4M0 809 937 B · Hose Audi genuine (OEM) part number 4M0 809 937 B, Hose. Superseded by: 4K8 809 906 B Fitted on (2)HOSE — pos 5 (KAT435.BIN)HOSE — pos 5 (KAT538.BIN) Open the interactive exploded diagram →