Delphi Fuel Pump Hanger Assembly for Cadillac HP10016. With Harness Code # CAA; Fuel tank contamination is the leading cause of premature fuel pump failure. To reduce risk of contaminating the replacement pump, itâ??S recommended to clean the fuel tank before installing a new pump. Use of fuel tank cleaning kit FC01 is recommended. Product Notes - If the product notes states "with" or "without", this means this will fit if your vehicle is equipped "with" or "without" that feature. For example, if it states "with fog lamps", this means your vehicle must be equipped with fog lamps. This does not mean that fog lamps are included. HOW TO CHECK VEHICLE FITMENT.