Used 12 Speed Automatic Sleeper Semi Trucks with Detroit Engines For Sale

(323) 712-___ SHOW
NUMBERCall Seller

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP, 12 Speed Dt12 Automatic

Newly Listed

Contact for price

this unit is ready for delivery

Condition	Used
Usage	601,404 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2573
MLS Number	14157591
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

(702) 452-___ SHOW
NUMBERCall Seller

2020 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP, 12 Speed Dt12 Automatic

Newly Listed

Contact for price

this unit is ready for deliver,

Condition	Used
Usage	601,404 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	2573
MLS Number	14157553
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

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

Recently Updated

$71,999 USD

CLEAN FLEET MAINTAINED TRUCK BRAND NEW DRIVE TIRES GOOD CREDIT, OKAY CREDIT, BAD CREDIT NO PROBLEM CONTACT ADAM AT,

Condition	Used
Usage	349,361 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
MLS Number	13969258
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Selma, CA, US
Sold By	Selma Truck Sales

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

Recently Updated

$59,999 USD

CLEAN FLEET MAINTAINED TRUCK BRAND NEW DRIVE TIRES GOOD CREDIT, OKAY CREDIT, BAD CREDIT NO PROBLEM CONTACT ADAM AT,

Condition	Used
Usage	439,418 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
MLS Number	13955481
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Selma, CA, US
Sold By	Selma Truck Sales

(855) 717-___ SHOW
NUMBERCall Seller

2021 Freightliner Cascadia 116 Sleeper Semi Truck - 60" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$52,900 USD

****!!!8 NEW TIRES!!!**** *** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** COLLISION MITIGATION, AIR RIDE SEATS!!!! SLIDING 5TH WHEEL!!!!! Se Habla Español! NO CREDIT? BAD...

Condition	Used
Usage	492,440 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	N15163-8 NEW TIRES
MLS Number	13804393
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

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

Newly Listed

$65,995 USD

FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED CREDIT, FIRST TIME BUYERS WELCOME, EXTENDED WARRANTIES AVAILABLE, TRADE INS WELCOME, NATIONWIDE DELIVERY AVAILABLE...

Condition	Used
Usage	424,000 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
Rear End	40,000 lb
Stock Number	7381
MLS Number	14156084
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(855) 717-___ SHOW
NUMBERCall Seller

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

Recently Updated

$56,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC!!!! AIR RIDE, ATC SPIN, HSA OFF, ENGINE BRAKE, SLIDING 5TH WHEEL, SLPR DOME, AMBT LIGHT, FOOT WELL, DOME LIGHT, UTLY...

Condition	Used
Usage	500,447 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	69"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	L01628-DELIVERY 2 U
MLS Number	14023694
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

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

Price Drop $59,999 USD

CLEAN FLEET MAINTAINED TRUCK BRAND NEW DRIVE TIRES GOOD CREDIT, OKAY CREDIT, BAD CREDIT NO PROBLEM CONTACT ADAM AT,

Condition	Used
Usage	434,250 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
MLS Number	13963812
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Selma, CA, US
Sold By	Selma Truck Sales

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

Price Drop $57,999 USD

CLEAN FLEET MAINTAINED TRUCK BRAND NEW DRIVE TIRES GOOD CREDIT, OKAY CREDIT, BAD CREDIT NO PROBLEM CONTACT ADAM AT,

Condition	Used
Usage	464,594 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
MLS Number	13955468
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Selma, CA, US
Sold By	Selma Truck Sales

(844) 624-___ SHOW
NUMBERCall Seller

2019 Freightliner Cascadia 113 Sleeper Semi Truck - 60" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$34,950 USD

FOR SALE 2019 FREIGHTLINER 113 FRESH PM JUST DONE! New Brakes and Rotors! Comes equipped with a Detroit DD13 450 HP and a Detroit DT12 transmission 12 speed ONLY 470,104 MILES NEW BRAKES!...

Condition	Used
Usage	470,776 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	CO10644
MLS Number	13949408
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 900-___ SHOW
NUMBERCall Seller

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

Recently Updated

$46,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 SPEED AUTOMATIC!!! SLIDING 5TH WHEEL, AIR RIDE, DEF, ENGINE BRAKE, DOME LIGHT, SLPR DOME, HSA LIGHT, UTLY LIGHT, LDW OFF,...

Condition	Used
Usage	509,160 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	57"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	L01588-DELIVERY 2 U
MLS Number	13963944
Category	Sleeper Semi Trucks
Last Updated	2/22/2026
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(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

(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

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

Recently Updated

$70,995 USD

2022 FREIGHTLINER CASCADIA 126, DETROIT DD15, GEN 5, 455 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 434,416 MILES FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED...

Condition	Used
Usage	434,416 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
Rear End	40,000 lb
Stock Number	3383
MLS Number	14083864
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

(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

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

Recently Updated

$69,995 USD

WALMART TRUCK! LOADED! 2021 FREIGHTLINER CASCADIA 126, DETROIT DD15 LOW ENGINE HOURS, DETROIT DT12 AUTOMATIC TRANSMISSION, 401,359 MILES, DIESEL APU, REFRIGERATOR, COLLISION MITIGATION...

Condition	Used
Usage	401,359 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
Rear End	40,000 lb
Stock Number	8203
MLS Number	13879849
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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

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

Recently Updated

$62,995 USD

DETROIT DD15 / AUTOMATIC TRANSMISSION / FLEET MAINTAINED / FINANCING AVAILABLE 2021 FREIGHTLINER CASCADIA 126, DETROIT DD15, DETROIT DT12 AUTOMATIC TRANSMISSION, 456,101 MILES, FLEET...

Condition	Used
Usage	456,101 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
Rear End	40,000 lb
Stock Number	3250
MLS Number	13633975
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2018 Freightliner Cascadia 126 Sleeper Semi Truck

Recently Updated

$36,995 USD

2018 FREIGHTLINER CASCADIA 126, DETROIT DD15, DETROIT DT12 AUTOMATIC TRANSMISSION, 678,524 MILES, FLEET MAINTAINED, READY TO WORK FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN...

Condition	Used
Usage	678,524 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
Rear End	40,000 lb
Stock Number	0741
MLS Number	13612308
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2023 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Recently Updated

$91,995 USD

GEN5 DETROIT DD15 / DT12 AUTOMATIC TRANSMISSION / APU / REMAINING WARRANTY / FINANCING AVAILABLE 2023 FREIGHTLINER CASCADIA 126, 72 INCH MID-ROOF XT SLEEPER, 338,539 MILES, DETROIT DD15...

Condition	Used
Usage	338,539 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	425 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	4704
MLS Number	13482068
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Recently Updated

$68,995 USD

DETROIT DD15 / DT12 AUTOMATIC TRANSMISSION / FLEET MAINTAINED / FINANCING AVAILABLE 2021 FREIGHTLINER CASCADIA 126, DETROIT DD15, DETROIT DT12 AUTOMATIC TRANSMISSION, 400,566 MILES, FLEET...

Condition	Used
Usage	400,566 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
Stock Number	4526
MLS Number	13437039
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

Recently Updated

$59,995 USD

DETROIT DD15 / DETROIT DT12 AUTOMATIC TRANSMISSION / FLEET MAINTAINED / FINANCING AVAILABLE 2021 FREIGHTLINER CASCADIA, DETROIT DD15, 455 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 435,030...

Condition	Used
Usage	435,030 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	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	8162
MLS Number	13436982
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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

Recently Updated

$70,995 USD

DETROIT DD15 / DETROIT DT12 AUTOMATIC / FINANCING AVAILABLE / FLEET MAINTAINED 2021 FREIGHTLINER CASCADIA 126, DETROIT DD15 ENGINE, 455 HP, DETROIT DT12 AUTOMATIC TRANSMISSION, 369,598...

Condition	Used
Usage	369,598 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
Stock Number	8028
MLS Number	13436849
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet