Arnott's new advanced BMW X5 front air spring allows you to economically replace just the dry-rotted air spring portion of your BMW front air suspension strut. The Arnott-designed part is designed and assembled in the USA and features a new upper mount that replicates the O.E. top, multi-ply ContiTech air bladder, heavy duty crimping rings and piston. Arnott's new BMW air springs will provide your X5 with superior strength and excellent handling. A detailed installation manual is available to walk you through the easy assembly process.