GM Genuine Parts Engine Water Pump Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help prevent leakage around your water pump shaft and protect the bearing assembly from unwanted exposure to coolant and abrasive contaminants, helping to preserve the integrity of your water pump and cooling system. 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).