443 121 106 · Coolant hose Audi genuine (OEM) part number 443 121 106, Coolant hose. Fitted on (3)HOSE — pos 5 (KAT005.BIN)HOSE — pos 5 (KAT058.BIN)HOSE — pos 5 (KAT073.BIN) Open the interactive exploded diagram →