296 Engine Hours, 25,950lb GVWR (No CDL Required), 12,000lb Front Axle, 19,000lb Rear...

Condition	Used
Usage	7,118 Miles
Duty Class	Medium Duty Box Truck
Box Length	26 ft.
Horse Power	260 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	19,000 lb
Door Type	Roll up
Liftgate	Yes
Stock Number	17763W
MLS Number	13955380
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	11/1/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(855) 804-___ SHOW
NUMBERCall Seller

13 0

2023 Kenworth W900 Tri Axle Dump Truck - Cummins 525HP, 6 Speed Allison Rds Automatic, 17' Dump

$209,900 USD

2023 Kenworth W900 Extend Cab --- Tri Axle, X15 Cummins 525 HP, Allison Automatic 6 Speed, 4.30 Ratio, 20,000 Front Axle, 46,000 Rear Axle, 239" Wheelbase, 22' 3" Bridge, Air Ride AG460,...

Condition	Used
Usage	106,204 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Air-Flo
Bed Length	17 ft.
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	AG 460
Rear Axle	Tri Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	257133
MLS Number	13955253
Category	Dump Trucks
Last Updated	11/6/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

11 1

2016 International DuraStar 4300 Single Axle Cab & Chassis Truck - Cummins, 250HP, 6 Speed Allison Rds Automatic

$26,900 USD

2016 International Durastar 4300 Single Axle Cab Chassis, Spring Suspension, Cummins ISB6.7 250HP Engine, Automatic 6 Spd Allison 2200 RDS Transmission, 25,999 GVW, 10,000# Front Axle,...

Condition	Used
Usage	257,928 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	250 HP
Engine Model	Cummins ISB6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	19,000 lb 5.57 ratio
Stock Number	16IH133
MLS Number	13528725
Category	Cab & Chassis Trucks
Last Updated	10/30/2025
Location	Des Moines, IA, US
Sold By	Vander Haag's Inc.

(844) 307-___ SHOW
NUMBERCall Seller

7 0

2022 International MV607 Truck - Cummins, 240HP, 6 Speed

$55,000 USD

1 2-YR Factory-Backed Engine Aftertreatment Warranty + Extended Vehicle Coverage Towing AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of 700+ Locations. 29000 GVW

Inspection Report

Condition	Used
Usage	65,654 Miles
Duty Class	Heavy Duty Truck
Horse Power	240 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Air Ride
Rear End	19,000 lb 5.57 ratio
Liftgate	Yes
Stock Number	502159
MLS Number	13501949
Category	Other Trucks
Last Updated	12/18/2025
Location	West Sacramento, CA, US
Sold By	International Motors, LLC

(833) 478-___ SHOW
NUMBERCall Seller

11 0

2018 Freightliner M2 106 26 ft Box Truck - 220HP, 6 Speed Automatic, Roll up Door, Liftgate

Contact for price

2018 FREIGHTLINER M2 BOX TRUCK. CUMMINS B6.7, ALLISON AUTOMATIC, MORGAN 26'102"97" BOX WITH FRP INTERIOR, ALUMINUM ROOF, LED DOMELIGHTS, 2 ROWS E-TRACK, SCUFF ON SIDES AND FRONT, ROLL DOOR...

Condition	Used
Usage	158,684 Miles
Duty Class	Heavy Duty Box Truck
Box Length	26 ft.
Horse Power	220 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb
Door Type	Roll up
Liftgate	Yes
Stock Number	6886C
MLS Number	13820608
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	11/11/2025
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

18 1

2019 Freightliner M2 106 Single Axle Cab & Chassis Truck - Cummins, 300HP, 6 Speed Allison Hs Automatic

$29,900 USD

2019 Freightliner M2-106, Cummins ISL 300HP Engine, Automatic 6 Spd Allison 3000 HS Transmission, Air Ride Suspension, 33,000 GVW, 12,000# F 12-3n Front Axle, 21,000# Meritor MS2114X Rear...

Condition	Used
Usage	8,953 Hours
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Cummins ISL
Drivetrain	4x2
Transmission	6 Speed Allison HS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 4.63 ratio
Stock Number	19WH049
MLS Number	12986119
Category	Cab & Chassis Trucks
Last Updated	10/29/2025
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

24 0

2024 RAM 5500 Flatbed Truck - 360HP, 6 Speed Automatic

$79,500 USD

2024 Ram 5500HD Flatbed, Diesel, Auto, 4x4 Powertrain Chassis: 54 miles, Cummins B6.7, 360HP/850lbs-ft, 6-Speed AISIN AS69RC HD Transmission | 4x4, Exhaust Brake | Tow/Haul Mode, Hydraulic...

Condition	Used
Usage	54 Miles
Duty Class	Medium Duty Flatbed Truck
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb
Stock Number	T17775M
MLS Number	13951243
Category	Flatbed Trucks
Last Updated	10/28/2025
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

26 0

2024 RAM 5500 12 ft Flatbed Truck - 360HP, 6 Speed Automatic

$79,500 USD

2024 Ram 5500HD Flatbed, Diesel, Auto, 4x4 Powertrain Chassis: 162 miles, Cummins B6.7, 360HP/850lbs-ft, 6-Speed AISIN AS69RC HD Transmission | 4x4, Exhaust Brake | Tow/Haul Mode, Hydraulic...

Condition	Used
Usage	162 Miles
Duty Class	Medium Duty Flatbed Truck
Bed Length	12 ft.
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb
Stock Number	T17774M
MLS Number	13951238
Category	Flatbed Trucks
Last Updated	10/28/2025
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

24 0

2026 Freightliner M2 106 Single Axle Dump Truck - Cummins 330HP, 6 Speed Allison Rds Automatic, 12' Dump

$129,500 USD

2026 Freightliner M2-106 Plus 12' Dump Truck Powertrain Chassis: 59 miles, 8.9L Cummins 330hp/1,000ft/lbs Torque, Exhaust Brake, Allison 3500RDS 6 Speed Automatic Transmission, Air Brakes,...

Condition	Used
Usage	59 Miles
Duty Class	Medium Duty Dump Truck
Upfit Make	Godwin
Bed Length	12 ft.
Horse Power	330 HP
Engine Model	Cummins L9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb
Stock Number	T17750M
MLS Number	13951228
Category	Dump Trucks
Last Updated	10/28/2025
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(855) 653-___ SHOW
NUMBERCall Seller

23 0

2020 RAM 4500 Box Truck - 360HP, 6 Speed Automatic, Liftgate

$74,500 USD

2020 Ram 4500 14 Ft Box Truck, 6.7L Cummins Engine 360hp, 6 Speed Aisin Automatic Transmission, 4x4, Four Wheel Drive, Manual Transfer Case, Auto Hubs, Dually, 16,500 Lbs. GVWR, 7,000 Lb....

Condition	Used
Usage	1,808 Miles
Duty Class	Medium Duty Box Truck
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Liftgate	Yes
Stock Number	T17562W
MLS Number	13951175
Category	Delivery / Moving / Straight / Box Trucks
Last Updated	11/2/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(772) 409-___ SHOW
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28 0

2026 Kenworth T880 Tri Axle Dump Truck - Cummins 500HP, 6 Speed Allison Rds Automatic, 16' Dump

Contact for price

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...

Condition	New
Usage	112 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ox Bodies
Bed Length	16 ft.
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	59,200 lb 4.56 ratio
Stock Number	KF205910
MLS Number	13756012
Category	Dump Trucks
Last Updated	10/28/2025
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks

(844) 819-___ SHOW
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17 0

2018 International WorkStar 7400 Dump Truck

$130,500 USD

2018 INTERNATIONAL WORKSTAR 7400 Dump Truck, ***COUNTY OWNED***, ***Low Miles***, 26,000 original miles, 350HP, Engine Manufacturer- Cummins, Engine Model- ISL9 engine, Engine Brake,...

Condition	Used
Usage	26,000 Miles
Duty Class	Heavy Duty Dump Truck
Engine Model	Cummins ISL9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Rear End	40,000 lb
MLS Number	13949999
Category	Dump Trucks
Last Updated	10/27/2025
Location	Southeast United States, US
Sold By	Carolina Used Machinery

7 1

2016 International DuraStar 4300 16 ft Landscape Truck - 250HP, 6 Speed Automatic

$74,900 USD

Customized 2016 International 4300 with a New 16' Dump Body, 13"-Fold-Down Sides. This truck was custom built by our fabrication department. At Vander Haag's, we are your industry expert in...

Condition	Used
Duty Class	Medium Duty Landscape Truck
Bed Length	16 ft.
Horse Power	250 HP
Engine Model	Cummins ISB6.7
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	19,000 lb 5.29 ratio
Stock Number	16SADUMP
MLS Number	13318771
Category	Landscape Trucks
Last Updated	10/25/2025
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

7 1

2016 International DuraStar 4300 16 ft Landscape Truck - 250HP, 6 Speed Automatic

$74,900 USD

Customized 2016 International 4300 with a New 16' Dump Body, 13"-Fold-Down Sides. This truck was custom built by our fabrication department. At Vander Haag's, we are your industry expert in...

Condition	Used
Duty Class	Medium Duty Landscape Truck
Bed Length	16 ft.
Horse Power	250 HP
Engine Model	Cummins ISB6.7
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	19,000 lb 5.29 ratio
Stock Number	16SADUMP
MLS Number	13318770
Category	Landscape Trucks
Last Updated	10/25/2025
Location	Winimac, IN, US
Sold By	Vander Haag's Inc.

24 0

2024 RAM 5500 Single Axle Dump Truck - Cummins 360HP, 6 Speed Automatic, 11' Dump

$78,500 USD

2024 Ram 5500HD Dump Truck, 6.7L Cummins Engine 360HP, 6 Speed Automatic Transmission, Four Wheel Drive, Exhaust Brake, Manual Transfer Case, Auto Hubs, 19,500lbs GVWR, 7,250lbs Front Axle,...

Condition	Used
Usage	8,693 Miles
Duty Class	Medium Duty Dump Truck
Upfit Make	Knapheide
Bed Length	11 ft.
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb
Stock Number	T16812M
MLS Number	13916592
Category	Dump Trucks
Last Updated	10/23/2025
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(833) 801-___ SHOW
NUMBERCall Seller

5 0

2010 Freightliner M2 112 Single Axle Dump Truck - Cummins 260HP, 6 Speed Manual

$28,000 USD

NICE TRUCK, RUNS EXCELLENT, GOOD CAB, NICE BED, AIR BRAKES, AIR SEAT!,

Condition	Used
Usage	191,665 Miles
Duty Class	Heavy Duty Dump Truck
Horse Power	260 HP
Engine Model	Cummins ISC
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb
Stock Number	10M21914DRSADUMP
MLS Number	13916586
Category	Dump Trucks
Last Updated	11/10/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(410) 465-___ SHOW
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8 0

2026 International MV Single Axle Rollback Tow Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

Contact for price

Century 22’ Steel LCG12 (12K Deck) Rollback, 4K AutoGrip Wheel Lift, 8K Deck Winch, ITD SP9000 (Side Puller) with 91” Wide Light Box/Dress Up Panels, Lodar Wireless Control for both Winches,...

Condition	New
Usage	1 Miles
Duty Class	Medium Duty Rollback Tow Truck
Horse Power	300 HP
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Stock Number	C1735-R1383
MLS Number	13916580
Category	Rollback Tow Trucks
Last Updated	10/23/2025
Location	Ellicott City, MD, US
Sold By	All Roads Trucks