Infiniti VIN Check
Shopping for a used Infiniti? Start with the VIN — not the seller's description. A 17-character Infiniti VIN encodes factory identity for models such as Q50, QX50, QX55, QX60, QX80. DecodeAnyVin reads that code for free so you can confirm year, plant, and equipment before you drive across town for a viewing.
Infiniti (Nissan Motor Co.) (Japan, founded 1989) assigns manufacturer-specific meaning in the Vehicle Descriptor Section (positions 4–8). Infiniti uses JNK and JN3 WMIs for Japan-built models; some U.S.-market Infiniti models share Nissan U.S. WMIs. Popular shopper checks include matching a listed Q50 against the decoded line and engine.
On this page you can paste any Infiniti VIN into the decoder above. We check format (no I, O, or Q), verify the ISO 3779 check digit, resolve the WMI against our registry, and apply Infiniti-specific rules researched from NHTSA vPIC, ISO standards, and manufacturer documentation.
Infiniti WMI prefixes we decode
| WMI | Country | Notes |
|---|---|---|
JNK | Japan | Japan-built Infiniti |
JN3 | Japan | Infiniti crossovers |
Remember: a VIN decode shows how the vehicle left the factory. It does not show accidents, title brands, odometer history, or prior owners.
How to Read a Infiniti VIN
Use this Infiniti walkthrough when you are comparing listings, not when you only need a quick plant code.
- Copy the VIN from the windshield or door jamb — all 17 characters.
- Paste it into DecodeAnyVin on this Infiniti page (or the homepage).
- Confirm make, year, plant, and engine match the listing for models like Q50, QX50, QX55, QX60, QX80.
- If anything disagrees, walk away or demand paperwork before paying a deposit.
Reading a Infiniti VIN by hand
Positions 1–3 (WMI). Expected prefixes include JNK (Japan), JN3 (Japan). Infiniti uses JNK and JN3 WMIs for Japan-built models; some U.S.-market Infiniti models share Nissan U.S. WMIs.
Position 4 (Vehicle Line). Common mappings in our decoder: brand-specific line codes.
Position 5. Usually series, trim, or drivetrain detail for Infiniti.
Position 8 (engine / related). Examples: engine / market codes that vary by year.
Position 9. ISO 3779 check digit — DecodeAnyVin validates this automatically.
Position 10. Model year on the standard 30-year letter/digit cycle.
Position 11. Assembly plant. Examples: Infiniti plant letters.
Positions 12–17. Production serial unique to that plant line.
Infiniti-specific quirks to watch
- VDS codes (4–8) can change when Infiniti launches a new platform — charts from a different decade may mislead.
- North American market VINs follow FMVSS 565; vehicles imported privately may still use the same WMI system but different catalog data.
- Always cross-check the decoded plant and engine against the door-jamb sticker before ordering expensive parts.
Decoded attributes are informational. Confirm engine, trim, and drivetrain against the window sticker, build sheet, or a dealer before purchase, insurance, or registration decisions.
Related reading: How to read a VIN, check digit explained, and verify a VIN against a listing.
Infiniti VIN Position Breakdown
| Pos. | Section | Standard Meaning | Infiniti Notes |
|---|---|---|---|
| 1 | WMI | Country of manufacture | ISO 3779 region code — e.g. 1=USA, J=Japan, W=Germany |
| 2 | WMI | Manufacturer | Combined with pos. 1–3 identifies Infiniti |
| 3 | WMI | Vehicle type | Infiniti WMI codes: JNK (Japan), JN3 (Japan) |
| 4 | VDS | Vehicle Line | Infiniti-specific model line code |
| 5 | VDS | Series / trim | Trim, series, or drive configuration |
| 6 | VDS | Body / restraint | Body style and/or restraint system (varies by year) |
| 7 | VDS | Restraint / body | Supplemental restraint or body attribute |
| 8 | VDS | Engine | Engine family or displacement code |
| 9 | Check digit | Validation | ISO 3779 weighted-sum check — detects typos and tampering |
| 10 | VIS | Model year | Standard 30-year letter/digit cycle (1980–2039) |
| 11 | VIS | Assembly plant | Infiniti factory code |
| 12–17 | VIS | Serial number | Unique production sequence at the assembly plant |
Frequently Asked Questions — Infiniti VIN
Where do I find the VIN on a Infiniti?
Dashboard at windshield, driver's door jamb, and owner's manual service label.
What does the WMI JNK mean on a Infiniti?
JNK is a World Manufacturer Identifier used on Infiniti vehicles. Infiniti uses JNK and JN3 WMIs for Japan-built models; some U.S.-market Infiniti models share Nissan U.S. WMIs.
How can a Infiniti VIN help when buying used?
Decode the VIN before you visit the seller. Confirm model year, plant, and engine match the listing for models like the Q50 or QX50. Then compare the dashboard plate with the door-jamb sticker — mismatches are a red flag.
Can I decode a Infiniti VIN for free on DecodeAnyVin?
Yes. Paste your 17-character Infiniti VIN into the form on this page. We validate the ISO 3779 check digit, resolve the WMI, read the model year and plant, and apply Infiniti-specific rules for positions 4–8 where available — no signup required.
Does a Infiniti VIN show the engine?
Often yes. On many Infiniti lines, position 8 (sometimes nearby VDS positions) encodes engine family. Coverage is strongest for high-volume models such as Q50 and QX50; exotic or late-cycle codes may need dealer confirmation.
How do I know a Infiniti VIN was not altered?
Run the check digit (position 9). Example structure: JN1CV6APX8BM12345. Also match the windshield VIN to the door-jamb label and reject plates that look restamped or glued. A decode cannot prove title status — only factory identity.
Is the model year on a Infiniti VIN always the calendar year?
No. Position 10 is the manufacturer's model year on the ISO 30-year cycle. A vehicle built in autumn may already carry next year's code. Use it as the factory model year, not the build calendar date.
Which Infiniti models does DecodeAnyVin support?
Any Infiniti with a standard 17-character VIN (typically 1981+), including Q50, QX50, QX55, QX60, QX80. WMI and year/plant decode work broadly; detailed trim/engine depth depends on documented VDS rules for that platform.