Can the engine number be rusted away?

[KinsleyFitz]

Engine numbers can be rusted away. Reasons why engine numbers get rusted: The engine number is the factory number stamped by the manufacturer on the engine block, made of metal material. After prolonged use, it can oxidize and rust due to exposure to air or become corroded. Methods to check the engine number: The engine number can be found in various places such as the vehicle registration certificate, motor vehicle registration certificate, purchase invoice, factory certificate, operation certificate for commercial vehicles, vehicle purchase tax payment certificate, registration with public security authorities, vehicle insurance card, and on the actual engine (usually on the engine nameplate).