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 Rockford, Illinois

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$61,500

speed 335,388 mi

location_on

Penske Used Trucks

Hammond, LA (819.7 mi)

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

$59,000

speed 304,555 mi

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Penske Used Trucks

West Babylon, NY (823 mi)

New 2027 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

$197,138

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MHC Internet Truck Sales

Wilmington, NC (825.6 mi)

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$50,250

speed 458,787 mi

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Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$38,500

speed 638,800 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$49,250

speed 450,569 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$40,000

speed 622,720 mi

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Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$43,500

speed 587,486 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$44,250

speed 583,633 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$45,500

speed 566,077 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$50,500

speed 485,609 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$55,500

speed 701,819 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$49,250

speed 522,414 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$45,000

speed 573,033 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$48,000

speed 474,749 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2019 Freightliner Cascadia - photo 1

Used 2019 Freightliner Cascadia - photo 2

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$33,750

speed 621,228 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$77,750

speed 524,120 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$39,000

speed 635,525 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Sleeper Truck

$51,250

speed 745,469 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

$39,000

speed 634,390 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2017 Freightliner Cascadia - photo 1

Used 2017 Freightliner Cascadia - photo 2

Used 2017 Freightliner Cascadia Detroit DD15 Sleeper Truck

$49,250

speed 676,813 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$49,750

speed 516,859 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$80,250

speed 520,199 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$77,750

speed 519,923 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

$68,750

speed 265,593 mi

location_on

Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2019 Freightliner Cascadia Detroit DD13 Semi Trucks / Tractors

$52,750

speed 238,277 mi

sell

Key features

DD13
6x4
Day Cab

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Penske Used Trucks

Pensacola, FL (827.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$34,950

speed 547,471 mi

location_on

American Motors

Commerce City, CO (829.3 mi)

Used 2016 Mack TD713 Day Cab Truck

$84,950

speed 444,390 mi

location_on

American Motors

Commerce City, CO (829.3 mi)

Used 2014 Western Star 4900 Detroit DD15 TC Day Cab Truck

$17,950

speed 146,476 mi

location_on

American Motors

Commerce City, CO (829.3 mi)

Used 2023 Peterbilt 579 Cummins ISX Sleeper Truck

$69,950

speed 550,700 mi

location_on

American Motors

Commerce City, CO (829.3 mi)

Semi Trucks for Sale near Rockford, Illinois

Filters

4,840 results

Applied

Location

Condition

Listing Type

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

New 2027 Kenworth T680 Paccar MX/MX-13 Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Sleeper Truck

Used 2021 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2017 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Semi Trucks / Tractors

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2016 Mack TD713 Day Cab Truck

Used 2014 Western Star 4900 Detroit DD15 TC Day Cab Truck

Used 2023 Peterbilt 579 Cummins ISX Sleeper Truck

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