New 6 Speed Automatic Trucks For Sale

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2026 Kenworth T880 Quad Axle Dump Truck - Cummins 565HP, 6 Speed Allison Rds Automatic, 19' Dump

$262,900 USD

2026 Kenworth T880 --- Quad Axle, X15 Cummins 565 HP, Allison Automatic 6 Speed, 4.30 Ratio, 18,740 Front Axle, 46,000 Rear Axle, 260" Wheelbase, 24' 2" Bridge, Hendrickson Haulmaax, Double...

Quantity	4
Condition	New
Usage	16 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	HERITAGE
Bed Length	19 ft.
Horse Power	565 HP
Engine Model	Cummins X15
Drivetrain	10x4
Transmission	6 Speed Allison RDS Automatic
Suspension	HaulMaax
Rear Axle	Quad Axle
Rear End	46,000 lb 4.30 ratio
Stock Number	213923
MLS Number	13637564
Category	Dump Trucks
Last Updated	10/16/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

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

$177,607 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" Polished Aluminum Tank...

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 PX7
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2100 Gallons
MLS Number	13885387
Category	Sewer / Septic Trucks
Last Updated	10/15/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

(561) 882-___ SHOW
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2026 Kenworth T380 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T380...

Condition	New
Usage	160 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Reyco
Rear Axle	Single Axle
Rear End	21,000 lb 4.89 ratio
Stock Number	KF193160
MLS Number	13781642
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Riviera Beach, FL, US
Sold By	All Roads Trucks

2026 Kenworth T880 Tandem Axle Cab & Chassis Truck - Cummins, 525HP, 6 Speed Allison Rds Automatic

$188,995 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	544 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.56 ratio
Stock Number	KN223154
MLS Number	13765776
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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	596 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192118
MLS Number	13693797
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Rosedale, MD, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	4 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192115
MLS Number	13693432
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Naples, FL, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	245 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192113
MLS Number	13693430
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Naples, FL, US
Sold By	All Roads Trucks

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2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	1,699 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192112
MLS Number	13603518
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

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2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	1,906 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192111
MLS Number	13537605
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

2026 Kenworth T880 Tandem Axle Cab & Chassis Truck - Cummins, 525HP, 6 Speed Allison Rds Automatic

$188,995 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	11 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	525 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson PRIMAAX
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.56 ratio
Stock Number	KN223155
MLS Number	13765777
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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	8 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192119
MLS Number	13712743
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Rosedale, MD, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	11 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192117
MLS Number	13693436
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Naples, FL, US
Sold By	All Roads Trucks

2026 Kenworth T280 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$99,995 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: 2026, Model: T280...

Condition	New
Usage	11 Miles
Duty Class	Medium Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	KN192116
MLS Number	13693435
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Naples, FL, US
Sold By	All Roads Trucks

2026 Kenworth T380 Single Axle Cab & Chassis Truck - Paccar, 360HP, 6 Speed Allison Rds Automatic

$109,995 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
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	360 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Reyco
Rear Axle	Single Axle
Rear End	23,000 lb 5.57 ratio
Stock Number	KN192143
MLS Number	13435572
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Landover, MD, US
Sold By	All Roads Trucks

2026 Kenworth T380 Single Axle Cab & Chassis Truck - Paccar, 360HP, 6 Speed Allison Rds Automatic

$109,995 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
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	360 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Reyco
Rear Axle	Single Axle
Rear End	23,000 lb 5.57 ratio
Stock Number	KN192141
MLS Number	13423595
Category	Cab & Chassis Trucks
Last Updated	10/15/2025
Location	Landover, MD, US
Sold By	All Roads Trucks

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IN STOCK - 2024 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Tank Body

$148,118 USD

THIS UNIT IS CURRENTLY IN STOCK (PRICE REDUCED) 2024 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 RDS Allison Automatic Transmission 33k GVWR 2500 Gallon 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
MLS Number	13879362
Category	Sewer / Septic Trucks
Last Updated	11/20/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

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

$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	5
Condition	New
Usage	8 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	216085
MLS Number	13811085
Category	Dump Trucks
Last Updated	10/11/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

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2024 Hino 338 Single Axle Sewer / Septic Truck - 220HP, 6 Speed Automatic

Contact for price

NEW 2024 HINO L6 SEPTIC TANK TRUCK, 2024 BUILT TO SUIT. CALL for PRICING, EngineHino 6 260HP 6, Engine Size8L, FuelDiesel, 1 Tank, 50 Gal, TransmissionAllison Auto Automatic 6 Spd,...

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Horse Power	220 HP
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Stock Number	Hino Tank_septic
MLS Number	13869433
Category	Sewer / Septic Trucks
Last Updated	10/7/2025
Location	Shrewsbury, NJ, US
Sold By	Schwartz Truck Center

(855) 906-___ SHOW
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2024 International MV Single Axle Hooklift Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

$155,500 USD

2024 INTERNATIONAL MV607 SBA 2-AXLE **NO CDL REQUIRED** **NO FET**, Cummins 6.7L (300 HP), Exhaust Brake, Allison 3000RDS 6-Speed Automatic Transmission, Meritor 21,000# Single Drive Rear...

Condition	New
Usage	130 Miles
Duty Class	Medium Duty Hooklift Truck
Horse Power	300 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.86 ratio
Stock Number	E17849
MLS Number	12592923
Category	Hooklift Trucks
Last Updated	10/3/2025
Location	Healdsburg, CA, US
Sold By	Opperman & Son, Inc.

2026 Kenworth T880 Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

$234,095 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	585 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	59,500 lb 4.56 ratio
Stock Number	KN205838
MLS Number	13814013
Category	Dump Trucks
Last Updated	9/30/2025
Location	Rosedale, MD, US
Sold By	All Roads Trucks

2025 Peterbilt 548 Tandem Axle Cab & Chassis Truck - Paccar, 360HP, 6 Speed Allison Rds Automatic

Contact for price

CHASSIS ON THE GROUND!,

Condition	New
Usage	544 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	360 HP
Engine Model	Paccar PX9
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson
Rear Axle	Tandem Axle
Rear End	5.57 ratio
Stock Number	276544
MLS Number	13850411
Category	Cab & Chassis Trucks
Last Updated	9/26/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2025 Peterbilt 537 Cab & Chassis Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

Contact for price

CHASSIS ON THE GROUND!,

Condition	New
Usage	520 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	350 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Trac
Rear End	5.57 ratio
Stock Number	276545
MLS Number	13850312
Category	Cab & Chassis Trucks
Last Updated	9/26/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2025 Peterbilt 548 Single Axle Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

Contact for price

CHASSIS ON THE GROUND!,

Condition	New
Usage	593 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Reyco
Rear Axle	Single Axle
Rear End	5.38 ratio
Stock Number	276651
MLS Number	13850289
Category	Cab & Chassis Trucks
Last Updated	9/26/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

2025 Peterbilt 548 Cab & Chassis Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

Contact for price

CHASSIS ON THE GROUND!,

Condition	New
Usage	569 Miles
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	300 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Reyco
Rear End	5.38 ratio
Stock Number	276649
MLS Number	13850285
Category	Cab & Chassis Trucks
Last Updated	9/26/2025
Location	Millstone Township, NJ, US
Sold By	Hunter Truck