Used 6x4 Sleeper Semi Trucks with Detroit Engines For Sale

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$89,700 USD

Condition	Used
Usage	388,877 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15TCO 50 STATE
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	31110
MLS Number	13702639
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Houston, TX, US
Sold By	Schneider

(833) 801-___ SHOW
NUMBERCall Seller

2016 Freightliner Cascadia 125 Sleeper Semi Truck - 75" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$12,000 USD

GOOD TRUCK, RUNS EXCELLENT, DOUBLE BUNK, DUAL AIR RIDE SEATS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH WHEEL!,

Condition	Used
Usage	1,063,601 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	75"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.53 ratio
Stock Number	16DET106CAS
MLS Number	13884087
Category	Sleeper Semi Trucks
Last Updated	12/23/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$95,700 USD

Condition	Used
Usage	307,218 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15 GEN5
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	30700
MLS Number	13397754
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Green Bay, WI, US
Sold By	Schneider

(844) 321-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Automatic

$59,900 USD

468006 Miles, 10412 Hours, Engine: DETROIT DD15, 475 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Overdrive, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof...

Condition	Used
Usage	10,412 Hours
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	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	1708
MLS Number	14043809
Category	Sleeper Semi Trucks
Last Updated	12/16/2025
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(844) 321-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Automatic

$59,900 USD

463062 Miles, 13121 Hours, Engine: DETROIT DD15, 475 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Overdrive, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof...

Condition	Used
Usage	13,121 Hours
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	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	1706
MLS Number	14043795
Category	Sleeper Semi Trucks
Last Updated	12/16/2025
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Detroit

$55,900 USD

Emissions deleted, 468k Miles, DD13 470hp, DT12 Automated, Collision Mitigation System, 12,500 Fronts, 40,000 Rears, Aluminum Wheels, Air Slide 5th Wheel, 3.08 Ratio, 223" WB, Fleet...

Condition	Used
Usage	468,600 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	470 HP
Engine Model	Detroit DD13
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 3.08 ratio
Stock Number	MS7873
MLS Number	13773242
Category	Sleeper Semi Trucks
Last Updated	12/16/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(833) 986-___ SHOW
NUMBERCall Seller

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

$137,900 USD

LOADED WITH WARRANTY EXTENDED DETROIT AND EXTENDED FREIGHTLINER WARRANTIES, CALL NOW, NICEST USED TRUCK IN THE MARKET

Warranty

Condition	Used
Usage	225,000 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	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	266348
MLS Number	14004794
Category	Sleeper Semi Trucks
Last Updated	12/14/2025
Location	Tampa, FL, US
Sold By	Southport Truck Group

(833) 801-___ SHOW
NUMBERCall Seller

2009 Freightliner Century Class 120 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 455HP, 10 Speed Manual

$10,000 USD

RUNS AND DRIVES, AIR SEAT, DOUBLE BUNK, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH,,

Condition	Used
Usage	1,164,778 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	10 Speed Manual
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.58 ratio
Stock Number	09DET116C120
MLS Number	14042096
Category	Sleeper Semi Trucks
Last Updated	12/13/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 300-___ SHOW
NUMBERCall Seller

2020 Western Star 4900 Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 600HP, 18 Speed Manual

Contact for price

WEBASTO, BEACONS LIGHT, Transmission modelRTLO-20918B,

Condition	Used
Usage	15,355 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	600 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Hendrickson RT
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	C-37045
MLS Number	14040832
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

2023 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$75,700 USD

Condition	Used
Usage	385,227 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15 GEN5
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	54355
MLS Number	13073047
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Indianapolis, IN, US
Sold By	Schneider

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$95,700 USD

Condition	Used
Usage	329,656 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15TCO 50 STATE
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	32025
MLS Number	13843206
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Wilmer, TX, US
Sold By	Schneider

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Detroit

$49,000 USD

534,951 Miles, Detroit DD13, 450 HP, DT12 Automated, Collision Mitigation, Fridge, 72" Sleeper, Jakes, Disc Brakes, Air Slide 5th Wheel, 12,350# Fronts, 40,000# Rears, Air Ride, 223" WB,...

Condition	Used
Usage	534,951 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	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	MS7865
MLS Number	13738454
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(877) 322-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit, Other

$72,991 USD

Our 5K Your Way program allows the purchaser to apply $5000 toward your choice of: up to $5000 matching down payment, $5000 in upgraded tires, or $5000 towards additional used truck warranty...

Condition	Used
Usage	404,764 Miles
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	MSMJ7464B
MLS Number	13883165
Category	Sleeper Semi Trucks
Last Updated	12/3/2025
Location	Hialeah Gardens, FL, US
Sold By	Freightliner of Miami

2024 Freightliner Cascadia - 72" Raised Roof Double Bunk Sleeper, Detroit, Automatic, Optimized Idle

$95,700 USD

Condition	Used
Usage	317,273 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 HP
Engine Model	Detroit DD15TCO 50 STATE
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.15 ratio
Stock Number	32033
MLS Number	14007470
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	PHOENIX, AZ, US
Sold By	Schneider

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Detroit

$46,900 USD

489,856 Miles, Detroit DD13, 450 HP, DT12 Automated, Good Rubber, Clean Interior, Sliding 5th Wheel, Single Bunk Sleeper, Power Windows/Locks/Mirrors, Aluminum Wheels, Bluetooth, CD Player,...

Condition	Used
Usage	489,856 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD13
Drivetrain	6x4
Sleeper Type	Raised Roof Sleeper
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	MU4535
MLS Number	13788409
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Detroit

$51,000 USD

513,120 Miles, DD13 Detroit, 450 HP, DT12 Automated, 3.08 Ratio, 12,500 Fronts, 40,000 Rears, 223" WB, Disc Brakes, Air Slide 5th Wheel, 72" Sleeper - Single Bunk, Fridge, Aluminum Wheels,...

Condition	Used
Usage	513,120 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	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	MU4540
MLS Number	13788408
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Detroit

$51,500 USD

506k Miles, Detroit DD13, 450 HP, DT12 Automated, Collision Mitigation, Fridge, 223" WB, 3.08 Ratio, 12,500# Fronts, 40,000# Rears, 72" Sleeper, Single Bunk, Fleet Maintained, Air Slide...

Condition	Used
Usage	507,000 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	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	MS7882
MLS Number	13788402
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$41,000 USD

Several Available! Super Clean Units!, 586,814 Miles, DD15 Detroit, 505 HP, Jakes, DT12 Automated, TriPac APU, Bunk Heater, 40,000# Rears, Air Ride, Tilt/Tele, Cruise, 240" WB, Disc Brakes,...

Condition	Used
Usage	586,814 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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LJ3601
MLS Number	13712709
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Amt

$49,000 USD

571,812 Miles, DD15 Detroit, 400 HP bumped up to 505hp, DT12 Automated, APU, Collision Mitigation, 40k Rears, 2.28 Ratio, Air Ride, Deer Guard, Side Fairings, Quarter Fenders, Bunk Heater,...

Condition	Used
Usage	571,812 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 2.28 ratio
Stock Number	LH5106
MLS Number	13712690
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$43,500 USD

555,832 Miles, DD15 Detroit, 505 HP, DT12 Automated, 72 Inch Mid-Roof XT Sleeper, Engine Brake, 40k Rears, 3.08 Ratio, Air Ride Suspension, Hydraulic Power Steering, Dual Aluminum Fuel...

Condition	Used
Usage	555,832 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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LJ3610
MLS Number	13712680
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$47,500 USD

Several Available! Super Clean Units!, 504,571 Miles, DD15 Detroit, 505 HP, Jakes, DT12 Automated, Collision Mitigation System, TriPac APU, Bunk Heater, 40,000# Rears, Air Ride, Tilt/Tele,...

Condition	Used
Usage	504,571 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	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LJ3608
MLS Number	13712677
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$42,500 USD

572,857 Miles, Detroit DD15 Engine, 505 H.P Engine Brake, DT12 Transmission, (Automatic), 72" Mid-Roof XT Sleeper, 40,000 Lb. Rear Ends, 3.08 Ratio, TriPac Auxiliary Power Unit,, Super...

Condition	Used
Usage	572,857 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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LJ3604
MLS Number	13712674
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2021 Freightliner Cascadia 116 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Amt

$48,000 USD

Fresh DOT, 512,679 Miles, Detroit DD13, 450 HP, 60 Inch Mid-Roof XT Sleeper, Engine Brake, 40,000 Lb. Rear Ends, 2.41 Ratio, Air Ride Suspension, Hydraulic Power Steering, Air Conditioned,...

Condition	Used
Usage	512,679 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	MG1971
MLS Number	13586665
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$40,000 USD

714,510 Miles, DD15 Detroit, 400 HP, DT12 Automated, 2.16 Ratio, 226" WB, 12500# Fronts, 40,000# Rears, Double Bunk Sleeper, Bluetooth, Inter-Axle Lock, Air Suspension Dump, Air Slide 5th...

Condition	Used
Usage	714,510 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
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	2.16 ratio
Stock Number	MA9678
MLS Number	13463920
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC