057 121 177 · Coolant hose Audi genuine (OEM) part number 057 121 177, Coolant hose. Fitted on (3)HOSE — pos 49 (KAT675.BIN)HOSE — pos 49 (KAT696.BIN)HOSE — pos 49 (KAT771.BIN) Open the interactive exploded diagram →