The Bilstein B6 4600 Series Monotube Shock Absorber is an upgrade designed specifically for the 2019-2021 Dodge Ram 3500 equipped with Factory Rear Air Suspension. Engineered to improve handling, stability, and ride comfort while maintaining the vehicle's towing and hauling capabilities. Featuring a high-pressure gas monotube design for consistent, fade-free performance. This part is sold as a single unit. Included in the box: 1x Shock Absorber (Part Number: 24-302302). Ideal for drivers looking for a significant performance increase over original equipment.