The Arnott Industries Suspension Air Spring Rear Left (X5) - A2502 is a high-quality replacement air spring designed for use on the rear left side of the BMW X5. This air spring is built to OE specifications and is made with durable materials to ensure long-lasting performance and reliability. It is designed to provide a smooth and comfortable ride, while also maintaining proper vehicle height and suspension function. This air spring is a direct fit replacement and does not require any modifications for installation. It is backed by Arnott's limited lifetime warranty for added peace of mind.