4F1 819 350 R · Heating hose Audi genuine (OEM) part number 4F1 819 350 R, Heating hose. Fitted on (3)HOSE — pos (3) · BVJ (KAT448.BIN)HOSE — pos 3 (KAT603.BIN)HOSE — pos 3 (KAT648.BIN) Open the interactive exploded diagram →