4D0 819 373 G · Heating hose Audi genuine (OEM) part number 4D0 819 373 G, Heating hose. Fitted on (2)HOSE — pos (34) · AAH,AEJ,ACK (KAT152.BIN)HOSE — pos (34) · AAH,AEJ (KAT153.BIN) Open the interactive exploded diagram →