GM Genuine Parts Shock Absorber Bellows are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These bellows protect your vehicle's shock absorbers by helping keep dirt and debris from damaging them. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). WARNING: Cancer and Reproductive Harm