The Bilstein B6 4600 Series 24-240390 is a high-performance monotube shock absorber specifically designed for heavy-duty trucks. Engineered to provide improved handling and stability without compromising ride comfort, this shock is an ideal upgrade for stock height vehicles. Features include a 46mm digressive piston, a high-pressure nitrogen gas charge, and a vehicle-specific valve setting. This product is sold as a single unit. Package contents: 1x Shock Absorber (24-240390), 1x Mounting Hardware Kit (including bushings, washers, and lock nut).