Where is the vehicle engine number located?

[AllieLee]

Locating the engine number: The engine number can be found on the outer surface of the engine block, the vehicle registration certificate, the motor vehicle registration certificate, the purchase invoice, the factory certificate of compliance, the operation permit for commercial vehicles, the vehicle purchase tax payment certificate, public security authority registration records, the vehicle insurance card, the B-pillar nameplate of the motor vehicle, and the actual engine (usually on the engine nameplate). The engine number is like a person's ID number, representing each vehicle and storing very important information about the vehicle. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and engine attributes for a batch of identical products. It indicates information such as the manufacturer, specifications, performance, features, technology, purpose, and batch of the engine, including fuel type, number of cylinders, displacement, and static braking power. Engines installed in passenger cars or multi-purpose passenger vehicles are required to display the professional manufacturer, model, and production number of the engine. It is important to note that the engine number is not the same as the engine model. The engine model refers to the specifications and size of the engine within the manufacturer's lineup, and engine models can be the same. The engine number refers to the production number of the engine, where each engine can only have one unique engine number, and no two engines share the same number. Composition of the vehicle engine number: Prefix: Includes the product series code, generation symbol, and regional or corporate code. Manufacturers may choose appropriate letters as needed, but these must be approved and recorded by the industry standard's regulatory body. Middle section: Consists of symbols representing the number of cylinders, cylinder arrangement, stroke, and cylinder diameter. Suffix: Comprises symbols indicating structural features and usage characteristics. End: Distinguishing symbol. When differentiation is needed due to improvements or other reasons within the same product series, manufacturers may select appropriate symbols for representation, with the suffix and end potentially separated by a hyphen.