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MJM Auto's philosophy is "a great reputation is priceless." Repeat customers are a substantial percentage of our business. We offer a 3 month/3K mile to a 5 year/100K mile extended warranty on every vehicle. MJM Auto is a proud member of the Better Business Bureau. We offer a wide variety of vehicles to choose from so call us, e-mail us or stop on by.

MJM Auto Questions

The MJM Auto annual revenue was $3 million in 2026.

MJM Auto is based in Ofallon, Missouri.

The NAICS codes for MJM Auto are [441, 4411, 441110, 44111, 44].

The SIC codes for MJM Auto are [55, 551, 5511].

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