Arnott's new rear air spring A-3025 for the left or right side of the 2013-2018 Range Rover L405 Chassis features a multi-ply Continental ContiTech air spring bladder, heavy-duty crimping rings and high- impact plastic resin top and bottom pistons. Arnott's Rear Air Spring fits either the Left or Right side. The Arnott replacement air spring is designed, assembled and tested in the USA. Arnott backs this air spring with a Limited Lifetime Warranty in North America. Arnott recommends replacing both rear air springs at the same time.