New Heavy Duty 6x4 Sleeper Semi Trucks with Detroit Engines For Sale

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1-18 of 18 results
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Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
7 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Newly Listed
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This Western Star 49X Sleeper is a rugged, top-tier heavy-duty truck designed for long hauls and demanding jobs. This model features a sleek maroon exterior accented with bold silver stripes...
ConditionNew
Usage1,200 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAirLiner
Rear AxleTandem Axle
Stock NumberWS4883
MLS Number13250587
CategorySleeper Semi Trucks
Last Updated11/22/2024
Location
Houlton, ME, US
Sold By

Freightliner of Maine

Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP
40 0

2025 Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

Newly Listed
Call for price
New Western Star 57X sleeper. Exact same truck as the Cascadia but with more classic styling and upgraded interior and dash. This is a super nice sleeper with the same known reliability...
ConditionNew
Usage630 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 2.85 ratio
Stock Number258298
MLS Number13250295
CategorySleeper Semi Trucks
Last Updated11/22/2024
Location
Tampa, FL, US
Sold By

Southport Truck Group

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
13 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Recently Updated
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1266 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Spring Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 36, Tires: 11R24.5,...
ConditionNew
Usage1,266 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
Sleeper Size36"
SuspensionSpring
Rear AxleTandem Axle
Rear End46,000 lb 4.30 ratio
Stock NumberWS4898
MLS Number13218645
CategorySleeper Semi Trucks
Last Updated11/22/2024
Location
Fort Kent, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
12 0

2025 Western Star 49X Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Recently Updated
Call for price
914 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Spring Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 36, Tires: 11R24.5,...
ConditionNew
Usage914 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
Sleeper Size36"
SuspensionSpring
Rear AxleTandem Axle
Rear End46,000 lb 4.30 ratio
Stock NumberWS4863
MLS Number13056867
CategorySleeper Semi Trucks
Last Updated11/22/2024
Location
Fort Kent, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Detroit 600HP, 18 Speed Manual
15 0

2025 Western Star 49X Sleeper Semi Truck - Detroit 600HP, 18 Speed Manual

Recently Updated
Call for price
1384 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Spring Suspension, Sleeper Type: Flat Top Sleeper, Sleeper Size: 36, Tires: 11R24.5,...
ConditionNew
Usage1,384 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
Sleeper Size36"
SuspensionSpring
Rear AxleTandem Axle
Rear End46,000 lb 4.30 ratio
Stock NumberWS4852
MLS Number13038859
CategorySleeper Semi Trucks
Last Updated11/22/2024
Location
Fort Kent, ME, US
Sold By

Freightliner of Maine

Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP
38 0

2025 Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

Recently Updated
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New Western Star 57x, DD15 DT12 transmission, 505 hp, upgraded interior with all LCD screens for gauges, super nice truck stock: 252459, transmodel: DT12-1750-OH, engine type: DD15,...
ConditionNew
Usage2,806 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 2.85 ratio
Stock Number252459
MLS Number13133475
CategorySleeper Semi Trucks
Last Updated11/21/2024
Location
Tampa, FL, US
Sold By

Southport Truck Group

Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 505HP, Automatic
39 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 505HP, Automatic

Recently Updated
$155,998 USD
See our New 2025 Freightliner Cascadia 126 sleeper for sale at Freightliner of Miami in Hialeah Gardens, Florida! This truck was built with you in mind with a white exterior, Black Laredo...
ConditionNew
Usage1,568 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
TransmissionAutomatic
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Stock NumberSSVX1140
MLS Number12991524
CategorySleeper Semi Trucks
Last Updated11/20/2024
Location
Hialeah Gardens, FL, US
Sold By

Freightliner of Miami

Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 18 Speed Dt12 Amt
14 0

2024 Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 18 Speed Dt12 Amt

$199,500 USD
2100 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, 18 Speed DT12 AMT Transmission, Drive: 6x4, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Tandem Rear Axles
ConditionNew
Usage2,100 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission18 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
Rear AxleTandem Axle
Stock Number107877
MLS Number13178592
CategorySleeper Semi Trucks
Last Updated10/25/2024
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Western Star 49X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 13 Speed Manual
12 0

2024 Western Star 49X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 13 Speed Manual

$171,500 USD
1040 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, 13 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Tires:...
ConditionNew
Usage1,040 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission13 Speed Manual
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberWS4761
MLS Number12442510
CategorySleeper Semi Trucks
Last Updated10/31/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
13 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
6 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheels: Aluminum, Wheel Base: 250,...
ConditionNew
Usage6 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4882
MLS Number13142937
CategorySleeper Semi Trucks
Last Updated9/28/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
12 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
7 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheels: Aluminum, Wheel Base: 250,...
ConditionNew
Usage7 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4874
MLS Number13138144
CategorySleeper Semi Trucks
Last Updated9/28/2024
Location
Fort Kent, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
12 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
8 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheel Base: 250, Tandem Rear Axles,...
ConditionNew
Usage8 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4875
MLS Number13051473
CategorySleeper Semi Trucks
Last Updated9/26/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
11 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
984 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheels: Aluminum, Wheel Base: 250,...
ConditionNew
Usage984 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4880
MLS Number13117974
CategorySleeper Semi Trucks
Last Updated9/17/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
12 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
1281 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheel Base: 250, Tandem Rear Axles...
ConditionNew
Usage1,281 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4872
MLS Number13051647
CategorySleeper Semi Trucks
Last Updated8/22/2024
Location
Fort Kent, ME, US
Sold By

Freightliner of Maine

Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP, Automatic
17 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP, Automatic

Call for price
2811 Miles, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, Automatic Transmission, Drive: 6x4, Air Ride Suspension, Tandem Rear Axles, Rear Axle Weight: 46000 lb
ConditionNew
Usage2,811 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
TransmissionAutomatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock Number41430
MLS Number13007205
CategorySleeper Semi Trucks
Last Updated8/21/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP
17 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP

Call for price
2718 Miles, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Wheels: All Aluminum, Tandem Rear Axles, Rear Axle Weight:...
ConditionNew
Usage2,718 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock Number41429
MLS Number13007013
CategorySleeper Semi Trucks
Last Updated8/21/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual
15 0

2025 Western Star 49X Sleeper Semi Truck - Flat Top Sleeper, Detroit 600HP, 18 Speed Manual

Call for price
1085 Miles, Engine: DETROIT DD16, 600 HP, Fuel Type: Diesel, 18 Speed Manual Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Flat Top Sleeper, Wheel Base: 250, Tandem Rear Axles...
ConditionNew
Usage1,085 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission18 Speed Manual
Sleeper TypeFlat Top Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End46,000 lb
Stock NumberWS4873
MLS Number13051483
CategorySleeper Semi Trucks
Last Updated8/21/2024
Location
Bangor, ME, US
Sold By

Freightliner of Maine

Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP
15 0

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

$183,900 USD
Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, Drive: 6x4, AirLiner Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Tires: 295/75R22.5, Wheels: Aluminum, Wheel Base: 229,...
ConditionNew
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 2.41 ratio
Stock Number6FLVK7162
MLS Number12902972
CategorySleeper Semi Trucks
Last Updated7/23/2024
Location
Superior, WI, US
Sold By

Boyer Trucks

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