Upgrade your Opel Astra J MK6 1.7 CDTi 2009-2015 with this high-quality rear gas shock absorber. It comes with a 3-year warranty period and is designed with a twin-tube gas pressure system for better performance and durability. This shock absorber is made of steel and is compatible with both the left and right sides of the vehicle. The package includes one shock absorber, and it is easy to instal with 100% accuracy of fit. It is also easy to replace, making it a convenient upgrade for your car's suspension system. This shock absorber is sealed and has a reference OE/OEM number of 436821, 13420233, 13279267, 13279266, 13420232, 13279261, 13279260, 13315242, 13315244, 13279264, 133