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Trust the Genuine GM Parts brand when you are looking for quality auto parts, engine repair parts, or a replacement engine. Take advantage of over 100 years of automotive manufacturing experience and purchase your replacement engine from the manufacturer that knows your vehicle best. You can have your replacement engine installed or repaired by the Certified Service technicians at your Buick dealership.

Why Genuine GM Parts Engines?


Genuine GM Parts Engines are engineered and built to meet or exceed the Original Equipment Manufacturer's (OEM) specifications. We apply the latest engineering advancements – learned from decades of manufacturing and service expertise. Genuine GM Parts Engines go through months of rigorous validation and testing to ensure optimal performance and durability.

Genuine GM Parts Engines provide:

  • The same original equipment engineering standards that go into every new Buick vehicle
  • The latest enhancements and improvements
  • Validation and durability standards equal to those in new Buick vehicle engines
  • Test certification under stringent and demanding conditions at state-of-the-art labs


You can be confident that the Genuine GM Parts Engine built for your vehicle will function as originally designed and engineered. That reliability is backed by a fully transferable Limited Warranty on parts and labor for 3 years or 100,000 miles, whichever comes first.**