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 Port Saint Lucie, Florida

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$69,950

speed 461,100 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$69,950

speed 447,675 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2023 Kenworth T800 Cummins ISX / X15 Sleeper Truck

$159,950

speed 361,897 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$84,950

speed 389,060 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$72,950

speed 422,425 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$72,950

speed 381,601 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2020 Kenworth T880 Cummins ISX / X15 Day Cab Truck

$91,950

speed 129,150 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2023 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

$84,950

speed 391,450 mi

sell

Key features

X15
6x4

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MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2024 Kenworth T680 Cummins ISX / X15 Sleeper Truck

$77,750

speed 449,692 mi

location_on

MHC Internet Truck Sales

Tulsa, OK (1,103.3 mi)

Used 2022 Freightliner Cascadia - photo 1

Used 2022 Freightliner Cascadia - photo 2

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

$66,900

speed 466,458 mi

location_on

Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2021 Freightliner Cascadia - photo 1

Used 2021 Freightliner Cascadia - photo 2

Used 2021 Freightliner Cascadia Detroit DD15 Sleeper Truck

$71,900

speed 446,097 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

$81,900

speed 491,178 mi

location_on

Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

$72,900

speed 404,053 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

$72,900

speed 385,967 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2023 Freightliner Cascadia - photo 1

Used 2023 Freightliner Cascadia - photo 2

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$74,900

speed 500,539 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

$81,900

speed 474,078 mi

location_on

Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Cummins X12 Day Cab Truck

$44,900

speed 319,552 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2020 Freightliner Cascadia - photo 1

Used 2020 Freightliner Cascadia - photo 2

Used 2020 Freightliner Cascadia Detroit DD15 Sleeper Truck

$74,900

speed 466,097 mi

location_on

Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$52,900

speed 521,593 mi

sell

Key features

X15
SBA 6x4
Sleeper Cab

location_on

Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

$54,900

speed 459,105 mi

sell

Key features

X15
SBA 6x4
Sleeper Cab

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

$64,900

speed 476,670 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$79,900

speed 458,178 mi

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Doggett Freightliner - San Antonio

San Antonio, TX (1,103.4 mi)

Used 2022 Kenworth T680 Cummins X15 Sleeper Truck

$57,900

speed 659,922 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

$77,900

speed 485,598 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2023 Freightliner Cascadia Cummins X15 Sleeper Truck

$66,900

speed 535,805 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

$67,900

speed 499,883 mi

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Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2022 Kenworth T680 Cummins X15 Sleeper Truck

$66,900

speed 581,262 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2024 International LT Cummins X15 Sleeper Truck

$62,900

speed 484,212 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2023 Kenworth T680 Paccar MX13 Sleeper Truck

$57,900

speed 456,400 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Used 2025 Freightliner Cascadia - photo 1

Used 2025 Freightliner Cascadia - photo 2

Used 2025 Freightliner Cascadia Detroit DD15 Sleeper Truck

$159,900

speed 137,556 mi

location_on

Doggett Freightliner - Pharr

Pharr, TX (1,104.2 mi)

Semi Trucks for Sale near Port Saint Lucie, Florida

Filters

4,846 results

Applied

Location

Condition

Listing Type

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T800 Cummins ISX / X15 Sleeper Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2022 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2020 Kenworth T880 Cummins ISX / X15 Day Cab Truck

Used 2023 Kenworth T680 Cummins ISX / X15 Semi Trucks / Tractors

Used 2024 Kenworth T680 Cummins ISX / X15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2021 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Freightliner Cascadia Cummins X12 Day Cab Truck

Used 2020 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2022 International LT Cummins X15 Semi Trucks / Tractors

Used 2022 Freightliner Cascadia Detroit DD13 Sleeper Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Kenworth T680 Cummins X15 Sleeper Truck

Used 2023 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2023 Freightliner Cascadia Cummins X15 Sleeper Truck

Used 2022 Freightliner Cascadia Detroit DD15 Sleeper Truck

Used 2022 Kenworth T680 Cummins X15 Sleeper Truck

Used 2024 International LT Cummins X15 Sleeper Truck

Used 2023 Kenworth T680 Paccar MX13 Sleeper Truck

Used 2025 Freightliner Cascadia Detroit DD15 Sleeper Truck

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