Used 12 Speed Sleeper Semi Trucks For Sale

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 505HP, 12 Speed Automatic

$69,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck with 60" Integral Sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	307,422 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	282374
MLS Number	14013663
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Jacksonville, FL, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$47,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck featuring a 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	560,111 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.08 ratio
Stock Number	399673
MLS Number	13555674
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Dallas, TX, US
Sold By	Penske Used Trucks

(833) 657-___ SHOW
NUMBERCall Seller

2023 Volvo VNL64T860 Sleeper Semi Truck

$129,990 USD

Truck is in very good condition, APU, VIRGIN TIRES 80-90%, automatic transmission, d13 engine 500hp, warranty

Warranty

Condition	Used
Usage	198,237 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automatic
Sleeper Type	Raised Roof Condo
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
MLS Number	14068964
Category	Sleeper Semi Trucks
Last Updated	1/2/2026
Location	Blue Island, IL, US
Sold By	DMC Logistics

(833) 657-___ SHOW
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2018 Freightliner Cascadia 125 EVO Sleeper Semi Truck

$39,990 USD

2018 freightliner cascadia evolution, truck is in very good condition, Detroit dd15 engine 505 hp, dt 12 automatic transmission, new brakes, virgin tires at 90%, APU unit

Condition	Used
Usage	450,229 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	4 Bag Air Ride
Rear Axle	Tandem Axle
MLS Number	14068958
Category	Sleeper Semi Trucks
Last Updated	1/2/2026
Location	Blue Island, IL, US
Sold By	DMC Logistics

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$60,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	468,596 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	457241
MLS Number	13854163
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Fredericksburg, VA, US
Sold By	Penske Used Trucks

(833) 801-___ SHOW
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2022 Western Star 5700XE Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$37,000 USD

GOOD TRUCK, RUNS EXCELLENT, VERY CLEAN, DUAL AIR RIDE SEATS, POWER WINDOWS, POWER MIRRORS, HEATED MIRROS, DIFFERENTIAL LOCK, DUMP VALVE, SIDING 5TH WHEEL, SUPER NICE TRUCK!,

Condition	Used
Usage	600,890 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	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	22DET600WSTAR
MLS Number	13982505
Category	Sleeper Semi Trucks
Last Updated	12/24/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 478-___ SHOW
NUMBERCall Seller

2020 Peterbilt 579 Sleeper Semi Truck - 70" Mid Roof Sleeper, Paccar 455HP, 12 Speed Automatic

$50,495 USD

SUPER CLEAN .LOW MILES.PACCAR MX13 455HP .12 SPD AUTOMATIC.70"SLEEPER.FULL LOCKING REARS.VIRGIN TIRES. GREAt START OUT TRUCK

Condition	Used
Usage	513,910 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14830C
MLS Number	13716743
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(833) 986-___ SHOW
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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

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Price Drop $58,250 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 539,787 miles, 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission. Don't miss this...

Condition	Used
Usage	539,787 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	281812
MLS Number	14040601
Category	Sleeper Semi Trucks
Last Updated	2/8/2026
Location	Portland, OR, US
Sold By	Penske Used Trucks

(844) 955-___ SHOW
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2024 Peterbilt 579 Sleeper Semi Truck - Cummins 500HP, 12 Speed Automatic

$112,750 USD

Only 195,000 Original Miles ~ Cummins X15 ~ 500 HP ~ 12 Speed Automatic ~ Only One Owner ~ Cummins Warranty through 3/13/26 or 250K miles ~ Financing Available with Your Good Credit,

Condition	Used
Usage	195,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	837309
MLS Number	13679862
Category	Sleeper Semi Trucks
Last Updated	12/9/2025
Location	Olive Branch, MS, US
Sold By	Truck Market

2019 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$47,500 USD

Used 2019 Freightliner Cascadia 125 Sleeper Semi Truck for sale, 502,371 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	502,376 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.08 ratio
Stock Number	219890
MLS Number	13867501
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Prince George, VA, US
Sold By	Penske Used Trucks

(844) 385-___ SHOW
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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Condo Sleeper, 505HP, 12 Speed Automatic

Price Drop $54,689 USD

Condition	Used
Usage	684,818 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	DD15 GHG'17 505/1625
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	292327
MLS Number	14020796
Category	Sleeper Semi Trucks
Last Updated	2/5/2026
Location	Beltsville, MD, US
Sold By	Ryder

(724) 704-___ SHOW
NUMBERCall Seller

2023 Peterbilt 567 Sleeper Semi Truck - 58" Raised Roof Sleeper, Paccar 510HP, 12 Speed Amt

$89,900 USD

MULTIPLE UNITS,

Condition	Used
Usage	208,774 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	58"
Suspension	Pete Low Air Leaf
Rear End	40,000 lb 3.25 ratio
Stock Number	250971
MLS Number	13788616
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Eau Claire, PA, US
Sold By	Hunter Truck

(724) 704-___ SHOW
NUMBERCall Seller

2023 Peterbilt 567 Sleeper Semi Truck - 58" Raised Roof Sleeper, Paccar 510HP, 12 Speed Amt

$89,900 USD

58" SLPR, MULTIPLE UNITS TO PICK FROM,

Condition	Used
Usage	245,333 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	58"
Suspension	Pete Low Air Leaf
Rear End	40,000 lb 3.25 ratio
Stock Number	250974
MLS Number	13743863
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Eau Claire, PA, US
Sold By	Hunter Truck

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$66,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 491,895 miles, 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	491,921 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	457242
MLS Number	13850860
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Sturtevant, WI, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$69,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 451,865 miles, 72" integral sleeper, 505HP DD15AT engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	451,866 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	457240
MLS Number	13907412
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Allentown, PA, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$62,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck, 539,325 miles, 72" integral sleeper, 505 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 13,300 lb front axle,...

Condition	Used
Usage	539,326 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 3.23 ratio
Stock Number	457239
MLS Number	13899952
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Tallahassee, FL, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$49,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 616,233 miles, 505 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	616,236 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 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 2.85 ratio
Stock Number	406817
MLS Number	13574674
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Fontana, CA, US
Sold By	Penske Used Trucks

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

$46,500 USD

517,147 Miles, Detroit DD15, 505 HP, Jakes, DT12 Automated, 72" Mid-Roof XT Sleeper, Single Bunk, TriPAC APU, Super Singles w/Good Tread, 40k Rears, 3.08 Ratio, Air Ride, Bunk Heater,...

Condition	Used
Usage	517,147 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	LJ3612
MLS Number	13712681
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