4A0 819 373 AE · Coolant hose Audi genuine (OEM) part number 4A0 819 373 AE, Coolant hose. Fitted on (2)HOSE — pos (5) · 1 (KAT168.BIN)HOSE — pos (5) · 1 (KAT189.BIN) Open the interactive exploded diagram →