Equipment unit · VIN-decoded · NHTSA vPIC

2009 Kenworth W9 Series

1NKWX4EX79J256614 · Truck · INCOMPLETE VEHICLE
W900
Carriers run under1
30 mo
Inspections6
all-time
OOS inspections0
of 6
First seenOct 17, 2023
PA
Last seenApr 24, 2026
PA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKWX4EX79J256614
Make
Kenworth
Model
W9 Series
Model year
2009
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 23, 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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WX4EX

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
2009 or 2039

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

North American serial sequence
256614

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.

Make
KENWORTH

Prefix basis · 194 decoded VINs at 95.9% prefix purity.

Model
W9 Series

Prefix basis · 194 decoded VINs at 95.9% prefix purity.

Model line
W900

Sourced label · prefix basis 194 decoded VINs at 95.9% prefix purity.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2009

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
W9 Series

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 17, 2023 – Apr 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 24, 2026PAII · Walk-around1SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
Jan 16, 2025PAIII · Driver-only0SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
Jan 13, 2025PAIII · Driver-only1SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
Dec 10, 2024PAII · Walk-around0SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
Sep 24, 2024PAII · Walk-around0SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
Oct 17, 2023PAII · Walk-around1SUPERIOR 3 CONSTRUCTION INC 3255687ZWP6111/PA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SUPERIOR 3 CONSTRUCTION INC3255687Oct 17, 2023Apr 24, 20266PA
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
ZWP6111PASUPERIOR 3 CONSTRUCTION INCOct 17, 2023Apr 24, 20266
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026