078 133 789 B · Vacuum hose Audi genuine (OEM) part number 078 133 789 B, Vacuum hose. Fitted on (3)HOSE — pos (21) (KAT249.BIN)HOSE — pos (21) (KAT264.BIN)HOSE — pos (21) (KAT417.BIN) Open the interactive exploded diagram →