
The Gates molded upper coolant hose for 1988–1990 Cadillac DeVille V8 4.5L applications is a direct-fit replacement that routes coolant between engine and upper radiator connections. The molded configuration preserves factory hose routing and attachment points, making it a straightforward service part for replacing failed upper hoses and restoring correct coolant circulation for the listed DeVille models and engine.
Gates 88-90 Cadillac Deville V-8 4.5L Upper Molded Coolant Hose