DeCosky GM Center

510-550 Harcourt Rd, Mt Vernon, OH 43050

New 877-441-3034 New 877-441-3034
Used 866-963-0739 Used 866-963-0739
Service 866-634-5214 Service 866-634-5214

Nobody Sells For Less!


Hours of Operation

Monday
8:00 AM – 8:00 PM
Tuesday
9:00 AM – 6:00 PM
Wednesday
9:00 AM – 8:00 PM
Thursday
9:00 AM – 6:00 PM
Friday
9:00 AM – 6:00 PM
Saturday
9:00 AM – 5:00 PM
Sunday
Closed

Contact This Dealer

New Cars

877-441-3034, ask for Robert Devlin
Email this dealer Cancel

Used Cars

866-963-0739, ask for Robert Devlin
Email this dealer Cancel

Service

866-634-5214

As your Mount Vernon Buick, Cadillac, Chevrolet, and GMC dealer we offer a friendly and knowledgeable sales staff, body and service shop, and even loaner cars. This is why Mount Vernon Chevrolet, Buick, GMC, and Cadillac customers alike make Decosky GM Center their new and used car truck dealer.We carry a large selection of new and used cars, trucks, and SUV's, as well as making it easy to get a quote, research financing, calculate payments or contact our service department online. No dealer covers Knox County better than Decosky GM, your Mount Vernon, OH GM dealer

New Cars

This dealer has 96 new vehicles.

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Used Cars

This dealer has 108 used vehicles.

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Service & Repair

This dealer has:

  • Warranty for parts and service
  • Expert technicians
  • Multiple service bays
  • Brand-name certified service center
  • Quality manufacturer's parts
  • Convenient hours and amenities

Learn More  | Pricing

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Dealer Reviews

Overall

4.4 out of 5.0
  • Customer Service
  • Buying Process
  • Quality of Repair
  • Overall Facilities

24 out of 26 people recommended this dealer.

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Latest Offer

2016 GMC Terrain $1500 Conquest Bonus Cash

on the 2016 GMC Terrain

Go to Special Offers

Hours of Operation

Monday
8:00 AM – 8:00 PM
Tuesday
9:00 AM – 6:00 PM
Wednesday
9:00 AM – 8:00 PM
Thursday
9:00 AM – 6:00 PM
Friday
9:00 AM – 6:00 PM
Saturday
9:00 AM – 5:00 PM
Sunday
Closed

Contact This Dealer

New Cars

877-441-3034, ask for Robert Devlin
Email this dealer Cancel

Used Cars

866-963-0739, ask for Robert Devlin
Email this dealer Cancel

Service

866-634-5214