Semi Trucks For Sale in Colorado

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Featured Item

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$109,950 USD

2023 Freightliner Cascadia 126 Sleeper – Detroit DD15 450 HP, DT12 Automatic, 76” Raised Roof Double Bunk, 191K Miles This 2023 Freightliner Cascadia 126 is a well-maintained, Class 8...

Condition	Used
Usage	191,443 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	MO11105
MLS Number	14109181
Category	Sleeper Semi Trucks
Last Updated	2/11/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

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Featured Item

2019 Peterbilt 579 Sleeper Semi Truck - 80" Mid Roof Sleeper, Paccar 455HP, 12 Speed Endurant Automatic

$32,950 USD

AVAILABLE FOR SALE: 2019 PETERBILT 579 SLEEPER IN KANSAS CITY, MO WAITING FOR INSPECTION AND DETAIL.. FUEL-EFFICIENT, DRIVER-FOCUSED, AND READY TO WORK!!! CALL AMERICAN TRUCK CENTERS FOR...

Condition	Used
Usage	538,858 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	80"
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	MO11032
MLS Number	14064737
Category	Sleeper Semi Trucks
Last Updated	1/30/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

(844) 708-___ SHOW
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Featured Item

2012 Kenworth W900L Sleeper Semi Truck - Mid Roof Sleeper, Cummins 600HP, 18 Speed Manual

$67,500 USD

2012 Kenworth W900L with Deleted Cummins 600 HP X15 Engine, 3 Stage Jake Brake, Fresh Rebuilt Eaton 18 Speed Transmission, 3.25 Ratio Rear Differentials, Differential Lock, 50350 GVWR, Air...

Condition	Used
Usage	14,044 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	600 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	18 Speed Manual
Sleeper Type	Mid Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	38,000 lb 3.25 ratio
Stock Number	SBA1170
MLS Number	13764320
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Roosevelt, UT, US 273 mi. away
Sold By	SellBuyAuction

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Featured Item

2000 Peterbilt 379 Ext Hd Sleeper Semi Truck

$37,000 USD

Cat 3406 E, 18 speed, 3:91 ratio, Wet Kit, 411540 miles on rebuild. Call 435-690-9044 for additional information.

Condition	Used
Usage	1,774,662 Miles
MLS Number	13692489
Category	Sleeper Semi Trucks
Last Updated	2/12/2026
Location	Panguitch, UT, US 428 mi. away
Sold By	K & D Forest Products Inc.

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$47,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 674,624 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed automatic Detroit transmission, tandem rear axle,...

Condition	Used
Usage	674,626 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	386387
MLS Number	14015395
Category	Sleeper Semi Trucks
Last Updated	2/7/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

$61,250 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 570,439 miles, 455 HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle....

Condition	Used
Usage	570,441 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	385465
MLS Number	14111075
Category	Sleeper Semi Trucks
Last Updated	1/31/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

$40,500 USD

Used 2020 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 632,104 miles, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	632,105 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	360779
MLS Number	13431192
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

$40,500 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	696,397 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	UPP236470
MLS Number	14097112
Category	Sleeper Semi Trucks
Last Updated	2/18/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

$65,500 USD

Used 2022 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 499,407 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, air ride suspension...

Condition	Used
Usage	499,407 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 2.85 ratio
Stock Number	436662
MLS Number	14024909
Category	Sleeper Semi Trucks
Last Updated	2/4/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

Price Drop $54,500 USD

Used 2022 Volvo VNL64760 Sleeper Semi Truck for sale, 595,000 miles, 455HP D13 diesel engine, 12-speed automatic Volvo transmission, 70" integral sleeper, tandem rear axle, air ride...

Condition	Used
Usage	606,136 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	387076
MLS Number	13868203
Category	Sleeper Semi Trucks
Last Updated	2/13/2026
Location	Aurora, CO, US 5 mi. away
Sold By	Penske Used Trucks

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

Recently Updated

$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	335,908 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	COAP7587
MLS Number	14025126
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2022 Kenworth T880 Sleeper Semi Truck - 76" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

Recently Updated

$57,950 USD

Take a look at this 2022 Kenworth T880 powered by a Cummins X15 rated at 450 HP and paired with an Endurant 12-speed automated transmission with a 2.85 ratio, set up for efficient highway...

Condition	Used
Usage	486,123 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	Mid Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10782
MLS Number	13852450
Category	Sleeper Semi Trucks
Last Updated	2/21/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Amt

Newly Listed

$69,950 USD

For Sale: 2023 Peterbilt 579 - Multiple Matching Units Available! Equipped with a 450hp Cummins X15, 12-Speed Automated Transmission, Thermo King APU, 80" Raised Roof Double Bunk Sleeper,...

Condition	Used
Usage	453,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO11163
MLS Number	14155891
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Amt

Newly Listed

$72,950 USD

For Sale: 2023 Peterbilt 579 - Multiple Matching Units Available! Equipped with a 450hp Cummins X15, 12-Speed Automated Transmission, Thermo King APU, 80" Raised Roof Double Bunk Sleeper,...

Condition	Used
Usage	414,072 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO11162
MLS Number	14155888
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2023 Peterbilt 579 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 450HP, 12 Speed Amt

Newly Listed

$72,950 USD

For Sale: 2023 Peterbilt 579 - Multiple Matching Units Available! Equipped with a 450hp Cummins X15, 12-Speed Automated Transmission, Thermo King APU, 80" Raised Roof Double Bunk Sleeper,...

Condition	Used
Usage	409,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	80"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	CO11161
MLS Number	14155886
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2022 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Paccar 455HP, 12 Speed Amt

Recently Updated

$42,950 USD

This fully loaded 2022 Kenworth T680 combines modern aerodynamics, cutting-edge safety features, and driver comfort to deliver a superior over-the-road experience. Equipped with an...

Condition	Used
Usage	14,631 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	CO10797
MLS Number	13899963
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

(844) 385-___ SHOW
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2020 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Condo Sleeper, 455HP, 10 Speed Manual

Newly Listed

$52,869 USD

Condition	Used
Usage	533,540 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	10 Speed Manual
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.25 ratio
Stock Number	896523
MLS Number	14154504
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Ryder

(844) 385-___ SHOW
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2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Condo Sleeper, 12 Speed Automatic

Recently Updated

$52,199 USD

Condition	Used
Usage	616,928 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	274001
MLS Number	13732256
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Ryder

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Amt

Price Drop $72,950 USD

2022 Freightliner Cascadia – Fully Loaded Warranty Covered This 2022 Freightliner Cascadia is a dependable, driver-friendly truck built for efficiency, comfort, and long-haul performance....

Condition	Used
Usage	11,000 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 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 2.85 ratio
Stock Number	CO11110
MLS Number	14120271
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 76" Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Automatic

Newly Listed

$49,950 USD

For Sale Very Clean 2020 Freightliner Casacadia 126 Sleeper, with EAPU, Double Bunk, Fridge, Sleeper Windows, Hood Mirrors, Deep Rubber, Aluminum Wheels and more!, Located in Denver, CO,...

Condition	Used
Usage	511,178 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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	COAP7573
MLS Number	14147352
Category	Sleeper Semi Trucks
Last Updated	2/19/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

(844) 307-___ SHOW
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2021 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Newly Listed

$51,250 USD

Inspection Report

Condition	Used
Usage	448,915 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear End	20,000 lb 2.64 ratio
Stock Number	505585
MLS Number	14147316
Category	Sleeper Semi Trucks
Last Updated	2/17/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	International Motors, LLC

2024 Kenworth T680 Sleeper Semi Truck - 52" Mid Roof Sleeper, Paccar 510HP, 12 Speed Endurant Automatic

Price Drop $87,950 USD

2024 Kenworth T680 – Low Miles, Long Warranty, Ready to Roll. This 2024 Kenworth T680 is a standout late-model sleeper with only 120,000 verified miles and exceptional factory warranty...

Condition	Used
Usage	120,165 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	510 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	52"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	CO11033
MLS Number	14053871
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

2019 Freightliner Cascadia 113 Sleeper Semi Truck - Detroit 450HP

Recently Updated

$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	CO10644
MLS Number	13778194
Category	Sleeper Semi Trucks
Last Updated	2/20/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Michelle Sells Trucks

(844) 385-___ SHOW
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2019 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Condo Sleeper, 455HP, 12 Speed Automatic

$58,057 USD

Condition	Used
Usage	549,441 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	843814
MLS Number	14145561
Category	Sleeper Semi Trucks
Last Updated	2/15/2026
Location	Commerce City, CO, US 5 mi. away
Sold By	Ryder