Where is the engine number located on a Lexus IS250?

The engine number on a Lexus IS250 is typically located on the engine block, near the front of the engine, on the driver's side. It may be stamped onto a flat surface or a metal plate. To find it, you may need to look under the hood and check around the area where the engine meets the transmission. If necessary, refer to the owner's manual for specific details or diagrams.