Diesel 12 Speed Sleeper Semi Trucks For Sale

726 - 750 of 2,481 listings

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop $55,000 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck, 524,726 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	524,726 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	373489
MLS Number	14110995
Category	Sleeper Semi Trucks
Last Updated	1/29/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

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2023 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

$84,950 USD

MULTIPLE NEXTGEN BODY STYLE MATCHING VIRGIN DRIVE TIRES, DIESEL APU, 2023 Kenworth T680 with 450HP Cummins X15 and Endurant 12-speed automatic. 76" raised roof double bunk sleeper with...

Condition	Used
Usage	334,953 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MONSTOCK
MLS Number	14025127
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Kansas City, MO, US
Sold By	Michelle Sells Trucks

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2023 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

$84,950 USD

MULTIPLE NEXTGEN BODY STYLE MATCHING VIRGIN DRIVE TIRES, DIESEL APU, 2023 Kenworth T680 with 450HP Cummins X15 and Endurant 12-speed automatic. 76" raised roof double bunk sleeper with...

Condition	Used
Usage	334,953 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CONSTOCK
MLS Number	14025126
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

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

$53,300 USD

Several Available!, Fresh DOT, Full 128 Point Inspection, 525,063 Miles, DD15 Detroit, 455 HP, DT12 HD Automated, Double Bunk Condo, Electric APU, Super Singles - can switch out for duals...

Condition	Used
Usage	525,063 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
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	LY5961
MLS Number	13916441
Category	Sleeper Semi Trucks
Last Updated	1/27/2026
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

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2020 Freightliner Cascadia 113 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$34,750 USD

Used 2020 Freightliner Cascadia 113 Sleeper Semi Truck for sale, 676,665 miles, 450 HP DD13 diesel engine, 72" integral sleeper, 12-speed automatic transmission, tandem rear axle, air ride...

Condition	Used
Usage	681,614 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.23 ratio
Stock Number	352662
MLS Number	14091774
Category	Sleeper Semi Trucks
Last Updated	1/30/2026
Location	Elkhart, IN, US
Sold By	Penske Used Trucks

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2020 Volvo VNL64760 Sleeper Semi Truck - 70" Integral Sleeper, 455HP, 12 Speed Automatic

$52,250 USD

Used 2020 Volvo VNL64760 Sleeper Semi Truck for sale, 618,068 miles, 455HP D13 TC engine, 12-speed automatic transmission, 70" integral sleeper, tandem rear axle, air ride suspension. Check...

Condition	Used
Usage	625,527 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	D13 TC
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	348476
MLS Number	14110861
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Harrisburg, PA, US
Sold By	Penske Used Trucks

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2020 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$40,250 USD

Used 2020 Freightliner Cascadia 125 Sleeper Semi Truck for sale, 635,796 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle....

Condition	Used
Usage	635,796 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	278288
MLS Number	14110839
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Cleveland, TN, US
Sold By	Penske Used Trucks

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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$42,750 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck with 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, air ride suspension, tandem rear axle....

Condition	Used
Usage	674,583 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 2.41 ratio
Stock Number	283616
MLS Number	14110836
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Belcamp, MD, US
Sold By	Penske Used Trucks

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2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop $56,000 USD

Used 2019 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 540,465 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	540,465 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	238152
MLS Number	14110809
Category	Sleeper Semi Trucks
Last Updated	1/29/2026
Location	Fontana, CA, US
Sold By	Penske Used Trucks

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2019 Freightliner Cascadia 113 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$39,750 USD

Used 2019 Freightliner Cascadia 113 Sleeper Semi Truck for sale, 588,001 miles, 450HP DD13 diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle, air...

Condition	Used
Usage	588,001 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
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	244799
MLS Number	14110761
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Mount Hope, OH, US
Sold By	Penske Used Trucks

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2019 Freightliner Cascadia 113 Sleeper Semi Truck - Detroit 450HP

$34,950 USD

FOR SALE 2019 FREIGHTLINER 113 Sleeper FRESH PM JUST DONE! New Brakes and Rotors! Comes equipped with a Detroit DD13 450 HP and a Detroit DT12 transmission 12 speed ONLY 470,104 MILES NEW...

Condition	Used
Usage	470,776 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD13
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Mid Roof Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	MO10644
MLS Number	13778194
Category	Sleeper Semi Trucks
Last Updated	2/1/2026
Location	Commerce City, CO, US
Sold By	Michelle Sells Trucks

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2019 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$58,750 USD

Used 2019 Freightliner Cascadia 125 Sleeper Semi Truck with 381,429 miles, 450HP DD13 diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle. Check it...

Condition	Used
Usage	381,430 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.23 ratio
Stock Number	305028
MLS Number	14071465
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Lacey, WA, US
Sold By	Penske Used Trucks

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

$44,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 646,496 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	646,946 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	UPS235810
MLS Number	14097103
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Houston, TX, US
Sold By	Penske Used Trucks

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

$48,250 USD

Used 2023 International LT625 Sleeper Semi Truck, 618,806 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	618,824 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	UPS235769
MLS Number	14092381
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Dallas, TX, US
Sold By	Penske Used Trucks

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

$43,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 628,691 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 73\" integral sleeper, air ride suspension....

Condition	Used
Usage	628,740 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	UPP235895
MLS Number	14097081
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Parsippany, NJ, US
Sold By	Penske Used Trucks

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

Price Drop $59,750 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 574,483 miles, 455HP D13 diesel engine, 12-speed automatic transmission, 70" integral sleeper, tandem rear axle, air ride suspension....

Condition	Used
Usage	574,490 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	452097
MLS Number	13865334
Category	Sleeper Semi Trucks
Last Updated	2/8/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

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2021 Kenworth T680 Sleeper Semi Truck - 72" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Automatic

$54,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** SLIDING 5TH WHEEL!!!!! AIR RIDE, ENGINE BRAKE, DEF, MINI FRIDGE Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7...

Condition	Used
Usage	441,986 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	N15324-DELIVERY 2 U
MLS Number	14108985
Category	Sleeper Semi Trucks
Last Updated	2/10/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

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

$53,500 USD

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

Condition	Used
Usage	573,910 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	394232
MLS Number	13868295
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Salem, VA, US
Sold By	Penske Used Trucks

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2021 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$45,750 USD

Used 2021 International LT625 Sleeper Semi Truck for sale, 459,131 miles, Cummins X15 engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, 240-gallon fuel...

Condition	Used
Usage	459,131 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 3.08 ratio
Stock Number	372090
MLS Number	14108505
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Louisville, KY, US
Sold By	Penske Used Trucks

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

$54,750 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 583,998 miles, 455 HP DD15AT Diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	584,000 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	385547
MLS Number	14014920
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Atlanta, GA, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

$43,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 598,424 miles, 505HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, single rear axle,...

Condition	Used
Usage	601,508 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	20,000 lb 3.08 ratio
Stock Number	378639
MLS Number	14069667
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Lancaster, PA, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

$69,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 394,399 miles, 400HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	394,476 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.28 ratio
Stock Number	EPES21164
MLS Number	13879368
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Concord, NC, US
Sold By	Penske Used Trucks

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2021 Kenworth T680 Sleeper Semi Truck - 74" Raised Roof Sleeper, Cummins 400HP, 12 Speed Endurant Amt

$54,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** SLIDING 5TH WHEEL!!!!! AIR RIDE, ENGINE BRAKE, DEF, MINI FRIDGE Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7...

Condition	Used
Usage	437,881 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	74"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	N15237-DELIVERY 2 U
MLS Number	14017497
Category	Sleeper Semi Trucks
Last Updated	2/10/2026
Location	Turlock, CA, US
Sold By	Diamond Truck Sales Inc

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

$42,950 USD

New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Well Maintained Fleet Truck, Oil Changed Every 45K...

Condition	Used
Usage	483,384 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 2.47 ratio
Stock Number	3506
MLS Number	13998190
Category	Sleeper Semi Trucks
Last Updated	1/24/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

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2021 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$44,950 USD

Cummins Engine, N.A.P., Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Well Maintained Fleet Truck, Oil Changed Every...

Condition	Used
Usage	448,391 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	3596
MLS Number	13963586
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	GRANGER, IA, US
Sold By	Barr-Nunn Transportation LLC

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