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 Thornton, Colorado

Used 2022 International LT Cummins X15 Sleeper Truck

$52,500

speed 520,700 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

$49,500

speed 549,456 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

$52,500

speed 517,844 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

$49,500

speed 541,783 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Day Cab Truck

$67,500

speed 175,341 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

contact for price

speed 450,170 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

contact for price

speed 524,864 mi

sell

Key features

X15
6x4
Air Brakes

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

$52,500

speed 499,070 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2022 International LT Cummins X15 Sleeper Truck

contact for price

speed 546,128 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2020 International LT Cummins X15 Sleeper Truck

$39,500

speed 567,500 mi

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2021 International LT Cummins X15 Semi Trucks / Tractors

$39,500

speed 1 mi

sell

Key features

X15
4x2
Air Brakes

location_on

Southwest International Truck - Dallas

Dallas, TX (663.1 mi)

Used 2019 Freightliner M2 106 Cummins L9 Day Cab Truck

$48,500

speed 201,850 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$66,750

speed 278,047 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$56,500

speed 310,056 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Sleeper Truck

$83,000

speed 361,210 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$66,000

speed 250,986 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$49,750

speed 390,667 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2019 Freightliner M2 106 Cummins L9 Day Cab Truck

$48,750

speed 198,820 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$57,750

speed 299,104 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$67,250

speed 285,427 mi

location_on

Penske Used Trucks

Moberly, MO (666.9 mi)

Used 2023 International RH International A26 Semi Trucks / Tractors

$51,500

speed 420,360 mi

sell

Key features

A26
SBA 6x4

location_on

Penske Used Trucks

Dallas, TX (667.4 mi)

Used 2023 Freightliner Cascadia - photo 1

Used 2023 Freightliner Cascadia - photo 2

Used 2023 Freightliner Cascadia Detroit DD13 Day Cab Truck

$39,750

speed 739,267 mi

location_on

Penske Used Trucks

Dallas, TX (667.4 mi)

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

$57,250

speed 463,908 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

$56,500

speed 477,239 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$73,500

speed 501,950 mi

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2020 Freightliner Cascadia Cummins X15 Sleeper Truck

$68,750

speed 535,937 mi

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

$53,250

speed 517,384 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$64,500

speed 591,566 mi

location_on

Penske Used Trucks

Dallas, TX (667.6 mi)

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

$52,250

speed 693,907 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Garland, TX (668.4 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$61,000

speed 502,160 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Garland, TX (668.4 mi)

Semi Trucks for Sale near Thornton, Colorado

Filters

4,853 results

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Location

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Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Day Cab Truck

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2022 International LT Cummins X15 Sleeper Truck

Used 2020 International LT Cummins X15 Sleeper Truck

Used 2021 International LT Cummins X15 Semi Trucks / Tractors

Used 2019 Freightliner M2 106 Cummins L9 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner M2 106 Cummins L9 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 International RH International A26 Semi Trucks / Tractors

Used 2023 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Sleeper Truck

Used 2020 International LT Cummins X15 Semi Trucks / Tractors

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Frequently Asked Questions about Semi Trucks / Tractors

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