431 819 371 J · Coolant hose Audi genuine (OEM) part number 431 819 371 J, Coolant hose. Fitted on (3)HOSE — pos 46 (KAT058.BIN)HOSE — pos 46 (KAT062.BIN)HOSE — pos 46 (KAT073.BIN) Open the interactive exploded diagram →