1990 Cadillac Fleetwood 4.5L V8 GAS. 1991-1992 Cadillac Fleetwood 4.9L V8 GAS. Notes: Molded Heater Hose. Has all the quality features of Gates molded coolant hose and similar to OEM specifications. Engineered to resist electrochemical degradation - the leading cause of hose failure.