Equipment unit · VIN-decoded · NHTSA vPIC

2018 Kenworth W9 Series

1XKWD40X3JJ204021 · Truck-Tractor · TRUCK
Carriers run under0
24 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJan 11, 2024
VT
Last seenJan 9, 2026
VT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XKWD40X3JJ204021
Make
Kenworth
Model
W9 Series
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 26, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WD40X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1988 or 2018

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
204021

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Temporarily unavailable

The platform resolver did not return a reliable response

Deterministic validation above is complete. Platform fields are withheld because an outage is not evidence that the VIN has no known platform.

VIN-level rule claims

Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Model-year-scoped rules stay suppressed here because position 10 alone cannot establish the year.

Temporarily unavailable

The VIN-level rule resolver did not return a reliable response

Deterministic validation and the prefix-level results above are unaffected. An outage here is not evidence that no VIN-level rule applies.

Not established

  • platform resolution (temporarily unavailable)

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jan 11, 2024 – Jan 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 9, 2026VTIII · Driver-only0USDOT 2388791 238879134AP51/NH
Oct 17, 2025NYII · Walk-around0USDOT 2388791 238879134AP51/NH
Jan 11, 2024VTIII · Driver-only1USDOT 1954562 195456251A42/VT
03

Carriers this unit has run under

0 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026