Sales: (631) 982-4447
Service: (631) 982-4449

756 Smithtown Bypass,
Smithtown, NY 11787

Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews



Map and Directions

 Welcome to King O'Rourke Cadillac Buick GMC in Smithtown, NY

Whether you're searching for a new or used vehicle, researching financing options, or looking for a quick quote on a car, truck, or SUV, our friendly and professional staff at King O'Rourke Cadillac Buick GMC is ready to provide assistance for your next Smithtown Buick, Cadillac or GMC need. King O'Rourke Cadillac Buick GMC has a huge inventory of new and pre-owned Buick, Cadillac and GMC vehicles, making it one of the top dealers in Smithtown. Our commitment to the community and to our customers has made us your preferred Buick, GMC and Cadillac auto dealer.

Service & Parts in Smithtown Also Serving Port Jefferson & Long Island Cadillac, GMC & Buick Customers

King O'Rourke Cadillac Buick GMC also serves customers looking for a Long Island Buick, GMC or Cadillac dealer. Our service and parts departments are standing by to assist you with every aspect of vehicle maintenance for your new or used Long Island Buick, 


or GMC vehicle at King O'Rourke. The top priority of our dealership is to make your car buying experience the best possible. We also serve Port Jefferson Cadillac, Buick & GMC customers with new and pre-owned vehicles. Our professional staff is focused on helping our customers understand everything they need to know when buying a vehicle.

Serving Long Island Cadillac, GMC & Buick Used and Pre-Owned Vehicles

Just call or email us at King O'Rourke Cadillac Buick GMC if you have any questions regarding our specials. Come check out your next 

used Buick in Smithtown


used Cadillac in Long Island.

 King O'Rourke Cadillac Buick GMC is here to make your Smithtown, NY shopping experience hassle-free. If you don't know where we are located, please view our business hours and directions to get specific driving instructions.

King O'Rourke Cadillac Buick GMC Parts and Service

King O'Rourke Cadillac Buick GMC in Smithtown will meet and exceed all of your expectation of a service department with a second to none customer service satisfaction experience. Our highly skilled technicians are ASE certified and GM trained. No job is too large or small, so give us a call at (631) 982-4447 with any of your automotive needs, service appointment or parts order.


 ** For your convenience, our Service Department is now open until 6:00pm Monday - Friday **

View Service Specials

Service | Parts Order Form | GM Accessories

Buick: Enclave | Encore | LaCrosse | Regal | Verano
Cadillac: ATS | ATS Coupe | CTS Sedan | Escalade | SRX | XTS
GMC: Acadia | Canyon | Savana Cargo Van | Savana Passenger Van | Sierra 1500 | Sierra 2500HD | Sierra 3500HD | Terrain | Yukon