Astra J Part Numbers Genuine Part Number: 13574868 (Opel) / 13574865 (Vauxhall) (OEM) Astra J / Insignia Part Numbers Genuine Part No: 13279279 13279280 (Opel) / 13279278 (Vauxhall) Can also be used for VXR models (this remote has VXR print) (OEM) Genuine Part No: 13404601 Can also be used for OPC models (this remote has OPC print) (OEM) Genuine Part No: 13404602 (OEM)
Writing on side of genuine remote: Valeo 5WK50079 13574865 (Opel and Vauxhall Works also: Witte GM13500233 (Vauxhall badge)