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There is no sufficient amount, I would have to say millions and millions. A company like J.B. Hunt has about 25,000 trucks, and Snider has about 45,000 trucks (which are replace every so often) They are millions of company's with 100-500 trucks, who replace there trucks every so often. And millions of owner operators who own there own truck. Don't get me started on lease owner operators.

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The above numbers are greatly exaggerated. J.B. Hunt has a total of around 16,000 - 17,000 employees, not all of which are drivers. The number of power units they operate numbers about 13000, give or take. Schneider National operates about 14,000 power units. And the "millions" figure for small companies and owner/operators is also grossly exaggerated.

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Q: How many tractor trailer trucks are in the US?
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How many trucks there are in US?

a bunch There are 15.5 million trucks in the US and 2 million of them are tractor trailers according to Truck-Info


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Is a dump truck considered a tractor trailer type vehicle?

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