Used Freightliner 12 Speed Sleeper Semi Trucks For Sale by Dealerships

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	620,701 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP5832
MLS Number	13765832
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	620,071 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8640
MLS Number	13778640
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	618,968 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP7629
MLS Number	13761278
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	615,629 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP1282
MLS Number	13761282
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	614,462 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8639
MLS Number	13778639
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	611,442 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8638
MLS Number	13778638
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$49,500 USD

Condition	Used
Usage	609,854 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8637
MLS Number	13778637
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$50,750 USD

Condition	Used
Usage	599,438 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8636
MLS Number	13778636
Category	Sleeper Semi Trucks
Last Updated	12/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$51,500 USD

Condition	Used
Usage	588,126 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP8635
MLS Number	13778635
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$51,500 USD

Condition	Used
Usage	586,401 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP1280
MLS Number	13761280
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$53,750 USD

Condition	Used
Usage	574,774 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP5845
MLS Number	13765845
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$53,750 USD

Condition	Used
Usage	567,937 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP6651
MLS Number	13766651
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$57,950 USD

Condition	Used
Usage	520,426 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP5833
MLS Number	13765833
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$58,500 USD

Condition	Used
Usage	517,578 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP1281
MLS Number	13761281
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$58,500 USD

Condition	Used
Usage	508,304 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP5834
MLS Number	13765834
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$59,950 USD

Condition	Used
Usage	495,597 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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
Stock Number	CP5831
MLS Number	13765831
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Strafford, MO, US
Sold By	HD Trucks LLC

(855) 942-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

$66,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 414,718 miles, 400HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	414,718 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21258
MLS Number	13813816
Category	Sleeper Semi Trucks
Last Updated	1/24/2026
Location	Charlotte, NC, US
Sold By	Penske Used Trucks

(855) 942-___ SHOW
NUMBERCall Seller

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 48" Integral Sleeper, 455HP, 12 Speed Automatic

$49,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 544,087 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 48" integral sleeper, tandem rear axle,...

Condition	Used
Usage	544,087 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.23 ratio
Stock Number	357045
MLS Number	13813780
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Jacksonville, FL, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$86,500 USD

2023 Freightliner Cascadia CA126SLP Sleeper Cab Detriot DD15 Engine, 12 Speed DD DT12 Automatic Transmission, Tandem Axle, 229" Wheel Base, Double Bunk, Single Fleet Owned/Maintained, Twin...

Quantity	8
Condition	Used
Usage	353,952 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	2.28 ratio
Stock Number	NHST23FCOH Web
MLS Number	13769985
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Youngstown, OH, US
Sold By	Nationwide Haul

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$86,500 USD

2023 Freightliner Cascadia CA126SLP Sleeper Cab Detriot DD15 Engine, 12 Speed DD DT12 Automatic Transmission, Tandem Axle, 229" Wheel Base, Double Bunk, Single Fleet Owned/Maintained, Twin...

Quantity	8
Condition	Used
Usage	353,952 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	2.28 ratio
Stock Number	NHST23FCOH
MLS Number	13769983
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Youngstown, OH, US
Sold By	Nationwide Haul

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$74,500 USD

2022 Freightliner Cascadia CA126SLP Sleeper Cab Detriot DD15 Engine, 12 Speed DD DT12 Automatic Transmission, Tandem Axle, 229" Wheel Base, Double Bunk, Single Fleet Owned/Maintained, Twin...

Quantity	8
Condition	Used
Usage	335,515 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	2.28 ratio
Stock Number	NHST22FCOH Web
MLS Number	13769982
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Youngstown, OH, US
Sold By	Nationwide Haul

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$74,500 USD

2022 Freightliner Cascadia CA126SLP Sleeper Cab Detriot DD15 Engine, 12 Speed DD DT12 Automatic Transmission, Tandem Axle, 229" Wheel Base, Double Bunk, Single Fleet Owned/Maintained, Twin...

Quantity	8
Condition	Used
Usage	335,515 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	2.28 ratio
Stock Number	NHST22FCOH
MLS Number	13769975
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Youngstown, OH, US
Sold By	Nationwide Haul

(844) 748-___ SHOW
NUMBERCall Seller

2016 Freightliner Cascadia 125 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 505HP, 12 Speed Amt

$18,000 USD

731922 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, 12 Speed AMT Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 76, Wheels:...

Condition	Used
Usage	731,922 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	20,000 lb
Stock Number	HH5962
MLS Number	13537755
Category	Sleeper Semi Trucks
Last Updated	9/16/2025
Location	Lancaster, CA, US
Sold By	TFS Recovery, Inc.

(844) 385-___ SHOW
NUMBERCall Seller

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

$59,495 USD

Condition	Used
Usage	505,036 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13 GHG'17 450/1625
Transmission	12 Speed
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	880013
MLS Number	13812732
Category	Sleeper Semi Trucks
Last Updated	1/14/2026
Location	Charlotte, NC, US
Sold By	Ryder