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4 min read
Simply put, a Chassis number is the unique identifier given to each vehicle during production. It is crucial for
many aspects of automobile ownership and legality.
The Chassis number, often synonymous with the Vehicle Identification Number (VIN), is a code unique to every
vehicle. Think of it as a car's fingerprint or social security number – it is distinctive and offers a range of
information about the vehicle. It includes details about the manufacturer, the car model, and other aspects like the Electric Vehicle (EV) if applicable, the place and year of production, and the serial number.
A chassis number typically contains 17 characters, including both letters and numbers. While it may seem like an arbitrary set of characters, much like the data read from Diagnostic Trouble Codes (DTC), each segment conveys specific information about the vehicle.
Characters 1-3: These are known as the World Manufacturer Identifier (WMI). They denote the country
where the manufacturer is located and the vehicle type.
Characters 4-9: This is the Vehicle Descriptor Section (VDS). It contains information about the
model, the body type, and the engine code.
Characters 10-17: This is the Vehicle Identifier Section (VIS). It offers information about the
manufacturing year and the production plant, and it also includes a unique serial number of the vehicle.
Now that we've answered 'what is a chassis number?' and explained its components, let's delve into its importance.
The Chassis number is crucial for several reasons:
Vehicle Identification: As each chassis number is unique, it is the best way to identify a specific
Legal Necessities: For vehicle registration, insurance, and resale, the chassis number is a legal
requirement. It's a vital piece of information to prove a car's ownership.
Tracking Vehicle History: The chassis number helps trace the vehicle's history, including service
records, accident history, and previous ownership.
Understanding the chassis number can be very beneficial for both current car owners and prospective buyers. It not
only provides information about the car's manufacturing details but is also a vital component in managing its legal
aspects and history. So, the next time someone asks, "what is a chassis number?" you'll be well-equipped to explain.
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