
The Gates upper molded coolant hose for 2004–2009 Audi S4 (4.2L V‑8) is a vehicle‑specific replacement hose crafted to restore the upper portion of the cooling circuit. Its molded shape follows factory plumbing to reconnect engine and cooling components. Replace an aging or damaged upper hose to preserve coolant flow and support stable operating temperatures for the S4's V8 engine.
Gates 04-09 Audi S4 V-8 4.2L Upper Molded Coolant Hose