Where is the engine serial number?

[AlinaLynn]

Engine serial number is located on the side of the engine block. The engine serial number cannot be altered. When the engine number or vehicle identification number becomes illegible or damaged due to wear, corrosion, accidents, etc., you can apply for record filing at the vehicle management office of the registration location. There are many engines of the same model, but no two engines share the same serial number. When every motor vehicle is licensed, the engine number must be registered with the vehicle management office. Engine model numbers generally consist of four parts: Part 1: Includes product series code, replacement symbol, and regional/enterprise code. Some manufacturers may select appropriate letters as needed, but they must be approved and filed by the industry-standard regulatory unit. Middle section: Composed of cylinder number symbol, cylinder arrangement symbol, stroke symbol, and cylinder diameter symbol. Rear section: Consists of structural characteristic symbol and usage characteristic symbol. Tail section: Distinguishing symbol. When products in the same series need differentiation due to improvements or other reasons, manufacturers should select appropriate symbols, indicating that the rear and tail sections may be separated by a "-".