Where to Find the Engine Number of a Car?

[Davis]

Locating the engine number: The engine number can be found on the outer surface of the engine block, the vehicle's registration certificate, the motor vehicle registration card, the purchase invoice, the factory certificate of compliance, the operating permit for commercial vehicles, the vehicle purchase tax payment certificate, the public security registration record, 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 crucial information about it. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, industry or company practices, and the engine's attributes. It indicates information such as the manufacturer, specifications, performance, characteristics, 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 vehicles are required to display the professional manufacturer's name, model, and production number. It's important to note that the engine number is not the same as the engine model. The engine model refers to the specification and size of the engine within the manufacturer's lineup, and multiple engines can share the same model. The engine number, however, is the production number of the engine, unique to each individual engine. Composition of the engine number: Prefix: Includes product series code, generation symbol, and regional or company code, selected by the manufacturer as needed but must be approved and recorded by the industry standardization unit. Middle section: Consists of symbols for the number of cylinders, cylinder arrangement, stroke, and cylinder diameter. Suffix: Comprises symbols for structural features and usage characteristics. End: Distinguishing symbol. When differentiation is needed due to improvements or other reasons within the same series, the manufacturer selects an appropriate symbol, which may be separated from the suffix by a hyphen (-).