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 Scottsdale, Arizona

Used 2019 Freightliner Cascadia - photo 1

Used 2019 Freightliner Cascadia - photo 2

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$33,500

speed 587,574 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$48,000

speed 246,217 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$48,000

speed 247,271 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

$60,750

speed 327,254 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$60,750

speed 220,152 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$58,000

speed 371,306 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$72,500

speed 547,885 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$45,750

speed 294,510 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$38,500

speed 520,123 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$41,000

speed 469,455 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

$57,000

speed 387,907 mi

location_on

Penske Used Trucks

Capitol Heights, MD (1,972.6 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$46,000

speed 342,254 mi

location_on

Penske Used Trucks

Jessup, MD (1,977.5 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$43,500

speed 352,405 mi

location_on

Penske Used Trucks

Jessup, MD (1,977.5 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$56,500

speed 294,940 mi

location_on

Penske Used Trucks

Jessup, MD (1,977.5 mi)

(844) 572-5838

Used 2023 Freightliner Cascadia - photo 1

Used 2023 Freightliner Cascadia - photo 2

Used 2023 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$76,750

speed 567,111 mi

location_on

Penske Used Trucks

Jessup, MD (1,977.5 mi)

(844) 572-5838

Used 2020 Peterbilt 579 Cummins ISX15 Semi Trucks / Tractors

$79,500

speed 266,050 mi

sell

Key features

ISX15
6x4

location_on

Penske Used Trucks

Jessup, MD (1,977.5 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$53,250

speed 301,708 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$39,500

speed 478,324 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$54,750

speed 326,570 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$54,500

speed 325,904 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2021 Freightliner Cascadia Cummins X15 Sleeper Truck

$52,750

speed 658,142 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$59,750

speed 236,240 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$39,000

speed 567,309 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2020 Freightliner Coronado - photo 1

Used 2020 Freightliner Coronado - photo 2

Used 2020 Freightliner Coronado Detroit DD15AT Day Cab Truck

$83,500

speed 283,094 mi

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2019 International RH International A26 Semi Trucks / Tractors

$23,250

speed 331,542 mi

sell

Key features

A26
SBA 6x4

location_on

Penske Used Trucks

White Deer, PA (1,978.9 mi)

(844) 572-5838

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

$37,250

speed 635,218 mi

location_on

Penske Used Trucks

Harrisburg, PA (1,979.9 mi)

(844) 572-5838

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$28,750

speed 609,338 mi

location_on

Penske Used Trucks

Harrisburg, PA (1,979.9 mi)

(844) 572-5838

Used 2023 Freightliner Cascadia Detroit DD13 Day Cab Truck

$41,000

speed 665,846 mi

location_on

Penske Used Trucks

Harrisburg, PA (1,979.9 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$51,000

speed 361,158 mi

location_on

Penske Used Trucks

Harrisburg, PA (1,979.9 mi)

(844) 572-5838

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$48,250

speed 386,461 mi

location_on

Penske Used Trucks

Harrisburg, PA (1,979.9 mi)

(844) 572-5838

Semi Trucks for Sale near Scottsdale, Arizona

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Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD15AT Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Peterbilt 579 Cummins ISX15 Semi Trucks / Tractors

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2021 Freightliner Cascadia Cummins X15 Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Coronado Detroit DD15AT Day Cab Truck

Used 2019 International RH International A26 Semi Trucks / Tractors

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 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

Frequently Asked Questions about Semi Trucks / Tractors

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