Freightliner 12 Speed Cascadia 126 Sleeper Semi Trucks with Detroit Engines For Sale

2019 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit, 12 Speed Dt12 Amt

$43,000 USD

AUTOMATIC. ELECTRONIC STABILITY CONTROL, BRAKE ASSIST, ADAPTIVE CRUISE CONTROL, LANE DEPARTURE WARNING, TIRE PRESSURE MONITORIING SYSTEM

Condition	Used
Usage	566,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Rear Axle	Tandem Axle
Stock Number	KP8069
MLS Number	14080360
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$52,500 USD

Several Available!, Fresh DOT, Full 128 Point Inspection, 500,000 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...

Condition	Used
Usage	514,395 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5957
MLS Number	13928572
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$49,900 USD

Several Available!, Full 128 Point Inspection, 547,272 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals, Fleet...

Condition	Used
Usage	547,272 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5950
MLS Number	13916446
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$52,000 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...

Condition	Used
Usage	525,063 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5961
MLS Number	13916441
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$48,000 USD

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...

Condition	Used
Usage	565,419 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5958
MLS Number	13916440
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$49,900 USD

Several Available!, 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, Fleet...

Condition	Used
Usage	546,304 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5977
MLS Number	13916438
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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

$49,500 USD

Several Available!, 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, Fleet...

Condition	Used
Usage	560,394 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5968
MLS Number	13916430
Category	Sleeper Semi Trucks
Last Updated	4/14/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$65,000 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced performance, modern technology and driver-focused comfort, making it...

Condition	Used
Usage	512,652 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2626
MLS Number	13944364
Category	Sleeper Semi Trucks
Last Updated	4/4/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$67,900 USD

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its advanced efficiency, modern technology and driver focused comfort, making it...

Condition	Used
Usage	512,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	2266
MLS Number	13707427
Category	Sleeper Semi Trucks
Last Updated	3/27/2026
Location	Phoenix, AZ, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Contact for price

The 2022 Freightliner Cascadia 126 is a Class 8 highway tractor that stands out in the used truck market for its robust performance, aerodynamic efficiency and modern driver comfort, making...

Condition	Used
Usage	512,354 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2626
MLS Number	14070071
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

$99,900 USD

The 2019 Freightliner Cascadia 126 is a highly regarded used Class 8 highway tractor that stands out for its powerful drivetrains, aerodynamic design, driver comfort, and advanced safety...

Condition	Used
Usage	293,452 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	23483
MLS Number	13703265
Category	Sleeper Semi Trucks
Last Updated	3/24/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

(866) 530-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP, 12 Speed Dt12 Automatic

$72,995 USD

DETROIT DD15 / DETROIT DT12 AUTOMATIC / FINANCING AVAILABLE / FLEET MAINTAINED 2021 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, 455 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 369,598...

Condition	Used
Usage	369,598 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	8028
MLS Number	13436849
Category	Sleeper Semi Trucks
Last Updated	3/19/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 321-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$69,900 USD

SPECIAL!!! - WAS $75,900 NOW $ 69,900, SPECIAL, MUST GO,

Condition	Used
Usage	13,298 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	1690
MLS Number	14043665
Category	Sleeper Semi Trucks
Last Updated	3/17/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(866) 530-___ SHOW
NUMBERCall Seller

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

$39,995 USD

2020 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 704,148 MILES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	704,148 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	9648
MLS Number	14142907
Category	Sleeper Semi Trucks
Last Updated	2/27/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 748-___ SHOW
NUMBERCall Seller

2023 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit

$97,900 USD

274313 Miles, 9665 Hours, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, 12 Speed Endurant AMT Transmission, Drive: 6x4, Overdrive, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper,...

Condition	Used
Usage	9,665 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Emission Rating	USA Tier 4 Final
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	UH2061
MLS Number	13068305
Category	Sleeper Semi Trucks
Last Updated	2/9/2026
Location	Elgin, IL, US
Sold By	TFS Recovery, Inc.

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$42,900 USD

DD15 Detroit, 505 HP, DT12 Automated, 2.85 Ratio, Diff Locks, 12350 Fronts, 40000 Rears, Jakes, Double Bunk Sleeper, Bluetooth, Power Windows/Locks/Mirrors, Dual Air Ride Seats, Collision...

Condition	Used
Usage	658,600 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	MH6762
MLS Number	13463914
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(833) 490-___ SHOW
NUMBERCall Seller

2024 Freightliner Cascadia 126 * FRESH IN, 4YR 600K Remaining Factory Warranty, 9/28/27 505HP Tri Pac Apu

$96,950 USD

For sale is an unbeatable 2024 Freightliner Cascadia, powered by a robust 505HP Detroit DD15 Engine with 1750 Torque and a smooth DT12 Automatic Transmission, paired with a 2.64 Rear Ratio...

Warranty

Condition	Used
Usage	6,678 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UVG5059
MLS Number	13871092
Category	Sleeper Semi Trucks
Last Updated	11/25/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 490-___ SHOW
NUMBERCall Seller

Tri State Truck Center - Springfield, MO

2021 Freightliner Cascadia 126 Sleeper Semi Truck- 72in Condo , Double Bunk ,455HP , Carrier APU

$59,950 USD

For sale: 2021 Freightliner Cascadia with 502,000 miles, powered by a reliable Detroit engine and DT12 automatic transmission. Features a spacious 72-inch condo sleeper with double bunk,...

Warranty

Condition	Used
Usage	10,393 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Double Bunk
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	UMJ9351
MLS Number	13756361
Category	Sleeper Semi Trucks
Last Updated	11/25/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO