Where is the car engine number located?

[MacVera]

The engine number is generally found on the outer surface of the engine block, or on the vehicle's nameplate or the nameplate inside the engine compartment. You can also check the engine number on the car purchase invoice, the factory certificate, the operation certificate for commercial vehicles, the vehicle purchase tax payment certificate, the registration record with public security authorities, or the vehicle insurance card. The simplest and most direct method is to look at the vehicle's administrative green book or the vehicle registration certificate. The engine number is like a person's ID number, representing each vehicle. It contains very important information about the vehicle. 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 represents 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 vehicles are required to display the 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 specifications and size of the engine within the manufacturer's product line, and multiple engines can share the same model. The engine number, however, is the production number of the engine, and each engine has a unique number. Structure of the engine number: Front part: Includes the product series code, generation symbol, and regional or company code. Manufacturers can choose appropriate letters as needed, but they must be approved and filed by the industry standardization unit. Middle part: Consists of symbols for the number of cylinders, cylinder arrangement, stroke, and cylinder diameter. Rear part: Composed of symbols for structural features and usage characteristics. Tail part: Distinguishing symbol. If differentiation is needed due to improvements or other reasons within the same series, the manufacturer selects an appropriate symbol. The rear and tail parts can be separated by a hyphen.