4F0 121 447 · Coolant hose Audi genuine (OEM) part number 4F0 121 447, Coolant hose. Fitted on (2)HOSE — pos 30 · PR:8Z9 (KAT448.BIN)HOSE — pos 30 · PR:8Z9 (KAT458.BIN) Open the interactive exploded diagram →