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 Longmont, Colorado

Used 2022 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

$79,500

speed 347,995 mi

location_on

MHC Internet Truck Sales

Pueblo, CO (129.5 mi)

New 2027 Kenworth T880 Cummins ISX / X15 Day Cab Truck

$237,435

location_on

MHC Internet Truck Sales

Grand Junction, CO (200.2 mi)

New 2027 Kenworth W900 Cummins GX Sleeper Truck

contact for price

location_on

MHC Internet Truck Sales

Grand Junction, CO (200.2 mi)

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$79,250

speed 519,407 mi

location_on

Penske Used Trucks

Albuquerque, NM (357.5 mi)

Used 2022 Volvo VNL Volvo D13 Semi Trucks / Tractors

$78,500

speed 514,986 mi

sell

Key features

D13
6x4

location_on

Penske Used Trucks

Albuquerque, NM (357.5 mi)

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$87,750

speed 439,470 mi

location_on

Penske Used Trucks

Albuquerque, NM (357.5 mi)

Used 2022 Volvo VNL Volvo D13 Semi Trucks / Tractors

$78,750

speed 550,105 mi

sell

Key features

D13
6x4

location_on

Penske Used Trucks

Albuquerque, NM (357.5 mi)

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$51,500

speed 464,354 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2021 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$59,750

speed 644,624 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$71,500

speed 218,687 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

$83,000

speed 327,960 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

$80,250

speed 375,650 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$68,000

speed 242,178 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2024 Freightliner Cascadia - photo 1

Used 2024 Freightliner Cascadia - photo 2

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$85,250

speed 624,775 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$66,000

speed 541,668 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$53,250

speed 885,017 mi

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$45,000

speed 651,256 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Salt Lake City, UT (361.3 mi)

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$88,000

speed 605,260 mi

location_on

Penske Used Trucks

West Valley City, UT (361.7 mi)

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$44,000

speed 501,931 mi

location_on

Penske Used Trucks

West Valley City, UT (361.7 mi)

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$54,500

speed 693,764 mi

location_on

Penske Used Trucks

Ogden, UT (368.5 mi)

Used 2023 Volvo VNL Volvo D13 Semi Trucks / Tractors

$100,250

speed 427,179 mi

sell

Key features

D13
6x4

location_on

Penske Used Trucks

Ogden, UT (368.5 mi)

Used 2023 Freightliner Cascadia - photo 1

Used 2023 Freightliner Cascadia - photo 2

Used 2023 Freightliner Cascadia Detroit DD13 Day Cab Truck

$97,750

speed 227,107 mi

location_on

Penske Used Trucks

Ogden, UT (368.5 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$67,750

speed 481,677 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Amarillo, TX (388.3 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$67,250

speed 192,564 mi

location_on

Penske Used Trucks

Amarillo, TX (388.3 mi)

Used 2023 Volvo VNL Volvo D13 TC Semi Trucks / Tractors

$59,750

speed 540,286 mi

sell

Key features

D13 TC
6x4

location_on

Penske Used Trucks

Amarillo, TX (388.3 mi)

New 2027 Kenworth W900 Cummins GX Sleeper Truck

$247,819

location_on

MHC Internet Truck Sales

Salina, KS (409.5 mi)

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

$56,250

speed 588,768 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Billings, MT (423.4 mi)

Used 2021 Volvo VNR Volvo D13 Semi Trucks / Tractors

$42,500

speed 536,189 mi

sell

Key features

D13
6x4
Conventional Cab

location_on

Penske Used Trucks

Billings, MT (423.4 mi)

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$52,500

speed 411,775 mi

location_on

Penske Used Trucks

Idaho Falls, ID (427.8 mi)

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$75,750

speed 537,068 mi

location_on

Penske Used Trucks

Idaho Falls, ID (427.8 mi)

Semi Trucks for Sale near Longmont, Colorado

Filters

4,841 results

Applied

Location

Condition

Listing Type

Used 2022 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

New 2027 Kenworth T880 Cummins ISX / X15 Day Cab Truck

New 2027 Kenworth W900 Cummins GX Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 Volvo VNL Volvo D13 Semi Trucks / Tractors

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 Volvo VNL Volvo D13 Semi Trucks / Tractors

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2024 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2023 Volvo VNL Volvo D13 Semi Trucks / Tractors

Used 2023 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 Volvo VNL Volvo D13 TC Semi Trucks / Tractors

New 2027 Kenworth W900 Cummins GX Sleeper Truck

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

Used 2021 Volvo VNR Volvo D13 Semi Trucks / Tractors

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

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