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 Mobile, Alabama

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

$66,000

speed 634,324 mi

location_on

Penske Used Trucks

Orlando, FL (431.7 mi)

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

$55,500

speed 303,217 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$55,953

speed 678,302 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2019 Freightliner Cascadia - photo 1

Used 2019 Freightliner Cascadia - photo 2

Used 2019 Freightliner Cascadia Detroit Diesel DD15 Day Cab Truck

$58,300

speed 159,990 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 International LT Cummins X15, Signature Day Cab Truck

$53,156

speed 104,915 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Cummins X15 Semi Trucks / Tractors

$51,384

speed 362,377 mi

sell

Key features

X15 GHG'17 450/1800
6x4
Day Cab

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$39,495

speed 261,182 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

$33,995

speed 478,022 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$58,128

speed 637,462 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 International LT Cummins X15, Signature Day Cab Truck

$46,500

speed 369,378 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$59,278

speed 591,351 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit DD13 Sleeper Truck

$66,557

speed 327,764 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2023 Freightliner Cascadia - photo 1

Used 2023 Freightliner Cascadia - photo 2

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$57,350

speed 766,406 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2022 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$55,081

speed 746,704 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

$35,673

speed 501,234 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$60,051

speed 699,433 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$60,078

speed 699,131 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2019 International RH International A26 Semi Trucks / Tractors

$23,750

speed 247,507 mi

sell

Key features

A26'17 410/1700
SBA 4x2

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 International LT Cummins X15, Signature Semi Trucks / Tractors

$42,000

speed 248,278 mi

sell

Key features

X15'17 400/1800
SBA 6x4

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$52,257

speed 823,887 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$53,791

speed 668,987 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$49,721

speed 768,466 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

$65,006

speed 555,489 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

$50,389

speed 454,244 mi

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2020 International LT Cummins X15, Signature Semi Trucks / Tractors

$42,000

speed 307,416 mi

sell

Key features

X15'17 450/1600
SBA 6x4

location_on

Ryder Used Trucks

Houston, TX (432.9 mi)

Used 2025 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

$204,900

speed 146,314 mi

sell

Key features

14.9 I6 Turbo
6x4

location_on

Orange Truck Sales

Orlando, FL (434.4 mi)

Used 2023 Kenworth T680 Paccar MX-11 Semi Trucks / Tractors

contact for price

speed 35,550 mi

sell

Key features

PACCAR MX-11 10.8L I6 355-430hp 1250-1550ft. lbs.
6x4

location_on

Orange Truck Sales

Orlando, FL (434.4 mi)

Used 2023 Peterbilt 579 Cummins ISX Semi Trucks / Tractors

$165,900

speed 173,486 mi

sell

Key features

Cummins X15 14.9L I6 400-605hp 1450-2050ft. lbs.
6x4

location_on

Orange Truck Sales

Orlando, FL (434.4 mi)

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

$140,900

speed 79,017 mi

location_on

Orange Truck Sales

Orlando, FL (434.4 mi)

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

$46,250

speed 728,960 mi

sell

Key features

X15
SBA 6x4

location_on

Penske Used Trucks

Houston, TX (435.7 mi)

Semi Trucks for Sale near Mobile, Alabama

Filters

4,853 results

Applied

Location

Condition

Listing Type

Used 2022 Freightliner Cascadia Detroit DD15AT Sleeper Truck

Used 2020 Freightliner Cascadia Cummins X15 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2019 Freightliner Cascadia Detroit Diesel DD15 Day Cab Truck

Used 2020 International LT Cummins X15, Signature Day Cab Truck

Used 2020 Freightliner Cascadia Cummins X15 Semi Trucks / Tractors

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2021 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2020 International LT Cummins X15, Signature Day Cab Truck

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2020 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2019 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2019 International RH International A26 Semi Trucks / Tractors

Used 2020 International LT Cummins X15, Signature Semi Trucks / Tractors

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2020 Freightliner Cascadia Detroit Diesel DD15 Sleeper Truck

Used 2021 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2020 International LT Cummins X15, Signature Semi Trucks / Tractors

Used 2025 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

Used 2023 Kenworth T680 Paccar MX-11 Semi Trucks / Tractors

Used 2023 Peterbilt 579 Cummins ISX Semi Trucks / Tractors

Used 2022 Freightliner Cascadia Detroit DD13 Day Cab Truck

Used 2023 International LT Cummins X15 Semi Trucks / Tractors

Frequently Asked Questions about Semi Trucks / Tractors

Most Popular Work Truck and Van Inventory

Right Truck. Right Place. Right Time.