AC Delco focuses on creating a hassle-free service for all vehicles, not only those under the General Motors brand. The company manufactures AC Delco batteries, filters, brakes, air conditioning units, spark plugs, alternators and starters, shocks and struts. Smaller, more accessory-like parts are also available, but not a part of the main product line of the company.
The AC Delco battery catalogue lists parts with competitor information as well as use. Each part is also discoverable via searching for a part of your specific car model.