This is a genuine OEM Toyota Engine Control Unit (ECU) for a 2004 Toyota Highlander with a 3.3L engine and automatic transmission. It is a direct replacement with easy installation, featuring 5-pin terminals and a surface finish as shown in the picture. The ECU comes with a 1-month manufacturer warranty and is compatible with interchange part numbers 275000-8241 and 8966148650. The item includes only the ECU and is 8 inches in length, 7 inches in width, and 3 inches in height. It is not a vintage part and has a maximum amperage of unknown. The fitment type is direct replacement and the terminal type is pin.