The catalog does not store parts as simple text files; it utilizes relational databases linking three elements:
: Displays both the GM part number (often printed on the detail itself) and the catalog order number used for purchasing. opel epc online catalog work
: For each component, the EPC provides the official part number (often showing both GM and catalog numbers), a description, and supersession tracking , which identifies if a part has been updated or replaced by a newer version. The catalog does not store parts as simple
The EPC serves multiple roles across the automotive supply chain: To get started, you need access to either
: Users can view high-resolution assembly drawings that show how individual components—such as gaskets, fasteners, and internal engine parts—fit together.
To get started, you need access to either an official paid subscription (via GM or Opel’s service portal) or a third-party licensed mirror. Here is the typical workflow: