What are the most popular brands of semi trucks in the US?

The most popular semi truck brands in the US, known for their reliability, performance, and widespread use, include: Freightliner: Explore our current Freightliner semi truck listings here. International: Find your next International semi truck here. Peterbilt: Browse all available Peterbilt semi trucks for sale. Kenworth: View our selection of Kenworth semi trucks. Volvo: Discover Volvo semi trucks currently available. Mack: See our inventory of Mack semi trucks.

How many miles is too many on a used semi truck?

A well-maintained semi truck engine is built to run 750,000 to over 1,000,000 miles before a major overhaul. Mileage alone isn't the right filter — service history, engine condition, and whether the truck has had any major powertrain work matter more. A 600,000-mile truck with documented maintenance and recent engine work can be a better buy than a 400,000-mile truck with no service records.

Should I buy a day cab or sleeper semi truck?

It depends on your operation. If your routes are regional or local and drivers return home nightly, a day cab is the more practical and cost-efficient choice — it's lighter, simpler, and less expensive to maintain. If you're running long-haul or OTR freight where drivers spend nights on the road, a sleeper provides the comfort and compliance with hours-of-service regulations that an OTR operation requires.

Can I search semi trucks by location on Comvoy?

Yes. Comvoy lets you filter semi truck listings by location so you can find trucks available near you or in a specific state — reducing transport costs and making it easier to inspect before you buy. You can also filter by make, model year, mileage, and price to narrow results to your exact spec.

How much weight can a semi truck carry?

The legal limit for a loaded semi-truck in the US is 80,000 pounds, though the actual capacity can vary depending on the truck and trailer configuration.

How many gears do semi trucks have?

They can have up to 18 gears, providing the necessary torque and power for hauling heavy loads efficiently.

How much fuel do semi trucks use?

Fuel efficiency varies depending on engine size, load weight, and driving conditions, but expect lower mpg than cars, typically around 5-8 mpg.

Do you need a special license to drive a semi truck?

Yes, a Commercial Driver's License (CDL) with specific endorsements is required to operate a semi-truck legally.

What are the challenges of being a truck driver?

Long hours on the road, loneliness, traffic congestion, and dealing with varying weather conditions are some of the challenges truck drivers face.

What kinds of trailers can semi trucks haul?

Semi trucks can haul many different types of trailers. The most commonly hauled trailers are dry vans, reefers, flatbeds, tankers, and lowboys.

Used Semi Trucks / Trucks for Sale in Colorado

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$44,950

speed 437,432 mi

location_on

American Motors

Commerce City, CO

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$39,950

speed 470,291 mi

location_on

American Motors

Commerce City, CO

Used 2014 Western Star 4900 Detroit DD15 TC Day Cab Truck

$17,950

speed 146,476 mi

location_on

American Motors

Commerce City, CO

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$75,950

speed 448,946 mi

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

$59,950

speed 544,807 mi

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 544,494 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 541,901 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 546,157 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

$49,950

speed 621,000 mi

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 540,831 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

$59,950

speed 546,018 mi

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$69,950

speed 483,136 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 588,057 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$49,950

speed 610,000 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2023 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

$87,950

speed 391,387 mi

sell

Key features

X15
6x4

location_on

American Motors

Commerce City, CO

Used 2023 International LT Cummins X15, Signature Semi Trucks / Tractors

$44,950

speed 358,382 mi

sell

Key features

X15
SBA 6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$69,950

speed 484,000 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 528,299 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 570,617 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 590,721 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 536,180 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$59,950

speed 536,157 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$69,950

speed 484,952 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 584,814 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2016 Kenworth T880 Cummins ISX Semi Trucks / Tractors

$69,950

speed 906,379 mi

sell

Key features

X15
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 579,187 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

$54,950

speed 577,034 mi

sell

Key features

MX13 EPA17
6x4

location_on

MHC Internet Truck Sales

Denver, CO

Used Semi Trucks / Trucks for Sale in Colorado

Filters

147 results

Applied

Location

Condition

Listing Type

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2014 Western Star 4900 Detroit DD15 TC Day Cab Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Day Cab Truck

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2023 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

Used 2023 International LT Cummins X15, Signature Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2016 Kenworth T880 Cummins ISX Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Used 2020 Kenworth T880 Paccar MX/MX-13 Semi Trucks / Tractors

Frequently Asked Questions about Semi Trucks / Tractors

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