4K1 819 344 H · Coolant hose Audi genuine (OEM) part number 4K1 819 344 H, Coolant hose. Fitted on (3)HOSE — pos 1 (KAT430.BIN)HOSE — pos 1 (KAT435.BIN)HOSE — pos 1 (KAT577.BIN) Open the interactive exploded diagram →