Used Freightliner 12 Speed 6x4 Cascadia 126 Sleeper Semi Trucks For Sale

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2023 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 505HP, 12 Speed Automatic

Contact for price

### Why Buy this 2023 FREIGHTLINER CASCADIA 126 Truck? Upgrade your fleet with this powerful and efficient 2023 Freightliner Cascadia 126. This white conventional sleeper is engineered for...

Condition	Used
Usage	9,238 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	C-37956
MLS Number	14624481
Category	Sleeper Semi Trucks
Last Updated	9/30/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(855) 489-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

$80,000 USD

Super Clean!, Cummins 500hp, Endurant 12 speed automated, 72" Raised Roof, Collision Mitigation, Disc brakes,

Condition	Used
Usage	544,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
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
Stock Number	2330
MLS Number	14624458
Category	Sleeper Semi Trucks
Last Updated	9/24/2026
Location	Rhome, TX, US
Sold By	Jordan Truck Sales of Texas, LLC

(833) 478-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

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Late Model CASCADIAS arriving Daily! DD15 / DT12 / Electric APU / Inverter / FLOWBELOW Aero Package 3 to choose from. Call today,

Quantity	3
Condition	Used
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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	7541
MLS Number	14601447
Category	Sleeper Semi Trucks
Last Updated	10/1/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(833) 478-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price

Late Model CASCADIAS arriving Daily! DD15 / DT12 / Electric APU / Inverter / FLOWBELOW Aero Package 3 to choose from. Call today,

Quantity	3
Condition	Used
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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	7539
MLS Number	14601446
Category	Sleeper Semi Trucks
Last Updated	9/27/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(833) 478-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

Contact for price

Late Model CASCADIAS arriving Daily! DD15 / DT12 / Electric APU / Inverter / FLOWBELOW Aero Package 3 to choose from. Call today,

Quantity	3
Condition	Used
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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	7540
MLS Number	14601445
Category	Sleeper Semi Trucks
Last Updated	9/24/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

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

$77,995 USD

2021 FREIGHTLINER CASCADIA 126, DETROIT ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 418,354 MILES, APU, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE...

Condition	Used
Usage	418,354 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	4030
MLS Number	14547076
Category	Sleeper Semi Trucks
Last Updated	9/24/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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

$61,200 USD

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 Maintained, Dual Air...

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	9/24/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(855) 910-___ SHOW
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2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$73,000 USD

N.A.P. New Style Cascadia, Air Release 5th Wheel, Sliding 5th Wheel, Automatic Transmission, Espar Bunk Heater, 1500-Watt invertor, Refrigerator, TV Mounting Bracket, Opti Idle, Detroit...

Condition	Used
Usage	483,892 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	3780
MLS Number	14617326
Category	Sleeper Semi Trucks
Last Updated	9/29/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 455HP, Automatic

$75,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15, 505 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 579,356 MILES, APU FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	579,356 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
Stock Number	5789
MLS Number	14573787
Category	Sleeper Semi Trucks
Last Updated	9/20/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(855) 910-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$68,000 USD

N.A.P. New Style Cascadia, Air Release 5th Wheel, Sliding 5th Wheel, Automatic Transmission, Espar Bunk Heater, 1500-Watt invertor, Refrigerator, TV Mounting Bracket, Opti Idle, Detroit...

Condition	Used
Usage	488,337 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	3615
MLS Number	14614622
Category	Sleeper Semi Trucks
Last Updated	9/25/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

(855) 910-___ SHOW
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2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$68,000 USD

N.A.P. New Style Cascadia, Air Release 5th Wheel, Sliding 5th Wheel, Automatic Transmission, Espar Bunk Heater, 1500-Watt invertor, Refrigerator, TV Mounting Bracket, Opti Idle, Detroit...

Condition	Used
Usage	487,817 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	3643
MLS Number	14559378
Category	Sleeper Semi Trucks
Last Updated	9/19/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

(855) 591-___ SHOW
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2024 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$79,900 USD

2024 Freightliner Cascadia 126 – 1 Owner, Fleet Maintained Cascadia!, Well-kept Mississippi Cascadia with remaining transmission coverage, low engine hours, and plenty of long-haul comfort!...

Condition	Used
Usage	502,226 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	2.85 ratio
Stock Number	UT8780
MLS Number	14569258
Category	Sleeper Semi Trucks
Last Updated	9/16/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(855) 591-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$36,900 USD

2020 Freightliner Cascadia 126 – 1 Owner, Fleet Maintained Cascadia Sleeper!, Well-equipped Cascadia 126 with a proven Detroit powertrain, spacious double-bunk condo sleeper, and a solid...

Condition	Used
Usage	756,423 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	3.08 ratio
Stock Number	LX6229
MLS Number	14604215
Category	Sleeper Semi Trucks
Last Updated	9/15/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

2025 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 350HP, 12 Speed Dt12 Automatic

$96,995 USD

2025 FREIGHTLINER CASCADIA 126, DETROIT ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 434,014 MILES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON...

Condition	Used
Usage	434,014 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	1930
MLS Number	14386362
Category	Sleeper Semi Trucks
Last Updated	9/13/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 940-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Automatic

$49,999 USD

CALL TIPTON CONQUEST FOR TRUCK AND TRAILER SALES!,

Condition	Used
Usage	506,918 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	1407
MLS Number	14601612
Category	Sleeper Semi Trucks
Last Updated	9/12/2026
Location	Odenville, AL, US
Sold By	Used Truck and Trailer, Inc.

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit, Automatic

$51,200 USD

2020 Freightliner Cascadia 126 sleeper powered by the Detroit DD15 (14.8L, 455 HP) backed by the DT12 automated 12-speed overdrive and 2.85 rears — a proven, fuel-efficient highway...

Condition	Used
Usage	631,263 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
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	LV6916
MLS Number	14585845
Category	Sleeper Semi Trucks
Last Updated	9/17/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, 450HP, 12 Speed Dt12 Amt

$49,900 USD

2020 Freightliner Cascadia 126 — 72" mid-roof sleeper. Fleet-maintained single-owner linehaul tractor. Detroit DD13 12.8L 450 HP with DT12 12-speed automated (AMT) transmission and a 2.85...

Condition	Used
Usage	15,428 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	RR35-LC8368
MLS Number	14571831
Category	Sleeper Semi Trucks
Last Updated	9/11/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, 450HP, 12 Speed Dt12 Amt

$49,500 USD

2020 Freightliner Cascadia 126 — 72" mid-roof sleeper. Fleet-maintained single-owner linehaul tractor. Detroit DD13 12.8L 450 HP with DT12 12-speed automated (AMT) transmission and a 2.85...

Condition	Used
Usage	504,209 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	RR35-LC8367
MLS Number	14571830
Category	Sleeper Semi Trucks
Last Updated	9/11/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, 450HP, 12 Speed Dt12 Amt

$50,800 USD

2020 Freightliner Cascadia 126 — 72" mid-roof sleeper. Fleet-maintained single-owner linehaul tractor. Detroit DD13 12.8L 450 HP with DT12 12-speed automated (AMT) transmission and a 2.85...

Condition	Used
Usage	21,110 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	RR35-LC8355
MLS Number	14571829
Category	Sleeper Semi Trucks
Last Updated	9/11/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, 450HP, 12 Speed Dt12 Amt

$52,200 USD

2020 Freightliner Cascadia 126 — 72" mid-roof sleeper. Fleet-maintained single-owner linehaul tractor. Detroit DD13 12.8L 450 HP with DT12 12-speed automated (AMT) transmission and a 2.85...

Condition	Used
Usage	17,203 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	RR35-LC8353
MLS Number	14571828
Category	Sleeper Semi Trucks
Last Updated	9/11/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(855) 807-___ SHOW
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2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$79,500 USD

CLEAN FLEET MAINTAINED 2023 FREIGHTLINER CASCADIA 126 SLEEPER, DETROIT DD15, 455HP, DETROIT DT12 TRANSMISSION, DOUBLE BUNK, INVERTER, REFRIGERTOR, 2.85 RATIOS, GVWR 52,500 LBS, JAKES,...

Condition	Used
Usage	480,035 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	7343
MLS Number	14592312
Category	Sleeper Semi Trucks
Last Updated	9/10/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

(833) 538-___ SHOW
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2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$34,900 USD

683227 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, 12 Speed DT12 AMT Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Wheels:...

Condition	Used
Usage	683,227 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
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
MLS Number	14592176
Category	Sleeper Semi Trucks
Last Updated	9/9/2026
Location	Idaho Falls, ID, US
Sold By	Dad's Truck and Trailer Sales

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

$74,995 USD

2021 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 447,432 MILES, FLEET MAINTAINED FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE...

Condition	Used
Usage	447,432 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
Stock Number	7078
MLS Number	14503114
Category	Sleeper Semi Trucks
Last Updated	9/9/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2022 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP, 12 Speed Dt12 Amt

$89,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, DETROIT DT12 AUTOMATIC TRANSMISSION, 367,377 MILES, FLEET MAINTAINED, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO...

Condition	Used
Usage	367,377 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
Rear End	40,000 lb
Stock Number	1990
MLS Number	14422079
Category	Sleeper Semi Trucks
Last Updated	9/9/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet