The Samsung Washing Machine Shock Absorber is a rear shock that prevents the washer from vibrating by absorbing the movements of the washer tub. The Samsung DC66-00470B Shock Absorber is a genuine OEM (Original Equipment Manufacturer) part, designed and engineered to exact specifications. In the event that your washer is running unpredictably during the spin cycle or is running unstablely, you probably need to replace the shock absorbers. The replacement part is made of durable, high-quality material and has been well tested by the manufacturer.