1. Home
  2. Listings
  3. Trucks
  4. Sleeper Semi Trucks

12 Speed Sleeper Semi Trucks with Detroit Engines For Sale

Close
Your Current Search
Industry
Trucks
Category
Sleeper Semi Trucks
Transmission Speeds
12 Speed
Engine Manufacturer
Detroit
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
Equipment Type
Trucks (263)
Category
Sleeper Semi Trucks (263)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
Rear Axle
Single (1)Tandem (253)
Transmission Type
Transmission Speed
12 Speed (263)
Engine Manufacturer
Detroit (263)
Sleeper Type
Exterior Color
Suspension Type
Fuel Type
Diesel (239)
Mileage
-
Horsepower
-
Inspection Report
Yes (0)
Warranty
Price
-
Country
State / Region
Select a country to view available states.
Seller Type
Dealerships (263)
Market Type
For Sale (263)

Shop Semi Trucks by Brand

Quick Filters

Showing 251 - 263 of 263 Sleeper Semi Truck Listings

251 - 263 of 263 listings
251 - 263 of 263 listings
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$53,000 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 528,189 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage528,189 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5967
MLS Number13916442
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$53,300 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 525,063 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage525,063 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5961
MLS Number13916441
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$51,600 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 546,304 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage546,304 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5977
MLS Number13916438
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$49,500 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 573,043 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage573,043 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5953
MLS Number13916432
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$49,800 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 570,878 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage570,878 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5973
MLS Number13916428
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Recently Updated
$50,200 USD
Several Available!, Fresh DOT, Full 128 Point Inspection, 565,888 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage565,888 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5965
MLS Number13916425
CategorySleeper Semi Trucks
Last Updated1/8/2026
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 550,311 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage550,311 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5974
MLS Number13916445
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 567,215 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage567,215 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5966
MLS Number13916443
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 565,419 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage565,419 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5958
MLS Number13916440
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 507,936 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage507,936 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5976
MLS Number13916437
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 507,719 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage507,719 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5944
MLS Number13916431
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price
Several Available!, Fresh DOT, Full 128 Point Inspection, 559,891 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...
ConditionUsed
Usage559,891 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberLY5968
MLS Number13916430
CategorySleeper Semi Trucks
Last Updated10/31/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Freightliner Cascadia 125 Sleeper Semi Truck - Detroit, 12 Speed Dt12 Amt

2018 Freightliner Cascadia 125 Sleeper Semi Truck - Detroit, 12 Speed Dt12 Amt

Contact for price
703,116 Miles, Detroit DD15, DT12 Automated,
ConditionUsed
Usage703,116 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelDetroit DD15
Transmission12 Speed Detroit DT12 Automated
Rear AxleTandem Axle
MLS Number13644781
CategorySleeper Semi Trucks
Last Updated10/23/2025
Location
Monroe, GA, US
Sold By
AAA Trucks LLC
(844) 216-___  SHOW
NUMBERCall Seller
Email Seller
Save
AAA Trucks LLC
Related searches
Day Cab Trucks
Save Search
Email Alert
What's Save Search and Email Alert?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for? Yes No
Got a sleeper semi truck to sell? In minutes, you can create an online listing for your sleeper semi truck and advertise it to thousands of buyers.
Start selling today