4E0 121 448 AH · Coolant hose Audi genuine (OEM) part number 4E0 121 448 AH, Coolant hose. Fitted on (3)HOSE — pos 16 (KAT291.BIN)HOSE — pos 19 (KAT291.BIN)HOSE — pos 19 (KAT635.BIN) Open the interactive exploded diagram →