4H0 121 107 R · Vent hose Audi genuine (OEM) part number 4H0 121 107 R, Vent hose. Fitted on (3)HOSE — pos 9 (KAT696.BIN)HOSE — pos 9 (KAT771.BIN)HOSE — pos 9 (KAT771.BIN) Open the interactive exploded diagram →