1990 Volkswagen Corrado Engine: 1.8L L4; 50 mm. 1992 Volkswagen Corrado Engine: 1.8L L4; 50 mm. 1991 Volkswagen Corrado Engine: 1.8L L4; 50 mm. Part Type: Engine Water Pump Housing O-Ring. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.