Historically, parts catalogs were distributed via DVD or CD-ROM (known as "TIS" or "EPC" discs) to be installed on local computers. These required periodic updates to remain accurate.
The EPC is organized by "Group Numbers." For a water pump: opel epc online catalog
Have you tried a specific Opel EPC tool? Which one—official or free—gave you the best results? Check the user reviews below to see which catalog our community recommends for the latest 2024-2025 models. Historically, parts catalogs were distributed via DVD or
Instructions for free Opel vehicles Original spare parts catalog or parts businesses)
Actionable steps to evaluate and adopt Opel EPC Online (for workshops, fleets, or parts businesses)