Where are the vehicle frame number and engine number located?

[StVera]

The vehicle frame number and engine number are generally found on the vehicle's nameplate, the nameplate inside the engine compartment, or the purchase invoice for the engine number; at the lower left corner of the front windshield; the factory certificate contains the engine number; the operating license of commercial vehicles can be used to query the engine number; the vehicle purchase tax payment certificate includes the engine number; the registration record at the public security authority contains the engine number; the vehicle insurance card has the engine number; the simplest and most direct method to check both numbers is to look at the vehicle registration book or the vehicle's driving license. 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 conventions, and the attributes of the engine, 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, etc. Engines installed in passenger cars or multi-purpose passenger vehicles are marked with the professional manufacturer's name, model, and production number as required. 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 range, 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: Front part: Includes the product series code, generation symbol, and regional or company code, which are chosen by the manufacturer as needed, but must be approved and filed by the industry standard authority. 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: Differentiation symbol. When differentiation is needed due to improvements or other reasons within the same series, the manufacturer selects an appropriate symbol to indicate this, with the rear and tail parts possibly separated by a hyphen. Vehicle frame number: Abbreviated as VIN, known in Chinese as the vehicle identification code (hereinafter referred to as the frame number). It is a set of characters assigned by the car manufacturer to identify each vehicle. The frame number consists of 17 digits and letters, arranged in such a way that no two vehicles of the same model will have the same number within 30 years, ensuring its uniqueness.