Cylinder Head Gasket Set OPEL ASTRA J 16V 1.6 115 A16XER (12/2009-). This product listing includes every component that you can see in the main image. All AJUSA products are designed to meet or exceed OEM standard quality and performance requirements. OEM Cross Reference Numbers. If you aren’t sure that this product will fit your vehicle: please message us your 17-digit VIN number (found on your V5 registration document) and we will check. If we have compatible engine code information listed above, you should also make sure that your engine matches. Please make yourself aware of the dispatch times for this item.