Freightliner 6x4 Trucks with Detroit Engines For Sale

Featured Item

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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$36,500 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	670,003 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 3.08 ratio
Stock Number	344
MLS Number	13542058
Category	Sleeper Semi Trucks
Last Updated	8/5/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

Featured Item

19 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$34,950 USD

First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience. Call, click, or stop by and visit us...

Condition	Used
Usage	665,832 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 3.08 ratio
Stock Number	342
MLS Number	13523794
Category	Sleeper Semi Trucks
Last Updated	8/5/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(844) 841-___ SHOW
NUMBERCall Seller

Featured Item

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2016 Freightliner Cascadia Water Truck 4000 gallons new steel tank!

$79,000 USD

Detroit engine DD13 45,000 original miles 10 speed manual Eaton Fuller transmission jake brake tires 90% Cold A/C new steel tank 4000 gallons baffled side to side 2 compartments, new water...

Condition	Used
Usage	45,000 Miles
Duty Class	Heavy Duty Water Truck
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	Manual
Capacity	4000 Gallons
Compartments	2
MLS Number	13740814
Category	Water Trucks
Last Updated	8/5/2025
Location	Gadsden, AZ, US
Sold By	Iron Lot LLC

Featured Item

19 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$44,950 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	567,537 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	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	346
MLS Number	13542957
Category	Sleeper Semi Trucks
Last Updated	7/21/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

Featured Item

19 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$37,500 USD

First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience. Call, click, or stop by and visit us...

Condition	Used
Usage	625,682 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 3.08 ratio
Stock Number	336
MLS Number	13483776
Category	Sleeper Semi Trucks
Last Updated	7/27/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(844) 841-___ SHOW
NUMBERCall Seller

Featured Item

19 0

2012 Freightliner Cascadia Water Truck 4000 gallons new steel tank!!

$49,500 USD

Water Truck Freightliner 2012 Cascadia engine DD13 450 HP jake brake 10 speed manual transmission Eaton fuller new drive shaft with new pto, new water tank 4000 gallons baffled side to side...

Condition	Used
Duty Class	Heavy Duty Water Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	10 Speed Manual
Capacity	40000 Gallons
Compartments	2
MLS Number	13696944
Category	Water Trucks
Last Updated	7/18/2025
Location	Gadsden, AZ, US
Sold By	Iron Lot LLC

(909) 356-___ SHOW
NUMBERCall Seller

Featured Item

16 0

2017 Freightliner Cascadia Day Cab Truck

$30,000 USD

Salvage Rebuilt Unit.

Warranty

Condition	Used
Usage	5,360 Miles
Duty Class	Heavy Duty Day Cab Truck
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	10 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	IDE19-345
MLS Number	12702505
Category	Day Cab Semi Trucks
Last Updated	7/25/2025
Location	San Bernardino, CA, US
Sold By	Inland Dynamic Enterprises Inc.

(530) 375-___ SHOW
NUMBERCall Seller

Featured Item

13 0

2020 Freightliner SD122 Custom Built Logging Truck

$185,000 USD

2020 SD122 Freightliner Speced out and custom built, with large cooling system, DD16 Detroit, Large 18 spd, Big drive line, 46,000 lb Meritor drivers, full lockers, 373 ratio, 14,700 hard...

Warranty

Condition	Used
Usage	318,000 Miles
Duty Class	Heavy Duty Logging Truck
Horse Power	600 HP
Engine Model	Detroit Detroit Diesel DD16
Emission Rating	Tier 4 Final
Drivetrain	6x4
Transmission	18 Speed Manual
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.73 ratio
MLS Number	13557712
Category	Logging Trucks
Last Updated	8/13/2025
Location	Greenville, CA, US
Sold By	Vernon Roberts

(833) 490-___ SHOW
NUMBERCall Seller

16 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck- 72in Condo , Double Bunk ,455HP , Carrier APU

Newly Listed

$59,950 USD

For sale: 2021 Freightliner Cascadia with 502,000 miles, powered by a reliable Detroit engine and DT12 automatic transmission. Features a spacious 72-inch condo sleeper with double bunk,...

Warranty

Condition	Used
Usage	10,393 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Double Bunk
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	UMJ9351
MLS Number	13756361
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 986-___ SHOW
NUMBERCall Seller

Tri State Truck Center - Springfield, MO

29 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

Newly Listed

$59,900 USD

513225 Miles, Engine: DETROIT DD15, 505 HP, Fuel Type: Diesel, Drive: 6x4, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Wheel Base: 237, Tandem Rear Axles,...

Condition	Used
Usage	513,225 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
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	264343
MLS Number	13755972
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Tampa, FL, US
Sold By	Southport Truck Group

(855) 910-___ SHOW
NUMBERCall Seller

10 0

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

Newly Listed

$58,950 USD

N.A.P. New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Alum Wheels, Well Maintained Fleet Truck, Oil...

Condition	Used
Usage	484,729 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	40,000 lb 2.41 ratio
Stock Number	3552
MLS Number	13755696
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

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2021 Freightliner Cascadia 126 Sleeper Semi Truck

Recently Updated

Contact for price

Thanks for Shopping. We have 10 Units incoming ready for sale! Dot inspected and ready for the road. average miles are around 370k miles DD-15 ,DT12 HP Fleet 400HP Low Miles and We can...

Warranty

Quantity	10
Condition	Used
Usage	365,000 Miles
Horse Power	400 HP
Engine Model	Detroit dd15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Size	72"
MLS Number	12980792
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Dupo, IL, US
Sold By	Genesis Equipment Leasing

21 0

2016 Freightliner CAS125 Sleeper Semi Truck

Recently Updated

Contact for price

RED CLASSIC 2016 ROAD READY FINANCING AVAILABLE

Condition	Used
Usage	661,629 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Double Bunk
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	HB1280
MLS Number	12500454
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Dupo, IL, US
Sold By	Genesis Equipment Leasing

6 0

2016 Freightliner CAS125 Sleeper Semi Truck

Recently Updated

Contact for price

Fabulous 2016 Cascadia - Financing Available This truck has been ran through 100% this unit is not California complaint . TunedDeleted 505HP

Condition	Used
Usage	648,848 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit dd15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Double Bunk
Stock Number	gx7919
MLS Number	12496213
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Dupo, IL, US
Sold By	Genesis Equipment Leasing

(833) 781-___ SHOW
NUMBERCall Seller

19 0

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

Price Drop

$85,700 USD

Condition	Used
Usage	334,318 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	54017
MLS Number	13001909
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Obetz, OH, US
Sold By	Schneider

(833) 781-___ SHOW
NUMBERCall Seller

20 0

2020 Freightliner Sleeper Semi Truck - 72" Extra-Tall Roof, Detroit, Automatic - Manager's Special!

Price Drop

$54,700 USD

Condition	Used
Usage	348,294 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD13 EPA 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	12452
MLS Number	12785981
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Gary, IN, US
Sold By	Schneider

11 0

2018 Freightliner Cascadua 125 Sleeper Sleeper Semi Truck

Recently Updated

Contact for price

Spectacular 2018 Cascadia-Financing available

Condition	Used
Usage	612,516 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Double Bunk
Stock Number	jk1177
MLS Number	12496207
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Dupo, IL, US
Sold By	Genesis Equipment Leasing

(833) 986-___ SHOW
NUMBERCall Seller

28 0

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

Recently Updated

$76,900 USD

THERMOKING APU, EXT DETROIT EW4 ENGINE COVERAGE 48 Months 03/25/Miles,

Condition	Used
Usage	438,930 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	264369
MLS Number	13738416
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Tampa, FL, US
Sold By	Southport Truck Group

(844) 912-___ SHOW
NUMBERCall Seller

43 1

2019 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$48,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 SPEED AUTOMATIC!!! DEF, TRAILER BRAKE Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!!,

Condition	Used
Usage	553,210 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	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	F02706-DELIVERY 2 U
MLS Number	13685194
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Fort Worth, TX, US
Sold By	Diamond Truck Sales Inc

(713) 532-___ SHOW
NUMBERCall Seller

6 0

2023 Freightliner M2 112 Dump Truck - Detroit 450HP, Automatic

Recently Updated

$150,000 USD

2023 Freightliner M2 112 Dump 67k miles, Detroit DD13, Allison auto, 16ft hardbox, air ride, all premium features, still under 500K Freightliner warranty. Work-ready, powerful, and built to...

Quantity	3
Condition	Used
Usage	67,452 Miles
Duty Class	Heavy Duty Dump Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	Allison HS Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.90 ratio
MLS Number	13680150
Category	Dump Trucks
Last Updated	8/13/2025
Location	Humble, TX, US
Sold By	TCI Transportation

20 0

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

Price Drop

$49,950 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	612,037 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 2.85 ratio
Stock Number	358
MLS Number	13649798
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

14 0

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

Price Drop

$49,950 USD

First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience. Call, click, or stop by and visit us...

Condition	Used
Usage	656,100 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 2.85 ratio
Stock Number	356
MLS Number	13649796
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

20 0

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

Price Drop

$49,950 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	620,632 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 2.85 ratio
Stock Number	355
MLS Number	13649795
Category	Sleeper Semi Trucks
Last Updated	8/13/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales