A Kenworth T880 VIN is 17 characters. Positions 1–3 say who built it and where, 4–8 describe the body and engine, 9 is a check digit, 10 is the model year, 11 is the plant, and 12–17 are the serial number. Decode a T880 VIN here and you also get its 139 recall campaigns and 8 owner complaints filed with NHTSA — free.
Got a VIN from another make? The free VIN decoder reads any 17-character VIN, whatever built it.
How to read a Kenworth T880 VIN
Here is a real 2026 Kenworth T880 VIN from our database, split into its parts:
VIN 1NKZX4EX6TJ198984 — decoded free on its own report page.
| Position | Section | What it tells you |
|---|---|---|
| 1–3 | WMI | World Manufacturer Identifier — country, manufacturer and vehicle type. |
| 4–8 | VDS | Vehicle Descriptor Section — body style, engine, restraint system, series. |
| 9 | Check digit | A calculated digit that validates the whole VIN. Wrong digit = wrong VIN. |
| 10 | Model year | One character for the model year. Letters skip I, O, Q, U and Z. |
| 11 | Plant | The assembly plant that built the car. |
| 12–17 | Serial | Sequential production number of this exact vehicle. |
Kenworth T880 VIN prefixes, and when each one was used
Characters 1–3 are not fixed for the life of a model. The Kenworth T880 ran through 2 different prefixes across 12 years — a T880 built in 2014 opens with 1NK, one from 2025 with 1XK, and a chart that assumes T880 always starts the same way will hand you the wrong car:
| VIN starts with | Years seen | Built in | Vehicle type | VINs on record |
|---|---|---|---|---|
| 1NK | 2014–2018 | United States | Incomplete Vehicle | |
| 1XK | 2016–2025 | United States | Truck |
Position 11 names the plant. On the Kenworth T880 it is not one number either — assembly moved between 2 of them over the years:
| Plant code | Years active | VINs on record | Share |
|---|---|---|---|
| J | 2016–2025 | 7 | |
| 4 | 2014–2014 | 1 |
Counted from the 8 dated Kenworth T880 VINs attached to NHTSA complaints — the largest such set for this model — with every code checked against the NHTSA manufacturer registry, so mistyped entries are dropped; the figures say how many records carry each code, not how many T880s left the line.
Model-year codes for the Kenworth T880
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the Kenworth T880 has not yet outlived — its 30 years still map one-to-one. All 30 model years of the Kenworth T880, 1997 to 2026, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 2026 | T | — |
| 2025 | S | — |
| 2024 | R | — |
| 2023 | P | — |
| 2022 | N | — |
| 2021 | M | — |
| 2020 | L | — |
| 2019 | K | — |
| 2018 | J | — |
| 2017 | H | — |
| 2016 | G | — |
| 2015 | F | — |
| 2014 | E | — |
| 2013 | D | — |
| 2012 | C | — |
| 2011 | B | — |
| 2010 | A | — |
| 2009 | 9 | — |
| 2008 | 8 | — |
| 2007 | 7 | — |
| 2006 | 6 | — |
| 2005 | 5 | — |
| 2004 | 4 | — |
| 2003 | 3 | — |
| 2002 | 2 | — |
| 2001 | 1 | — |
| 2000 | Y | — |
| 1999 | X | — |
| 1998 | W | — |
| 1997 | V | — |
When two years share a character, the check digit and serial range tell them apart — that is what the decoder does automatically.
Body and engine characters we see on Kenworth T880 VINs
Positions 4 through 8 describe the build, and manufacturers assign them themselves — the same letter means different things on different marques. Across 8 VINs the Kenworth T880 uses 5 different characters in these three slots alone — the ones below, ordered by how much of the Kenworth fleet each covers:
| Position | Characters seen on real VINs | Variety |
|---|---|---|
| 4 — body | Z (100%) | 1 distinct |
| 5 — series | X (50%) · D (38%) · L (13%) | 3 distinct |
| 8 — engine | X (100%) | 1 distinct |
A character that dominates the column usually marks the body style the model was mostly sold in; a spread across several means multiple bodies or engines shared the same platform.
What a decoded Kenworth T880 VIN gets you
Reading the characters is the easy part — the reason to decode a VIN is what sits behind it. For the Kenworth T880 that is 8 owner complaints and every recall campaign NHTSA has on record, keyed to the same VIN you just read:
| Data | For this model | Source |
|---|---|---|
| Recall campaigns | 139 campaigns | NHTSA |
| Owner complaints | 8 filed | NHTSA |
| Model years covered | 30 years | ForCar catalog |
Where to find the VIN on a Kenworth T880
A Kenworth T880 VIN normally opens with 1NK. Four places on the car carry the full number, and all four must agree — on a Kenworth T880, a plate that disagrees is where fraud shows itself first.
| Where | How to see it | Why it matters |
|---|---|---|
| Dashboard, driver side | Through the windshield, bottom corner | Easiest to check before you touch anything |
| Driver door jamb | Open the door, sticker on the pillar | Also lists tyre pressures and build date |
| Under the hood | Firewall or strut tower plate | Survives a windshield replacement |
| Title and insurance | Paper documents | Must match the car — a mismatch means fraud or a swapped panel |
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Frequently asked questions
Is this Kenworth T880 VIN decoder free?
Yes — decoding a Kenworth T880 VIN costs nothing and needs no account. Beyond the year, plant and build characters you also get what NHTSA holds on the Kenworth T880 — 139 recall campaigns and 8 owner complaints — at no charge.
Why does my T880 VIN start differently from another T880?
Because the prefix changed during the model's run. Across the Kenworth T880 VINs on record we see 2 of them: 1NK (2014–2018), 1XK (2016–2025). A 2014 car opens with 1NK, a 2025 one with 1XK, and both are genuine. A decoder that assumes a single prefix for the whole model is where the wrong answers come from.
How many characters is a Kenworth T880 VIN?
Seventeen, on every Kenworth T880 built from 1981 onwards, when the 17-character format became mandatory in the US. The oldest Kenworth T880 VIN on file here is a 2019, so everything in our Kenworth data already uses the modern layout.
Why do two Kenworth T880 model years share the same VIN character?
Position 10 cycles through the alphabet every 30 years, skipping I, O, Q, U and Z. A 1995 and a 2025 car can carry the same letter. The check digit and serial range separate them.
Can a Kenworth T880 VIN tell me if the car was in an accident?
Not from the characters themselves — they describe how the Kenworth T880 left the factory, not what happened to it afterwards. Crash and title records sit in separate databases keyed to the same number. What is public are the 8 complaints Kenworth T880 owners filed with NHTSA, and those we do show. Run the number through our VIN check to see what is on the record for it.
Do the body and engine characters mean the same thing on every Kenworth?
No, and that is the usual mistake — positions 4–8 are assigned per model, not per brand. A letter that means one body on the Kenworth T880 can mean a different one on another Kenworth, and something else again on another marque. On Kenworth T880 VINs the character that dominates position 4 is Z — read it against the table above, not against a generic chart.
What if the VIN on the dashboard doesn't match the door jamb?
Treat it as a red flag on any car, and on a Kenworth T880 check the prefix first: for the model year in question it should open with 1NK or 1XK, depending on when the car was built — anything outside that set did not come off a Kenworth T880. Beyond that, mismatched plates mean either a replaced panel or a tampered identity — ask for documents and verify before any money changes hands.
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