4H2 819 337 C · Coolant hose Audi genuine (OEM) part number 4H2 819 337 C, Coolant hose. Fitted on (3)HOSE — pos 16 (KAT696.BIN)HOSE — pos 6 (KAT771.BIN)HOSE — pos 6 (KAT771.BIN) Open the interactive exploded diagram →