4H0 121 471 F · Coolant hose Audi genuine (OEM) part number 4H0 121 471 F, Coolant hose. Fitted on (3)HOSE — pos 6 (KAT696.BIN)HOSE — pos 6 (KAT771.BIN)HOSE — pos 4 (KAT771.BIN) Open the interactive exploded diagram →