What Is a Chassis Number?
A chassis number is another name for the Vehicle Identification Number (VIN), the unique 17-character code stamped on a vehicle's frame or chassis. In the U.S. it's called the VIN; in the UK, India, Australia and much of Asia the same code is called the chassis number. You can decode any chassis number for free with the VinSpecs VIN decoder.
Chassis Number vs VIN vs Engine Number
- Chassis number = VIN, the 17-character identifier for the whole vehicle
- Engine number, a separate code stamped on the engine block only
- License plate, a state-issued number that can change; not permanent like the chassis number
Where to Find the Chassis Number
- Driver-side dashboard, visible through the windshield
- Driver-side door jamb sticker
- Stamped on the chassis frame, firewall or under the hood
- Vehicle title, registration and insurance documents
How to Decode a Chassis Number
Because the chassis number is the VIN, you decode it exactly the same way: enter the 17 characters into the VinSpecs decoder to reveal the make, model, year, engine, plant and open recalls.
Because the chassis number is the VIN, you decode it exactly the same way: enter the 17 characters into the VinSpecs decoder to reveal the make, model, year, engine, plant and open recalls.
Frequently Asked Questions
Is the chassis number the same as the VIN?
Yes. In many countries the VIN is called the chassis number, it's the same unique 17-character vehicle identifier.
Where is the chassis number located?
On the dashboard through the windshield, the driver-side door jamb, the chassis frame, and the vehicle's title and registration.
How do I decode a chassis number?
Enter the 17-character chassis number into the free VinSpecs VIN decoder to see the full vehicle specifications.
Related Guides
Sources: ISO 3779 · NHTSA vPIC.