12 Speed Automatic Trucks For Sale

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

$54,900 USD

FACTORY WARRANTY ACTIVE 500K MILES OR 5 YEARS✅ , Well Maintained Fleet Truck ✅ , Fully Serviced ✅ , Road Ready ✅, Direct Call to Sales!!, David, Ana,

Condition	Used
Usage	418,130 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.28 ratio
Stock Number	LP5768
MLS Number	12686085
Category	Sleeper Semi Trucks
Last Updated	2/3/2026
Location	Edinburg, TX, US
Sold By	DeLucio USA

(833) 627-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - Mid Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Automatic

$54,900 USD

FACTORY WARRANTY ACTIVE 500K MILES OR 5 YEARS✅ , Well Maintained Fleet Truck ✅ , Fully Serviced ✅ , Road Ready ✅ Direct Call to Sales!!, David, Ana,

Condition	Used
Usage	423,375 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.28 ratio
Stock Number	LP5889
MLS Number	12686087
Category	Sleeper Semi Trucks
Last Updated	2/3/2026
Location	Edinburg, TX, US
Sold By	DeLucio USA

2021 Freightliner Cascadia 116 Day Cab Truck - 450HP, 12 Speed Automatic

Price Drop $36,000 USD

Used 2021 Freightliner Cascadia 116 Day Cab for sale, 592,803 miles, 450HP DD13 diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension, 160-gallon fuel...

Condition	Used
Usage	605,117 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	389039
MLS Number	13410284
Category	Day Cab Semi Trucks
Last Updated	2/6/2026
Location	Baton Rouge, LA, US
Sold By	Penske Used Trucks

(713) 532-___ SHOW
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2024 Peterbilt 579 Day Cab Truck - Paccar 455HP, 12 Speed Automatic

Contact for price

2024 Peterbilt 579 Day Cab Truck-Tractor – Low Miles, Like New This 2024 Peterbilt 579 Day Cab is fleet-maintained, exceptionally clean, and ready to go to work. Powered by a 455 HP PACCAR...

Quantity	21
Condition	New
Usage	419 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb
Stock Number	#2691
MLS Number	14120291
Category	Day Cab Semi Trucks
Last Updated	2/4/2026
Location	Humble, TX, US
Sold By	TCI Transportation

(323) 712-___ SHOW
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2024 Peterbilt 579 Day Cab Truck - Paccar 455HP, 12 Speed Automatic

Contact for price

2024 Peterbilt 579 Day Cab Truck-Tractor – Low Miles, Like New This 2024 Peterbilt 579 Day Cab is fleet-maintained, exceptionally clean, and ready to go to work. Powered by a 455 HP PACCAR...

Quantity	21
Condition	New
Usage	419 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb
Stock Number	#2691
MLS Number	14120289
Category	Day Cab Semi Trucks
Last Updated	2/4/2026
Location	Los Angeles, CA, US
Sold By	TCI Transportation

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop $53,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 554,821 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	554,855 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	394508
MLS Number	13885410
Category	Sleeper Semi Trucks
Last Updated	2/6/2026
Location	Mount Juliet, TN, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$57,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 558,808 miles, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	558,808 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	394357
MLS Number	14099842
Category	Sleeper Semi Trucks
Last Updated	2/6/2026
Location	Kansas City, MO, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$66,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, tandem rear axle, 72" integral sleeper, 410,508 miles....

Condition	Used
Usage	410,517 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	394270
MLS Number	13769849
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Rockville, MD, US
Sold By	Penske Used Trucks

(855) 370-___ SHOW
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2021 Peterbilt 579 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

$57,900 USD

2021 Peterbilt 579 Tandem Axle Day Cab, Cummins X15 450HP Engine, Automatic 12 Spd Eaton EEO-17F112C Transmission, Air Ride Suspension, 53,200 GVW, 13,200# MFS-13 Front Axle, 40,000# Meritor...

Condition	Used
Usage	9,354 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X12
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	21PB009
MLS Number	14120247
Category	Day Cab Semi Trucks
Last Updated	1/31/2026
Location	Sioux Falls, SD, US
Sold By	Vander Haag's Inc.

(855) 807-___ SHOW
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2021 International LT Dump Truck - Cummins 450HP, 12 Speed Endurant Automatic

$54,500 USD

FLEET MAINTAINED INTERNATIONAL LT 625, CUMMINS X15, 450HP, 12 SPEED EATON ENDURANT TRANSMISSION, NEW 13' X 56" DUMP BED, NEW PTO, TANK, TARP, 18 CU YARD CAPACITY, 2.79 RATIOS, NEW...

Quantity	8
Condition	Used
Usage	375,545 Miles
Duty Class	Heavy Duty Dump 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	40,000 lb 2.79 ratio
Stock Number	7144
MLS Number	14120242
Category	Dump Trucks
Last Updated	1/31/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

2022 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

$80,750 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 407,071 miles, 455HP D13 diesel engine, 12-speed automatic Volvo transmission, 70" integral sleeper, 225-gallon fuel capacity, tandem...

Condition	Used
Usage	407,072 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	387155
MLS Number	13781832
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	La Mirada, CA, US
Sold By	Penske Used Trucks

2022 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop $56,250 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 553,915 miles, 455HP D13 diesel engine, 12-speed automatic transmission, 70" integral sleeper, tandem rear axle, air ride suspension....

Condition	Used
Usage	553,915 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	387108
MLS Number	14120179
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Medina, OH, US
Sold By	Penske Used Trucks

2022 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

$79,750 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 455 HP D13 diesel engine, 12-speed automatic transmission, 70" integral sleeper, air ride suspension, tandem rear axle, 225-gallon fuel...

Condition	Used
Usage	399,898 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	386981
MLS Number	14120171
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Pensacola, FL, US
Sold By	Penske Used Trucks

(844) 624-___ SHOW
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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 is well-optioned and built for long-haul efficiency and driver comfort. Standout features include chicken lights, a full gauge...

Condition	Used
Usage	480,000 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	CO11127
MLS Number	14120120
Category	Sleeper Semi Trucks
Last Updated	2/5/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(844) 624-___ SHOW
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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	426,000 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	1/31/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

(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	426,000 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	14120116
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

2021 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop $67,750 USD

Used 2021 Volvo VNL64760 Sleeper Semi Truck, 429,734 miles, 455HP D13 diesel engine, 12-speed automatic Volvo transmission, 70" integral sleeper, tandem rear axle, air ride suspension. See...

Condition	Used
Usage	439,988 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	380251
MLS Number	13671231
Category	Sleeper Semi Trucks
Last Updated	2/6/2026
Location	Zanesville, OH, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Day Cab Truck - 435HP, 12 Speed Automatic

$43,000 USD

Used 2021 Freightliner Cascadia 126 Day Cab Truck, 435HP DD13 diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, 12,000 lb front axle, 40,000 lb rear axle, air ride...

Condition	Used
Usage	476,034 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	382876
MLS Number	13843338
Category	Day Cab Semi Trucks
Last Updated	2/6/2026
Location	Elmira, NY, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Day Cab Truck - 435HP, 12 Speed Automatic

Price Drop $53,250 USD

Used 2021 Freightliner Cascadia 126 Day Cab Truck for sale, 311,325 miles, 435 HP DD13 diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension, 16,000...

Condition	Used
Usage	323,458 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	382825
MLS Number	13854108
Category	Day Cab Semi Trucks
Last Updated	1/31/2026
Location	Albany, NY, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Day Cab Truck - 435HP, 12 Speed Automatic

$58,500 USD

Used 2021 Freightliner Cascadia 126 Day Cab Truck for sale, 331,275 miles, 435 HP DD13 diesel engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension. Check it...

Condition	Used
Usage	331,275 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	382781
MLS Number	14120022
Category	Day Cab Semi Trucks
Last Updated	1/31/2026
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

2021 Freightliner Cascadia 126 Day Cab Truck - 435HP, 12 Speed Automatic

$63,500 USD

Used 2021 Freightliner Cascadia 126 Day Cab Truck, 247,284 miles, 435HP DD13 diesel engine, 12-speed Detroit automatic transmission, 12,000 lbs front axle, 40,000 lbs tandem rear axle. Check...

Condition	Used
Usage	247,285 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	382779
MLS Number	14096363
Category	Day Cab Semi Trucks
Last Updated	1/31/2026
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$62,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck with 72" Integral Sleeper, 455HP DD15AT engine, 12-speed Detroit automatic transmission, tandem rear axle, air ride suspension, and 220...

Condition	Used
Usage	529,453 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	385524
MLS Number	13865273
Category	Sleeper Semi Trucks
Last Updated	2/6/2026
Location	Monmouth Junction, NJ, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$66,000 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck, 565,632 miles, 455HP DD15AT engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	565,632 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	385361
MLS Number	14074827
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Fontana, CA, US
Sold By	Penske Used Trucks

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$51,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride suspension....

Condition	Used
Usage	594,451 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 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 3.08 ratio
Stock Number	385337
MLS Number	13332058
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Chattanooga, TN, US
Sold By	Penske Used Trucks