Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth W9 Series

1NKWX40X4SR154461 · Truck · INCOMPLETE VEHICLE
W900
Carriers run under1
9 mo
Inspections3
all-time
OOS inspections0
of 3
First seenNov 26, 2024
WA
Last seenAug 6, 2025
WA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKWX40X4SR154461
Make
Kenworth
Model
W9 Series
Model year
2025
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WX40X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1995 or 2025

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

North American serial sequence
154461

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 · 72 decoded VINs at 97.2% prefix purity.

Model
W9 Series

Prefix basis · 72 decoded VINs at 97.2% prefix purity.

Model line
W900

Sourced label · prefix basis 72 decoded VINs at 97.2% 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
2025

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 · Nov 26, 2024 – Aug 6, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 6, 2025WAIII · Driver-only0ALASKA PACIFIC TRUCKING INC 1635920D35767F/WA
Apr 18, 2025WAIII · Driver-only1ALASKA PACIFIC TRUCKING INC 1635920D35767F/WA
Nov 26, 2024WAIII · Driver-only0ALASKA PACIFIC TRUCKING INC 1635920D35767F/WA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALASKA PACIFIC TRUCKING INC1635920Nov 26, 2024Aug 6, 20253WA
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.
D35767FWAALASKA PACIFIC TRUCKING INCNov 26, 2024Aug 6, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026