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Car dealers in O'fallon, MO

37 car dealers listed in O'fallon, Missouri. 37 with a phone number and 33 with a website.

O'fallon accounts for 0.8% of the car dealers listed in Missouri.

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Quick answer

O'fallon, MO has 37 car dealers listed on USA Business Search. 37 list a phone number and 33 list a website. The most listings are in ZIP codes 63366, 63368.

Updated October 2026
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How to choose a dealership in O'fallon

  • Ask for a written estimate before any work starts, and approval before extra repairs.
  • Ask what warranty covers parts and labor.
  • Keep your old parts or ask to see them if a repair seems expensive.

Check the business: confirm a company's registration with the state in our Missouri business lookup guide, and licensed trades in the contractor license lookup guide.

Common questions

How many car dealers are listed in O'fallon, Missouri?

USA Business Search shows 37 car dealers in O'fallon. 37 list a phone number and 33 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 63366, 63368.

How do I choose a dealership in O'fallon?

Ask for a written estimate before any work starts, and approval before extra repairs. Ask what warranty covers parts and labor. Keep your old parts or ask to see them if a repair seems expensive. Check the license or registration through the Missouri business lookup guide.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

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