Opel Vauxhall Astra G Mk4 1.2 16v EGR Valve (X12 XE engine) Genuine 90571101. Despatched from UK warehouse. New genuine GM Vauxhall part 90571101 Exhaust gas recirculation valve (EGR) Application Vauxhall Astra Mk4 1.2 16v Opel Astra G 1.2 16v Engine Code X12XE [LW4] Pierburg part numbers 7.22414.02.0 7.22414.52.0. This is a genuine Vauxhall EGR Valve. We guarantee that the part you receive will be a genuine OEM part. Return must be opened within 14 days from the day you received the item. If you are not sure just send us a message and we will try our best to help. Any evidence of the item being used voids your return.