OER Parts offers a wide selection of Cooling System Components for your Buick Regal. OER Parts offers Buick Regal Molded Radiator Hoses, Buick Regal Upper Radiator Hoses, Buick Regal Lower Radiator Hose, Buick Regal Water Pump Bypass Hose, Buick Regal Oil Cooler to Radiator Hose, Buick Regal Throttle Body to Radiator Coolant Hose, and Buick Regal Universal Engine Coolant Plumbing Set.