N90 368 401 · O-ring Porsche genuine (OEM) part number N90 368 401, O-ring. Fitted on (3)SEAL. RING — pos 18 (KAT1020.BIN)SEAL. RING — pos 18 (KAT1027.BIN)SEAL. RING — pos 18 (KAT1028.BIN) Open the interactive exploded diagram →