Where is the 9-digit engine number located?

[DelFrank]

Locations to check the engine model number: exterior surface of the engine block, vehicle registration certificate, motor vehicle registration document, purchase invoice, factory certificate of compliance, operating license for commercial vehicles, vehicle purchase tax payment certificate, public security authority registration records, vehicle insurance card, and the actual engine (usually on the engine nameplate). Engine numbers are like a person's ID number, representing each vehicle and storing crucial information about it. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and the engine's attributes. It is used to indicate information such as the manufacturer, specifications, performance, features, technology, purpose, and production 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's name, model, and production number. 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 product line, and multiple engines can share the same model. The engine number, however, refers to the production serial number of the engine, with each engine having a unique number that cannot be duplicated. 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 standardization authority. Middle section: Consists of symbols for the number of cylinders, cylinder arrangement type, stroke, and cylinder diameter. Suffix: Comprises symbols for structural features and usage characteristics. Tail section: Distinguishing symbol. When differentiation is required due to improvements or other reasons within the same product series, the manufacturer selects an appropriate symbol. The suffix and tail sections may be separated by a hyphen (-).