4H1 819 674 AE · Coolant hose Audi genuine (OEM) part number 4H1 819 674 AE, Coolant hose. Fitted on (2)HOSE — pos 4 · PR:9M0+T8T, (KAT696.BIN)HOSE — pos 4 (KAT771.BIN) Open the interactive exploded diagram →