How to Check the Engine Number?

1 Answers
BarrettRose
07/29/25 12:14pm
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. The simplest and most direct method is to check the vehicle's administrative green book or the vehicle registration certificate. The engine number, like a person's ID number, represents each vehicle and contains crucial information about the car. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, industry practices, and engine attributes for a batch of identical products. It indicates 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 professional manufacturer, 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, is the production serial number of the engine, and each engine has a unique number. Composition of the Vehicle Engine Number: Prefix: Includes the product series code, generation symbol, and regional or company code, which are selected by the manufacturer as needed and must be approved and filed by the industry standardization unit. Middle Section: Consists of symbols for the number of cylinders, cylinder arrangement, stroke, and bore diameter. Suffix: Comprises symbols for structural features and usage characteristics. Tail: A distinguishing symbol. When differentiation is needed due to improvements or other reasons within the same product series, the manufacturer selects an appropriate symbol. The suffix and tail can be separated by a hyphen (-).
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