New Diesel 12 Speed Trucks For Sale

36 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP

Newly Listed

$154,900 USD

****2025****NEW***FREIGHTLINER CASCADIA 126 SLEEPER, DETROIT DD15 ENGINE WITH 475 HP, DETROIT DT12 AUTOMATED MANUAL TRANSMISSION, DUAL 130G TANKS, 2.85 REAR. **PRICE DOES NOT INCLUDE FET,...

Condition	New
Usage	84 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	256357
MLS Number	13133574
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Tampa, FL, US
Sold By	Southport Truck Group

36 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP

Newly Listed

$154,900 USD

****2025****NEW***FREIGHTLINER CASCADIA 126 SLEEPER, DETROIT DD15 ENGINE WITH 475 HP, DETROIT DT12 AUTOMATED MANUAL TRANSMISSION, DUAL 130G TANKS, 2.85 REAR. **PRICE DOES NOT INCLUDE FET,...

Condition	New
Usage	88 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	256358
MLS Number	13133573
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Tampa, FL, US
Sold By	Southport Truck Group

36 0

2025 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 475HP

Newly Listed

$154,900 USD

****2025****NEW***FREIGHTLINER CASCADIA 126 SLEEPER, DETROIT DD15 ENGINE WITH 475 HP, DETROIT DT12 AUTOMATED MANUAL TRANSMISSION, DUAL 130G TANKS, 2.85 REAR stock: 256353, transmodel:...

Condition	New
Usage	1,694 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	256353
MLS Number	13133566
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Tampa, FL, US
Sold By	Southport Truck Group

38 0

2025 Western Star 57X Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 505HP

Newly Listed

Call for price

New Western Star 57x, DD15 DT12 transmission, 505 hp, upgraded interior with all LCD screens for gauges, super nice truck stock: 252459, transmodel: DT12-1750-OH, engine type: DD15,...

Condition	New
Usage	2,806 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	252459
MLS Number	13133475
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Tampa, FL, US
Sold By	Southport Truck Group

(833) 970-___ SHOW
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5 0

2025 Peterbilt 589 Sleeper Semi Truck - 72" Flat Top Sleeper, Cummins 500HP, 12 Speed Amt

Newly Listed

Call for price

Brand new 2025 Peterbilt 589,

Condition	New
Usage	36 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x2
Transmission	12 Speed Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	72"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.36 ratio
Stock Number	273354
MLS Number	13133348
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Lancaster, PA, US
Sold By	Hunter Truck

(833) 932-___ SHOW
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20 0

2025 FREIGHTLINER CASCADIA 126 72" Raised Roof Double Bunk Sleeper

2025 Western Star 49X Day Cab Truck - Detroit 560HP, 12 Speed Dt12 Amt

Call for price

Beautiful NEW Western Star 49XDC!! Heavy spec tractor, wet kit ready. Detroit DD16 560HP/2050TQ, Detroit DT12 Vocational trans, 46K rears on air, 24.5 rubber and 13300lb steer. Truck is...

Condition	New
Usage	64 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	560 HP
Engine Model	Detroit DD16
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	46,000 lb 3.42 ratio
Stock Number	WS4891
MLS Number	13130055
Category	Day Cab Semi Trucks
Last Updated	9/21/2024
Location	Westbrook, ME, US
Sold By	Freightliner of Maine

(855) 300-___ SHOW
NUMBERCall Seller

16 0

2024 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 475HP, 12 Speed Dt12 Amt

$123,200 USD

Clean Title! 12% FET is included in the sale price. We are selling a 2024 Freightliner Cascadia with 7 miles on it. This truck has a 475 HP Detroit DD15, DT12 transmission, and 3.08 gears...

Condition	New
Usage	7 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Suspension	AirLiner
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	84353
MLS Number	13129257
Category	Sleeper Semi Trucks
Last Updated	9/25/2024
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

28 0

2024 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

$164,900 USD

Available now for immediate delivery! New Kenworth T680 with Cummins X15 Efficiency Series, 500 hp, 1,650 lb.ft., Eaton Endurant (EEO16F112C) 12-speed automated transmission, 12,350# front,...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	KFJ347923
MLS Number	12885914
Category	Sleeper Semi Trucks
Last Updated	9/21/2024
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks

28 0

2024 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

$164,900 USD

Available now for immediate delivery! New Kenworth T680 with Cummins X15 Efficiency Series, 500 hp, 1,650 lb.ft., Eaton Endurant (EEO16F112C) 12-speed automated transmission, 12,350# front,...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	KF347922
MLS Number	12885910
Category	Sleeper Semi Trucks
Last Updated	9/21/2024
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks

29 0

2024 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

$164,900 USD

Available now for immediate delivery. New 2024 Kenworth T680 with 76" raised roof sleeper, Cummins X15 Efficiency Series engine rated at 500 horsepower, Eaton Endurant 12-Speed automated...

Condition	New
Usage	250 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	76"
Suspension	AG 400
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	KF369772
MLS Number	12768701
Category	Sleeper Semi Trucks
Last Updated	9/21/2024
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

24 0

2024 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

$164,900 USD

Available now for immediate delivery. New 2024 Kenworth T680 with 76" raised roof sleeper, Cummins X15 Efficiency Series engine rated at 500 horsepower, Eaton EEO16F112C Endurant 12-Speed...

Condition	New
Usage	250 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	76"
Suspension	AG 400
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	KF360365
MLS Number	12768696
Category	Sleeper Semi Trucks
Last Updated	9/21/2024
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

28 0

2025 Kenworth T680 Day Cab Truck - Cummins 400HP

$169,995 USD

2025 T680 Engine: Cummins X15 470V, 470 hp @ 1900 RPM, 1750 lb.ft. @ 900 RPM, Productivity Series, equipped with Jacobs engine brake Transmission: Eaton Endurant EEO17F112C, 12-speed Front...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	470 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	KF129205
MLS Number	12675184
Category	Day Cab Semi Trucks
Last Updated	9/20/2024
Location	Naples, FL, US
Sold By	All Roads Trucks

4 0

2025 International LT Day Cab Truck - Cummins 450HP

$147,900 USD

Engine: CUMMINS, 450 HP, Fuel Type: Diesel, Drive: 6x4, Air Ride Suspension, Wheel Base: 179, Tandem Rear Axles, Front Axle Weight: 12350 lb, Rear Axle Weight: 40000 lb

Condition	New
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	334129
MLS Number	13081918
Category	Day Cab Semi Trucks
Last Updated	9/18/2024
Location	Langhorne, PA, US
Sold By	Allegiance Trucks

4 0

2025 International LT Day Cab Truck - Cummins 450HP

$147,900 USD

Engine: CUMMINS, 450 HP, Fuel Type: Diesel, Drive: 6x4, Air Ride Suspension, Wheel Base: 179, Tandem Rear Axles, Front Axle Weight: 12350 lb, Rear Axle Weight: 40000 lb

Condition	New
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	334131
MLS Number	13081917
Category	Day Cab Semi Trucks
Last Updated	9/18/2024
Location	Langhorne, PA, US
Sold By	Allegiance Trucks

4 0

2025 International LT Day Cab Truck - Cummins 450HP

$147,900 USD

2265 Miles, Engine: CUMMINS, 450 HP, Fuel Type: Diesel, Drive: 6x4, Air Ride Suspension, Wheel Base: 179, Tandem Rear Axles, Front Axle Weight: 12350 lb, Rear Axle Weight: 40000 lb

Condition	New
Usage	2,265 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	334064
MLS Number	13081916
Category	Day Cab Semi Trucks
Last Updated	9/20/2024
Location	Langhorne, PA, US
Sold By	Allegiance Trucks

4 0

2025 International LT Day Cab Truck - Cummins 450HP

$147,900 USD

Engine: CUMMINS, 450 HP, Fuel Type: Diesel, Drive: 6x4, Air Ride Suspension, Wheel Base: 179, Tandem Rear Axles, Front Axle Weight: 12350 lb, Rear Axle Weight: 40000 lb

Condition	New
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	334130
MLS Number	13081915
Category	Day Cab Semi Trucks
Last Updated	9/18/2024
Location	Langhorne, PA, US
Sold By	Allegiance Trucks

6 0

2024 International LT Sleeper Semi Truck - A26

$134,900 USD

2203 Miles, Engine: INTERNATIONAL A26, 450 HP, Fuel Type: Diesel, 12 Speed Automatic Transmission, Drive: 6x4, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 73, Wheel...

Condition	New
Usage	2,203 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	International A26
Drivetrain	6x4
Transmission	12 Speed Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	325962
MLS Number	12962634
Category	Sleeper Semi Trucks
Last Updated	9/18/2024
Location	Liverpool, NY, US
Sold By	Allegiance Trucks

(833) 970-___ SHOW
NUMBERCall Seller

11 0

2024 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 500HP

Price Reduced

$187,500 USD

**CARB Engine Compliant** NEW 2024 Peterbilt 579 Ultraloft W/80" Bunk, Cummins X15 Engine 500 HP with 1850 Torque, Factory Installed APU, Eaton-Fuller 12 speed Automated Transmission, 240"...

Condition	New
Usage	1,397 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	257549
MLS Number	12262038
Category	Sleeper Semi Trucks
Last Updated	9/24/2024
Location	Eau Claire, PA, US
Sold By	Hunter Truck

25 0

2025 Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

$165,000 USD

Model Year: 2025 Kenworth T680 Next Gen, Engine: Cummins X15 Productivity Series, 500 horsepower @ 1900 RPM, 1650 lb-ft torque @ 900 RPM, Transmission: Eaton Endurant EEO16F112C 12-speed...

Condition	New
Usage	444 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 400
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.42 ratio
Stock Number	KN126722
MLS Number	13043519
Category	Day Cab Semi Trucks
Last Updated	9/11/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

21 0

2025 Kenworth T880 Day Cab Truck - Paccar 510HP, 12 Speed Autoshift Amt

$152,000 USD

Model Year: 2025 Kenworth T880, Engine: PACCAR MX-13, 510 horsepower @ 1600 RPM, 1850 lb-ft torque @ 1000 RPM, with engine brake, Transmission: PACCAR TX-12 PO18F112C, 12-speed automated,...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Autoshift Automated
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Stock Number	KN131169
MLS Number	13043508
Category	Day Cab Semi Trucks
Last Updated	9/11/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

23 0

2025 Kenworth T880 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

$152,000 USD

Model Year: 2025, Model: Kenworth T880, VIN: 1XKZD49X9SJ133618, Exterior Color: White (L0006EY), Interior: Vantage Daycab in Slate Gray Engine Transmission Engine: Cummins X15 500V...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 400L
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.70 ratio
Stock Number	KN133618
MLS Number	13042972
Category	Day Cab Semi Trucks
Last Updated	9/11/2024
Location	Mardela Springs, MD, US
Sold By	All Roads Trucks

30 0

2025 Kenworth T880 Day Cab Truck - Cummins 450HP, 12 Speed Endurant Automatic

$154,900 USD

New 2025 Kenworth T880 Cummins X15 450 hp engine, Efficiency Series, 1650 lb-ft torque, Eaton Endurant EEO16F112C 12-speed automated transmission, Front axle: Meritor MFS12E Plus, 12,500 lbs...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb 3.42 ratio
Stock Number	KF129801
MLS Number	12766445
Category	Day Cab Semi Trucks
Last Updated	9/11/2024
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks

30 0

2025 Kenworth T880 Day Cab Truck - Cummins 450HP, 12 Speed Endurant Automatic

$154,900 USD

New 2025 Kenworth T880 Cummins X15 450 hp engine, Efficiency Series, 1650 lb-ft torque, Eaton Endurant EEO16F112C 12-speed automated transmission, Front axle: Meritor MFS12E Plus, 12,500 lbs...

Condition	New
Usage	250 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb 3.42 ratio
Stock Number	KF129815
MLS Number	12766370
Category	Day Cab Semi Trucks
Last Updated	9/11/2024
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks