The Sachs Strut Assembly - 313931 is a complete suspension system component designed for use in various vehicles. It includes a strut, coil spring, and mounting hardware, all preassembled for easy installation. The strut is made of high-quality materials and features a gas-charged design for improved performance and durability. The coil spring is designed to provide optimal support and stability, while the mounting hardware ensures a secure fit. This strut assembly is a reliable and cost-effective solution for maintaining the smooth and safe operation of your vehicle's suspension system.