General description Car Rear Trunk Lift Support Shocks Gas Springs Damper designed specifically for BMW Z4 models from 2003 to 2009. These gas springs provide reliable support for the rear trunk, ensuring smooth operation and durability. Technical specifications Part Number: 51247016186 Material: Metal Color: Black Measurement allowed error: +/- 1-3 cm Compatibility and accessories Fits BMW Z4 models from 2003-2008: 2.5i Convertible 3.0i Convertible M Roadster Convertible Roadster 3.0i Convertible Roadster 3.0si Convertible Installation Easy to install with simple hand tools. Usage Special sealed guide block prevents leaking under high pressure. Concave seal prevents oil from leaking. Self-cleaning piston parts ensure smooth operation and consistent performance. Cylinder made of seamless steel pipe for longer life. Other information