ACDelco Gold (Professional) Wheel Bearing and Hub Assemblies are the high quality alternative to Original Equipment (OE) parts. These unitized wheel bearings contain dual ball or tapered roller bearing elements sealed with lifetime lubrication. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional or ACDelco Advantage.