Used 12 Speed Tandem Axle Sleeper Semi Trucks For Sale

(833) 490-___ SHOW
NUMBERCall Seller

2023 Freightliner Cascadia 126 Sleeper, New Drive Tires, FACTORY WARRANTY REMAINING , Cummins X15 Engine , 500HP !!! Fridge , Apu , Financing

$62,950 USD

For sale: a powerhouse 2023 Freightliner Cascadia with just 488,000 well-maintained miles, ready to tackle your heaviest hauls! Powered by the legendary Cummins X15 500HP engine paired with...

Warranty

Condition	Used
Usage	488,847 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	UUG1661
MLS Number	13999600
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

Tri State Truck Center - Springfield, MO

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 560HP, 12 Speed Automatic

Recently Updated

$50,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 596,939 miles, 560HP DD16 diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	596,940 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	560 HP
Engine Model	DD16
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	366172
MLS Number	14099052
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Brooklyn Park, MN, US
Sold By	Penske Used Trucks

(844) 956-___ SHOW
NUMBERCall Seller

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

Recently Updated

Contact for price

Cummins X15 6 Cylinder 15.0 L Diesel 500 hp Engine, 2022 US EPA Label, CARB Compliant, Requires Diesel Exhaust Fluid, 120 gal Left Fuel Tank 150 gal Right Fuel Tank, Premier Interior, Dual...

Condition	Used
Usage	312,942 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	80"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	D2698
MLS Number	14120817
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	West Sacramento, CA, US
Sold By	DeWald Equipment

(844) 385-___ SHOW
NUMBERCall Seller

2019 Freightliner PT126064ST Sleeper Semi Truck - 72" Condo Sleeper, 505HP, 12 Speed Automatic

Recently Updated

$49,080 USD

Condition	Used
Usage	696,379 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
Stock Number	597561
MLS Number	13740105
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Memphis, TN, US
Sold By	Ryder

(855) 981-___ SHOW
NUMBERCall Seller

2018 Freightliner Cascadia 125 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Newly Listed

$35,900 USD

2018 Freightliner Cascadia 125 Specs:, -HP:505, -Drive: 6x4, -Engine: Detroit DD15, -Mileage: 484,686, -Dual Tires 22.5LP, -Wheels: All Aluminum, -Suspension: Air-Ride, -Single Bunk Sleeper,...

Condition	Used
Usage	484,686 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	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC8589LAK Web
MLS Number	14153755
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

(855) 981-___ SHOW
NUMBERCall Seller

2018 Freightliner Cascadia 125 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Newly Listed

$35,900 USD

2018 Freightliner Cascadia 125 Specs:, -HP:505, -Drive: 6x4, -Engine: Detroit DD15, -Mileage: 484,686, -Dual Tires 22.5LP, -Wheels: All Aluminum, -Suspension: Air-Ride, -Single Bunk Sleeper,...

Condition	Used
Usage	484,686 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	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	TNHC8589LAK
MLS Number	14153748
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Lakeland, FL, US
Sold By	Nationwide Haul

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

Price Drop $69,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 420,214 miles, 505 HP DD15AT engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	422,375 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	280832
MLS Number	14013634
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Tacoma, WA, US
Sold By	Penske Used Trucks

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Recently Updated

$57,000 USD

Used 2024 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 748,754 miles, DD15AT diesel engine, 505 HP, 12-speed automatic transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	749,196 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	207055
MLS Number	14117050
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Colorado Springs, CO, US
Sold By	Penske Used Trucks

(909) 775-___ SHOW
NUMBERCall Seller

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

Newly Listed

$67,900 USD

One owner truck, Fleet maintained, Contact Sergio,

Condition	Used
Usage	466,000 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
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
MLS Number	14149633
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

(909) 775-___ SHOW
NUMBERCall Seller

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

Recently Updated

$67,900 USD

One owner truck, Fleet maintained, Contact Sergio,

Condition	Used
Usage	466,000 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
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	2599
MLS Number	14078054
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	TCI Transportation

(866) 530-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Recently Updated

$64,995 USD

DETROIT DD15 / AUTOMATIC TRANSMISSION / APU / PTO / FLEET MAINTAINED / FINANCING AVAILABLE 2021 FREIGHTLINER CASCADIA 126, MID-ROOF XT SLEEPER, 428,111 MILES, DETORIT DD15 ENGINE, DETROIT...

Condition	Used
Usage	428,111 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	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	5778
MLS Number	13688194
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(844) 321-___ SHOW
NUMBERCall Seller

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Newly Listed

$97,900 USD

Balance of Detroit Diesel 5 Year/500K Mile Major Components (PARTS ONLY) Warranty and 5 Year/750K Mile Basic Transmission Warranty In Service: 01/30/2024,

Condition	Used
Usage	9,879 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	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	1723
MLS Number	14147951
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Recently Updated

$58,500 USD

Used 2024 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 732,837 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	732,859 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	207058
MLS Number	14100139
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Medley, FL, US
Sold By	Penske Used Trucks

(844) 624-___ SHOW
NUMBERCall Seller

2024 Kenworth T680 Sleeper Semi Truck - 52" Mid Roof Sleeper, Paccar 510HP, 12 Speed Endurant Automatic

Price Drop $87,950 USD

2024 Kenworth T680 – Low Miles, Long Warranty, Ready to Roll. This 2024 Kenworth T680 is a standout late-model sleeper with only 120,000 verified miles and exceptional factory warranty...

Condition	Used
Usage	120,165 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	52"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	CO11033
MLS Number	14053871
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

(844) 321-___ SHOW
NUMBERCall Seller

2022 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

Recently Updated

$69,900 USD

SPECIAL!!! Was $78,900 Now $69,900, MUST GO,

Condition	Used
Usage	13,782 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	1682
MLS Number	14043649
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$68,250 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 505HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	581,822 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	180674
MLS Number	14105610
Category	Sleeper Semi Trucks
Last Updated	2/14/2026
Location	Portland, OR, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$85,500 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 406,289 miles, 505 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	406,289 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	466585
MLS Number	14145108
Category	Sleeper Semi Trucks
Last Updated	2/15/2026
Location	Dallas, TX, US
Sold By	Penske Used Trucks

(855) 591-___ SHOW
NUMBERCall Seller

2018 Volvo VNL62T670 Sleeper Semi Truck - Raised Roof Sleeper, D13 500HP, 12 Speed I Shift Amt

$15,900 USD

2018 Volvo VNL 670 - Recent Trade in from Florida. Owner Operator Spec. This truck runs and drives fine. , 500HP D13 Engine, , 12 Speed I-Shift, , Double Bunk Condo Sleeper, , 1,000,302...

Condition	Used
Usage	1,001,302 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Volvo D13
Drivetrain	6x4
Transmission	12 Speed I Shift Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	996759
MLS Number	14144685
Category	Sleeper Semi Trucks
Last Updated	2/14/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

(844) 321-___ SHOW
NUMBERCall Seller

2024 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$99,900 USD

Balance of Detroit Diesel 2y/999999 ml BASIC ENGINE Warranty and 5 Year/750K Mile Basic Transmission Warranty, In Service: 06/30/2024,

Condition	Used
Usage	8,374 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	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	1720
MLS Number	14144654
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

(609) 318-___ SHOW
NUMBERCall Seller

2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 510HP, 12 Speed Endurant Amt

$102,900 USD

190794 Miles, Engine: PACCAR MX-13, 510 HP, 12 Speed Endurant AMT Transmission, Drive: 6x4, Pete Low Air Leaf Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 80, Wheels:...

Condition	Used
Usage	190,794 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	257111
MLS Number	14142764
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(609) 318-___ SHOW
NUMBERCall Seller

2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Paccar 510HP, 12 Speed Endurant Amt

Price Drop $102,900 USD

READY FOR WORK! 2 UNITS AVAILABLE,

Condition	Used
Usage	190,794 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Pete Low Air Leaf
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	257113
MLS Number	14127457
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(844) 216-___ SHOW
NUMBERCall Seller

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	2/13/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(844) 385-___ SHOW
NUMBERCall Seller

2020 Freightliner Cascadia 125 Sleeper Semi Truck - 38" Flat Top Sleeper, 505HP, 12 Speed Automatic

$57,472 USD

Condition	Used
Usage	583,498 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	Flat Top Sleeper
Sleeper Size	38"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	884405
MLS Number	14138980
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Fort Worth, TX, US
Sold By	Ryder

(844) 624-___ SHOW
NUMBERCall Seller

2021 Kenworth W990 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

$84,950 USD

NEW PICTURES COMING. This 2021 Kenworth W990 sleeper truck offers premium features and a strong spec for owner-operators and fleets alike. Highlighted upgrades include chicken lights, a full...

Condition	Used
Usage	483,049 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.87 ratio
Stock Number	CO11128
MLS Number	14120119
Category	Sleeper Semi Trucks
Last Updated	2/17/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks