N90 666 003 · O-ring SEAT genuine (OEM) part number N90 666 003, O-ring. Fitted on (3)SEAL. RING — pos 3 (KAT664.BIN)SEAL. RING — pos 3 (KAT664.BIN)SEAL. RING — pos 14 (KAT664.BIN) Open the interactive exploded diagram →