Mitsubishi OEM Oil Drain Plug Crush Washers (5 Pack) - Fits EVO 8/9 / X mit-5-pack-crush-washer

If your changing your oil its a must buy. New washer every time. Not worth skimping on as once it starts dripping you will have to drain the oil just to put a new washer on 30 dollars in oil vs a 3 dollar washer not to mention the pain to lift the evo and remove the service panel.