Used 12 Speed Trucks For Sale

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2021 Kenworth T680 4800 Gallon Gasoline / Fuel Truck - Paccar 400HP, 12 Speed Amt

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2021 KENWORTH 680 4800 Gallon 3-AXLE BULK TANK TRUCK, 2021 KENWORTH T680 3-AXLE, MX11 (400 HP), Engine Brake, Paccar PO-16F112C Automatic Transmission, Meritor MP40-14X3 38,000# Dual Drive...

Condition	Used
Usage	13,350 Hours
Duty Class	Heavy Duty Gasoline / Fuel Truck
Horse Power	400 HP
Engine Model	Paccar MX-11
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb 3.55 ratio
Capacity	4800 Gallons
Stock Number	E18549
MLS Number	14096654
Category	Gasoline / Fuel Trucks
Last Updated	1/17/2026
Location	Healdsburg, CA, US
Sold By	Opperman & Son, Inc.

2020 International LT625 Day Cab Truck - 400HP, 12 Speed Automatic

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$32,750 USD

Used 2020 International LT625 Day Cab Truck, 400HP A26 diesel engine, 12 speed Eaton automatic transmission, tandem rear axle, air ride suspension, 160-gallon fuel capacity. Check it out.

Condition	Used
Usage	297,985 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	A26
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	718607
MLS Number	14034255
Category	Day Cab Semi Trucks
Last Updated	2/11/2026
Location	Rockwall, TX, US
Sold By	Penske Used Trucks

2016 Mack Pinnacle CXU613 Tandem Axle Yard Spotter Truck - MP7, 325HP, 12 Speed Automatic

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$15,000 USD

Used 2016 Mack Pinnacle CXU613 Yard Spotter Truck for sale, 436,850 miles, MP7 Diesel engine, 325 HP, 12-speed automatic transmission, tandem rear axle, air ride suspension, 150-gallon fuel...

Condition	Used
Usage	436,850 Miles
Duty Class	Heavy Duty Yard Spotter Truck
Horse Power	325 HP
Engine Model	Mack MP7
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	22,700 lb 3.55 ratio
Stock Number	718067
MLS Number	13504503
Category	Yard Spotter Trucks
Last Updated	2/11/2026
Location	New Bedford, MA, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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$90,250 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 337,215 miles, 455 HP DD15AT engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	342,292 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	263369
MLS Number	14097117
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Hazelwood, MO, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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$73,000 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 573,591 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed automatic Detroit transmission, tandem rear axle,...

Condition	Used
Usage	577,498 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	202083
MLS Number	14064530
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Torrance, CA, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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$54,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 503,633 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, air ride...

Condition	Used
Usage	505,783 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236421
MLS Number	14097111
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Fredonia, NY, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$45,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 627,797 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, air ride...

Condition	Used
Usage	627,797 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236405
MLS Number	14137359
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Atlanta, GA, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$52,000 USD

Used 2023 International LT625 Sleeper Semi Truck with 450 HP Cummins X15 engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride suspension, 280 gal...

Condition	Used
Usage	559,712 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236403
MLS Number	14137357
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Atlanta, GA, US
Sold By	Penske Used Trucks

2024 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$65,500 USD

Used 2024 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins 450HP X15 diesel engine, Eaton 12-speed automatic transmission, tandem rear axle, air ride suspension, 238...

Condition	Used
Usage	516,667 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236373
MLS Number	14137355
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Moberly, MO, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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Used 2023 International LT625 Sleeper Semi Truck for sale, 669,720 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	669,720 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236305
MLS Number	14137354
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Poplar Bluff, MO, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$45,250 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 602,400 miles, 450 HP Cummins X15 engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle. Check it...

Condition	Used
Usage	602,400 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236286
MLS Number	14137351
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Brooklyn Park, MN, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$40,750 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 666,870 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, 280-gallon fuel...

Condition	Used
Usage	666,870 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236239
MLS Number	14137348
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Des Moines, IA, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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$41,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 672,327 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	672,334 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235816
MLS Number	14094688
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$45,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 632,494 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	632,494 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235799
MLS Number	14137343
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$46,500 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 623,360 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	623,360 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235787
MLS Number	14137341
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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$72,250 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 313,728 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, 280-gallon fuel...

Condition	Used
Usage	324,733 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235779
MLS Number	14044102
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Jessup, MD, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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$55,250 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 504,032 miles, 450 HP Cummins X15 engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	511,346 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235719
MLS Number	14097101
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Asheville, NC, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

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Used 2023 International LT625 Sleeper Semi Truck for sale, 784,533 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	784,533 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235710
MLS Number	14137338
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Harrisburg, PA, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Newly Listed

$43,750 USD

Used 2023 International LT625 Sleeper Semi Truck with 73" Integral Sleeper, Cummins X15 diesel engine, 450 HP, 12-speed Eaton automatic transmission, tandem rear axle, 280-gallon fuel...

Condition	Used
Usage	676,665 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP236054
MLS Number	14137333
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Torrance, CA, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

Newly Listed

$45,000 USD

554101 Miles, Engine: DETROIT DD13, 450 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Tandem Rear Axles

Condition	Used
Usage	554,101 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Rear Axle	Tandem Axle
Stock Number	L21326
MLS Number	14137301
Category	Day Cab Semi Trucks
Last Updated	2/11/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

2023 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

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$86,250 USD

Used 2023 Volvo VNL64760 Sleeper Semi Truck, 353,789 miles, 455HP D13 diesel engine, 12-speed automatic Volvo transmission, 70" integral sleeper, tandem rear axle, air ride suspension. See...

Condition	Used
Usage	354,616 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	176242
MLS Number	13879462
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Earth City, MO, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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$51,000 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 724,261 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	724,323 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	185885
MLS Number	14105609
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Sturtevant, WI, US
Sold By	Penske Used Trucks

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 576,387 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	576,387 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	185881
MLS Number	14137285
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Sturtevant, WI, US
Sold By	Penske Used Trucks

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

Newly Listed

$46,950 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	483,186 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	3570
MLS Number	14137282
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC