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.

Semi Trucks for Sale near Wheat Ridge, Colorado

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$44,250

speed 840,178 mi

location_on

Penske Used Trucks

Fort Worth, TX (650 mi)

(844) 572-5838

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

$68,500

speed 414,808 mi

location_on

Penske Used Trucks

Fort Worth, TX (650 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$70,000

speed 530,700 mi

location_on

Penske Used Trucks

Fort Worth, TX (650 mi)

(844) 572-5838

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$85,750

speed 499,791 mi

location_on

Penske Used Trucks

Fort Worth, TX (650 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$74,000

speed 485,977 mi

location_on

Penske Used Trucks

Carrollton, TX (653.6 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$65,500

speed 613,490 mi

location_on

Penske Used Trucks

Carrollton, TX (653.6 mi)

(844) 572-5838

Used 2024 Peterbilt 579 Paccar MX/MX-13 Sleeper Truck

$82,950

speed 317,000 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$69,900

speed 431,185 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$77,950

speed 467,618 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

$72,950

speed 392,016 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2022 Kenworth T880 Cummins ISX / X15 Day Cab Truck

$89,950

speed 298,343 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

$64,950

speed 472,714 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$77,950

speed 464,950 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$94,950

speed 295,934 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$74,950

speed 477,509 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$77,950

speed 303,420 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

Used 2024 Peterbilt 579 Paccar MX/MX-13 Sleeper Truck

$62,950

speed 510,000 mi

location_on

MHC Internet Truck Sales

Fort Worth, TX (656 mi)

(833) 865-7764

New 2027 International LT International S13 Day Cab Truck

contact for price

location_on

Southwest International Truck - McKinney

McKinney, TX (658.4 mi)

(214) 829-0265

New 2026 International LT Cummins X15 Day Cab Truck

contact for price

location_on

Southwest International Truck - McKinney

McKinney, TX (658.4 mi)

(214) 829-0265

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$65,500

speed 215,029 mi

sell

Key features

X15
6x4
Air Brakes

location_on

Southwest International Truck - McKinney

McKinney, TX (658.4 mi)

(214) 829-0265

Used 2022 International LT Cummins X15 Sleeper Truck

$49,500

speed 538,893 mi

location_on

Southwest International Truck - McKinney

McKinney, TX (658.4 mi)

(214) 829-0265

Used 2016 Volvo VNL Volvo D11 Day Cab Truck

$19,500

speed 641,948 mi

location_on

Southwest International Truck - McKinney

McKinney, TX (658.4 mi)

(214) 829-0265

$59,250

speed 480,903 mi

location_on

Penske Used Trucks

Fort Worth, TX (659.7 mi)

(844) 572-5838

Semi Trucks for Sale near Wheat Ridge, Colorado

Filters

4,841 results

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Location

Condition

Listing Type

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2024 Peterbilt 579 Paccar MX/MX-13 Sleeper Truck

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

Used 2022 Kenworth T880 Cummins ISX / X15 Day Cab Truck

Used 2023 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2024 Peterbilt 579 Paccar MX/MX-13 Sleeper Truck

New 2027 International LT International S13 Day Cab Truck

New 2026 International LT Cummins X15 Day Cab Truck

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2016 Volvo VNL Volvo D11 Day Cab Truck

New 2027 Kenworth W900 Cummins GX Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Sleeper Truck

Frequently Asked Questions about Semi Trucks / Tractors

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