Chassis Number Lookup — Find the Car Type Free
Your chassis number is your VIN. Enter the 17-character code to decode the make, model, year, body, and engine instantly — then see the full history. Whether your document calls it a chassis number, frame number, or VIN, this is the one tool that reads it.
Search a Car by Chassis Number
Enter the 17-character chassis number (VIN) — we'll return the car type, full specification, and history
Free · No sign-up · Instant car type
Chassis Number vs VIN — They're the Same Thing
This trips up buyers every day. The short answer: on any vehicle built since 1981, the chassis number and the VIN are one and the same 17-character code. Only the name changes by country.
UK · EU · Australia · India · Middle East · Africa
- ·The everyday term on a V5C, RC, or registration certificate.
- ·Stamped on the chassis and shown on the manufacturer's plate.
- ·17 characters under the global ISO 3779 standard.
USA · Canada (and the technical/legal name everywhere)
- ·Vehicle Identification Number — same 17 characters.
- ·On the title, dashboard, and door jamb.
- ·Identical structure: WMI + descriptor + serial.
Quick test:count the characters. If it's exactly 17 with no letters I, O or Q, it's a modern chassis number (VIN) and the tool above will decode it. If it's shorter, you have a pre-1981 or domestic-market chassis number that needs manufacturer records instead.
How to Look Up a Car by Chassis Number — Step by Step
Five steps from “where is it?” to a full car-type identification and history. Works for cars, vans, trucks, and motorcycles with a standard 17-character chassis number.
Find your chassis number
It lives in several places: on the registration document (V5C in the UK, the registration certificate elsewhere), through the bottom of the windscreen, on a plate in the engine bay, stamped on the chassis rail or firewall, and on the driver-side door jamb sticker. Every copy should match.
Read all 17 characters
Modern chassis numbers are exactly 17 characters. Copy them precisely — the letters I, O and Q are never used, so anything that looks like one is really a 1 or a 0. A single wrong character decodes a different vehicle.
Decode it instantly
Enter the chassis number above. The decoder reads the WMI (manufacturer + country), the descriptor section (model, body, engine, restraints), the model-year character, and the plant code — returning the full car type in seconds, free.
Match it to the listing or document
Confirm the decoded make, model, year and body match what the seller or paperwork claims. A mismatch between the decoded car type and the advertised vehicle is an immediate red flag for a cloned or misrepresented car.
Extend to a full history check
When you're buying, take the same chassis number further into a full vehicle history report — title brands, odometer trail, accident records, theft and salvage data — so you know the car's past, not just its specification.
What Each Part of a Chassis Number Means
A 17-character chassis number isn't random — it's a structured code. Knowing the segments tells you what the decoder is reading to identify the car type.
| Position | Segment | What it tells you |
|---|---|---|
1–3 | WMI | World Manufacturer Identifier — the make and the country of origin. This is how the tool knows a car is, say, a German-built BMW or a US-built Ford. |
4–8 | VDS | Vehicle Descriptor Section — model, body style, engine, and restraint system. This is the core of the 'car type' answer. |
9 | Check digit | A calculated digit that validates the whole number. If it doesn't compute, the chassis number was mistyped or tampered with. |
10 | Model year | A single character encoding the model year (e.g. the year a 2019 vs a 2003 was built). Letters skip I, O, Q, U, Z and the digit 0. |
11 | Plant code | The specific assembly plant that built the vehicle — useful for verifying a build location on imports. |
12–17 | Serial number | The unique production serial that makes this one vehicle different from every other of the same model. |
Want the deeper breakdown? See our guide to reading a VIN — every rule applies identically to a chassis number.
What It's Called & Where to Find It — by Country
The same 17-character code goes by different names and lives on different documents around the world. Here's where to look, wherever your car is registered.
| Region | Term Used | Where to Find It | Document |
|---|---|---|---|
| United Kingdom & Ireland | Chassis number / VIN | Printed on the V5C logbook (registration document). Also stamped on the chassis and shown through the windscreen. 17 characters on vehicles from 1981 onward. | V5C |
| European Union | Chassis number / VIN | Shown on the vehicle registration certificate (Part 1) and the manufacturer's plate. EU type-approval mandates a 17-character VIN to ISO 3779. | Reg. certificate |
| Australia & New Zealand | Chassis number / VIN | On the registration papers and a compliance/identification plate. Imports must carry a 17-character VIN to be registered; pre-1989 vehicles may have a shorter chassis number. | Rego papers |
| India & South Asia | Chassis number | Recorded on the RC (Registration Certificate) and stamped on the chassis. The chassis number and a separate engine number are both listed on the RC. | RC |
| Middle East & Africa | Chassis number | Used on the Mulkiya / registration card and the manufacturer's plate. Many vehicles are imports, so the WMI is useful for confirming country of origin. | Mulkiya / Reg. card |
| North America (US & Canada) | VIN | Called 'VIN' rather than chassis number. On the title/registration, the dashboard through the windscreen, and the door jamb. The deepest history records of any region. | Title |
| Japan (JDM) | Chassis number (車台番号) | Domestic Japanese vehicles use a shorter model-code + serial chassis number, not the 17-character VIN. Export and grey-import vehicles are matched via auction sheets and export certificates. | Export certificate |
Decode Your Chassis Number in Seconds
Free, instant car-type identification straight from the manufacturer's build record — make, model, year, body, and engine.
Always Match the Chassis Number Before You Buy
The chassis number is a vehicle's permanent identity, so it's the single best defence against fraud. A cloned or “ringed” car wears the identity of a legitimate vehicle to hide a stolen or write-off history — and the only way to catch it is to decode the chassis number and check that every copy matches.
Decode the number first to confirm the car type matches the advert. A chassis number that decodes to a different model, body, or year than the one in front of you is a stop-the-deal red flag. Then verify the same number on the document, the windscreen, the door jamb, and the engine bay all agree.
When the specification checks out, take the chassis number into a full vehicle history check to surface the records a decode alone can't — title brands, odometer rollback, accident damage, and theft markers.
Chassis number red flags
- Decoded car type doesn't match the advertised model or year
- The number contains an I, O, or Q (never valid)
- Document number differs from the number on the car
- Windscreen, door jamb, and engine-bay numbers disagree
- Plate looks re-riveted, scratched, or freshly painted
- Fewer than 17 characters on a post-1981 vehicle
Check a chassis number now:
More Tools That Read Your Chassis Number
The same 17 characters unlock every one of these checks.
Always check the VIN before you buy
Our free report reveals accidents, title brands, odometer rollback, theft records, and open recalls in seconds.
Chassis Number Lookup — Frequently Asked Questions
Direct answers to what chassis-number searchers ask most.
Is a chassis number the same as a VIN?+
Yes. 'Chassis number' is the term used across the UK, Europe, Australia, India, the Middle East, Africa, and much of Asia for what North America calls the VIN (Vehicle Identification Number). On vehicles built after 1981 it is the same 17-character alphanumeric code. Older vehicles and some markets used shorter chassis numbers, but the modern standard is identical worldwide.
How do I search a car by chassis number?+
Enter the full 17-character chassis number into the lookup tool above and we decode it instantly. The result shows the car type, make, model, year, body style, engine, manufacturing plant, and — where records exist — title, mileage, and accident history. There is no sign-up to decode the specs.
Where do I find my chassis number?+
The chassis number appears in several places: on the vehicle registration document (V5C in the UK, registration certificate elsewhere), on a metal plate in the engine bay, stamped on the chassis rail or firewall, on a sticker in the driver-side door jamb, and visible through the lower corner of the windscreen on most modern cars. All copies should match — a mismatch is a fraud red flag.
Can I look up a car type by chassis number for free?+
Yes. Decoding the chassis number to reveal the car type, make, model, year, body, and engine is completely free and instant — no account needed. A fuller history report (title brands, odometer trail, accident and theft records) is available as a paid add-on, but the core vehicle identification is free.
What can a chassis number tell me about a car?+
A 17-character chassis number is structured: the first three characters (WMI) identify the manufacturer and country of origin, characters 4–8 (VDS) describe the model, body style, engine, and restraint system, the 9th is a check digit, the 10th encodes the model year, the 11th is the assembly plant, and the last six are the unique serial number. Decoding it reveals the exact car type and specification.
My chassis number is shorter than 17 characters — why?+
Vehicles manufactured before 1981 (and some classic, kit, or grey-import vehicles) often have a shorter, non-standard chassis number that predates the 17-character ISO 3779 VIN standard. These cannot be decoded automatically and usually require manufacturer-specific records or a classic-vehicle club to interpret. For any vehicle from 1981 onward, the chassis number should be a full 17 characters.
Is a chassis number the same as the engine number or frame number?+
No. The chassis number (VIN) identifies the whole vehicle and is the one used for registration, history, and recalls. The engine number is stamped on the engine block and identifies that specific engine — it can change if the engine is replaced. 'Frame number' is another name for the chassis number on body-on-frame vehicles and motorcycles. Always use the chassis number (VIN) for a history lookup.
Can I find a vehicle's owner from the chassis number?+
No. Owner identity is personal data protected by privacy law (the DPPA in the US and equivalent regulations elsewhere) and is never returned by a chassis number lookup. What you can legally retrieve is the vehicle's specification and, where available, its title, mileage, accident, and theft history — the records that matter when buying a used car.
Does a chassis number lookup work for imported cars?+
Yes, if the import carries a standard 17-character chassis number. Decoding the WMI reveals the country of manufacture, which is useful for verifying a grey import or JDM vehicle. History data depth varies by country of origin — North American records are the deepest. For Japanese imports, pair the chassis number with a JDM import check for auction and export records.
What letters are never used in a chassis number?+
The letters I, O, and Q are never used in a 17-character chassis number, because they are too easily confused with the numbers 1 and 0. If your chassis number appears to contain one of these letters, look again — it is almost certainly a 1 or a 0. This rule is a quick way to spot a transcription error or a faked plate.
Why does the same chassis number show on the V5C and the car?+
Because the chassis number is the vehicle's permanent identity, it is printed on the registration document and physically stamped or plated on the car so the two can be matched. When buying, always confirm the chassis number on the document matches every copy on the vehicle. A mismatch can indicate a cloned, ringed, or stolen car — verify it with a free chassis number check before paying.
Look Up Any Car by Its Chassis Number
Enter a 17-character chassis number to identify the car type and specification, then unlock the full title, mileage, and accident history.
Related VIN Checks
More tools to verify any vehicle's history