Strut and spring assemblies are integrated components of a vehicle’s suspension system, typically utilized on MacPherson strut-type suspensions. These units combine a shock absorber, coil spring, and structural mounting components into a single, self-contained unit. The spring supports vehicle weight and absorbs road impacts, while the strut dampens spring oscillation and maintains wheel alignment. Key features include spring rates calibrated for vehicle load, valved dampers optimized for ride control, and robust construction for durability under stress. Complete strut assemblies are frequently replaced as a unit to restore ride height, handling, and damping performance.