6R0 121 109 AA · Coolant hose Audi genuine (OEM) part number 6R0 121 109 AA, Coolant hose. Fitted on (3)HOSE — pos 8 (KAT708.BIN)HOSE — pos 9 (KAT708.BIN)HOSE — pos 8 (KAT708.BIN) Open the interactive exploded diagram →