4H2 819 376 B · Coolant hose Audi genuine (OEM) part number 4H2 819 376 B, Coolant hose. Fitted on (3)HOSE — pos 19 (KAT696.BIN)HOSE — pos 14 (KAT771.BIN)HOSE — pos 14 (KAT771.BIN) Open the interactive exploded diagram →