The Sachs Strut Assembly - 556838 is a suspension component for vehicles that helps absorb shock and maintain stability while driving. It is made up of a strut, which is a combination of a shock absorber and a coil spring, and is designed to fit specific makes and models of cars. The assembly is responsible for supporting the weight of the vehicle and providing a smooth ride by dampening vibrations and impacts from the road. It also helps to keep the wheels in contact with the road surface for better handling and control. The Sachs Strut Assembly - 556838 is a high-quality and reliable product that is essential for the proper functioning of a vehicle's suspension system.