4H2 819 372 K · Coolant hose Audi genuine (OEM) part number 4H2 819 372 K, Coolant hose. Fitted on (3)HOSE — pos 4 (KAT696.BIN)HOSE — pos 17 (KAT771.BIN)HOSE — pos 17 (KAT771.BIN) Open the interactive exploded diagram →