12 Speed 6x4 Trucks with Detroit Engines For Sale

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2016 Freightliner Cascadia 125 Evolution Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$31,900 USD

2016 Freightliner Cascadia Evolution, 12 Speed Automatic, Lots of work done to this truck recently including head gaskets, turbo and more and it is ready to go!!,

Condition	Used
Usage	714,019 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	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	2.47 ratio
MLS Number	12963381
Category	Sleeper Semi Trucks
Last Updated	1/15/2025
Location	Ravenel, SC, US
Sold By	Ravenel Truck & Equipment

14 0

2018 Freightliner Cascadia 126 Day Cab Truck - Detroit 435HP, 12 Speed Dt12 Amt

Recently Updated

$34,900 USD

2018 FREIGHTLINER Cascadia126 Non-Sleeper Conventional, 414,000 Approximate Miles, ECM Reads 414,000 Miles, Detroit DD13 Engine, 435 H.P., Engine Brake, DT12 Transmission, (Automatic),...

Condition	Used
Usage	414,656 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
MLS Number	13360445
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

4 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt

Recently Updated

$33,900 USD

2020 FREIGHTLINER Cascadia126 Non-Sleeper Conventional, 558,000 Approximate Miles, ECM Reads 558,000 Miles, Detroit DD13 Engine, 450 H.P., Engine Brake, DT12 Transmission, (Automatic),...

Condition	Used
Usage	558,000 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.41 ratio
Stock Number	LH0164
MLS Number	13360406
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

15 2

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP, Automatic

Recently Updated

$36,900 USD

Fleet Maintained, Stock LL9645, Miles 373,510, DD13, 450 HP, DT 12 Automatic, 3.08 Ratio, 180" WB, Cruise, Tilt/Tele, Air slide 5TH, Dual Air Ride Seats, Power Windows/Mirrors, Inter axel...

Condition	Used
Usage	370,954 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LL9618
MLS Number	13334618
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

19 2

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP, Automatic

Recently Updated

$34,900 USD

Fleet Maintained, Stock LL9644, Miles 423,299, DD13, 450 HP, DT 12 Automatic, 3.08 Ratio, 180" WB, Cruise, Tilt/Tele, Air slide 5TH, Dual Air Ride Seats, Power Windows/Mirrors, Inter axel...

Condition	Used
Usage	423,299 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LL9644
MLS Number	13140951
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

24 3

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP, Automatic

Recently Updated

$34,900 USD

15 Available, Fleet maintained, Stock LL9611, Miles 516,925, Automatic, Detroit DD13, 450 HP, Air Slide 5th, Inter-Axle Lock, Air Suspension Dump, Ratio 3.08, WB 180, CD player, Power...

Condition	Used
Usage	516,925 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LL9611
MLS Number	13140928
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

19 2

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP, Automatic

Recently Updated

$36,900 USD

Fleet Maintained, Stock LL9567, Miles 463,500, DD13, 450 HP, DT 12 Automatic, 3.08 Ratio, 180" WB, Cruise, Tilt/Tele, Air slide 5TH, Dual Air Ride Seats, Power Windows/Mirrors, Inter axel...

Condition	Used
Usage	463,500 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LL9567
MLS Number	13140919
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(833) 904-___ SHOW
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25 1

2016 Freightliner Cascadia 125 Day Cab Truck - Detroit 434HP, 12 Speed Amt

Newly Listed

$27,500 USD

2016 Freightliner Cascadia, 434hp Detroit DD13, 12spd Auto, 443k Mi, Nationwide Delivery Available,

Condition	Used
Usage	441,000 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	434 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	6052
MLS Number	13376265
Category	Day Cab Semi Trucks
Last Updated	2/1/2025
Location	Sawyer, KS, US
Sold By	The Wrays, LLC

(844) 900-___ SHOW
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44 1

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 68" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Automatic

Recently Updated

$57,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 SPEED AUTOMATIC!!! DEF, ENGINE BRAKE, SLIDING 5TH WHEEL, MINI FRIDGE, POWER WINDOWS, SIDE AND FULL FAIRINGS Se Habla...

Condition	Used
Usage	492,385 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	68"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.16 ratio
Stock Number	B03265-DELIVERY 2 U
MLS Number	13266760
Category	Sleeper Semi Trucks
Last Updated	2/1/2025
Location	Bakersfield, CA, US
Sold By	Diamond Truck Sales Inc

(844) 900-___ SHOW
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54 1

2018 Freightliner Cascadia 113 Sleeper Semi Truck - 57" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Recently Updated

$33,900 USD

*** 8 NEW TIRES!!! *** *** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 10 speed!!! DEF, SLIDING 5TH WHEEL, ENGINE BRAKE, TRAILER BRAKE COLLISION MITIGATION Se Habla Español!...

Condition	Used
Usage	684,356 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	58"
Rear Axle	Tandem Axle
Rear End	3.07 ratio
Stock Number	L03055-8 NEW TIRES
MLS Number	13104480
Category	Sleeper Semi Trucks
Last Updated	2/1/2025
Location	Fontana, CA, US
Sold By	Diamond Truck Sales Inc

(844) 900-___ SHOW
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16 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 68" Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

Newly Listed

$53,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC 12 SPEED!!! DEF, ENGINE BRAKE, ATC SPIN, LDW OFF, OVER RIDE ENG SHDN, HSA OFF, PTO ( TYPE: E), SLIDE AIR LOCK Se...

Condition	Used
Usage	624,424 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	68"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	B03368-DELIVERY 2 U
MLS Number	13372756
Category	Sleeper Semi Trucks
Last Updated	1/30/2025
Location	Bakersfield, CA, US
Sold By	Diamond Truck Sales Inc

(833) 801-___ SHOW
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5 0

2017 Western Star 5700XE Day Cab Truck - Detroit 400HP, 12 Speed Dt12 Amt

Recently Updated

$20,000 USD

NICE TRUCK, RUNS EXCELLENT, CLEAN, AIR SEATS, POWER RIGHT WINDOW, TILT/TELE, CRUISE, FULL LOCKING REARS, SLIDING 5TH WHEEL, DUMP VALVE!,

Condition	Used
Usage	527,580 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	17DET527WSDC
MLS Number	13303856
Category	Day Cab Semi Trucks
Last Updated	1/30/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

15 0

2017 Freightliner Cascadia 125 Sleeper Semi Truck - Mid Roof Sleeper, Detroit, Automatic

Recently Updated

$18,750 USD

If interested please call! Stock#: 14248 Located in Caddo Mills, TX (Just an hour east of downtown Dallas) Ask about our 5% Military/First Responder Discount (Only on select equipment)...

Condition	Used
Usage	801,065 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14248
MLS Number	13215448
Category	Sleeper Semi Trucks
Last Updated	1/30/2025
Location	Caddo Mills, TX, US
Sold By	Roy's Trucks and Equipment Inc

(844) 912-___ SHOW
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4 0

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

Newly Listed

$56,900 USD

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

Condition	Used
Usage	473,786 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	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.16 ratio
Stock Number	F02474-DELIVERY2U
MLS Number	13370076
Category	Sleeper Semi Trucks
Last Updated	1/31/2025
Location	Fort Worth, TX, US
Sold By	Diamond Truck Sales Inc

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3 0

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

Newly Listed

$56,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC 12 SPEED!!! ENGINE BRAKE, DEF, SLEEPER WINDOW, SLIDING 5TH WHEEL, Se Habla Español! NO CREDIT? BAD CREDIT? NO...

Condition	Used
Usage	493,638 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	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.16 ratio
Stock Number	F02471-DELIVERY2U
MLS Number	13369761
Category	Sleeper Semi Trucks
Last Updated	1/31/2025
Location	Fort Worth, TX, US
Sold By	Diamond Truck Sales Inc

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30 0

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

Newly Listed

$47,900 USD

568955 Miles, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, Drive: 6x4, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 72, Wheel Base: 227, Tandem Rear Axles,...

Condition	Used
Usage	568,955 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 2.28 ratio
Stock Number	260467
MLS Number	13367680
Category	Sleeper Semi Trucks
Last Updated	1/28/2025
Location	Tampa, FL, US
Sold By	Southport Truck Group

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33 0

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

Newly Listed

$54,900 USD

Thermoking APU, 10 new virgin tires, very nice truck stock: 260036, transmodel: DT12, cab type: Sleeper, engine type: DD15, dualbreathers: 0, dualexhaust: 0,

Condition	Used
Usage	564,000 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 2.28 ratio
Stock Number	260036
MLS Number	13367679
Category	Sleeper Semi Trucks
Last Updated	1/28/2025
Location	Tampa, FL, US
Sold By	Southport Truck Group

(844) 912-___ SHOW
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4 0

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

Newly Listed

$59,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC 12 SPEED!!!, DEF, SLEEPER WINDOW, SLIDING 5TH WHEEL, Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7...

Condition	Used
Usage	471,114 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	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	F02470-DELIVERY2U
MLS Number	13367525
Category	Sleeper Semi Trucks
Last Updated	1/28/2025
Location	Fort Worth, TX, US
Sold By	Diamond Truck Sales Inc

40 1

2017 Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Ultrashift Automatic

Newly Listed

$29,500 USD

10 New Virgin tires and wheels (24.5), Fleet Maintained, Stock HT9619, Fresh DOT, Runs/Drives Good, DD13 455 HP, Automatic, 508,602 Miles, Collision Mitigation, Dual air ride seats, Inter...

Condition	Used
Usage	508,602 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Ultrashift Automatic
Rear Axle	Tandem Axle
Stock Number	HT9619
MLS Number	13367449
Category	Day Cab Semi Trucks
Last Updated	2/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

24 3

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt

Newly Listed

$34,900 USD

15 Available, Fleet maintained, Stock LL9611, Miles 516,925, Automatic, Detroit DD13, 450 HP, Air Slide 5th, Inter-Axle Lock, Air Suspension Dump, Ratio 3.08, WB 180, CD player, Power...

Condition	Used
Usage	516,925 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	LL9611
MLS Number	13367447
Category	Day Cab Semi Trucks
Last Updated	1/28/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

14 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

Price Drop

$36,995 USD

If interested please call!, Stock#: 14393 Located in Caddo Mills, TX (Just an hour east of downtown Dallas) Ask about our 5% Military/First Responder Discount (Only on select equipment) ,...

Condition	Used
Usage	363,819 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14393
MLS Number	12815676
Category	Day Cab Semi Trucks
Last Updated	1/28/2025
Location	Caddo Mills, TX, US
Sold By	Roy's Trucks and Equipment Inc

15 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

Price Drop

$36,995 USD

If interested please call!, Stock#: 14396 Located in Caddo Mills, TX (Just an hour east of downtown Dallas) Ask about our 5% Military/First Responder Discount (Only on select equipment)...

Condition	Used
Usage	360,634 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14396
MLS Number	12815553
Category	Day Cab Semi Trucks
Last Updated	1/28/2025
Location	Caddo Mills, TX, US
Sold By	Roy's Trucks and Equipment Inc

14 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

Price Drop

$36,995 USD

If interested please call!, Stock#: 14403 Located in Caddo Mills, TX (Just an hour east of downtown Dallas) Ask about our 5% Military/First Responder Discount (Only on select equipment)...

Condition	Used
Usage	329,479 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14403
MLS Number	12815162
Category	Day Cab Semi Trucks
Last Updated	1/28/2025
Location	Caddo Mills, TX, US
Sold By	Roy's Trucks and Equipment Inc