Equipment unit · VIN-decoded · NHTSA vPIC

2003 Kenworth W900

1NKWLT0X63J389014 · Truck · INCOMPLETE VEHICLE
Carriers run under1
32 mo
Inspections6
all-time
OOS inspections4
of 6
First seenNov 27, 2023
AZ
Last seenJul 9, 2026
AZ
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKWLT0X63J389014
Make
Kenworth
Model
W900
Model year
2003
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
WLT0X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2003 or 2033

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

North American serial sequence
389014

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 · 34 decoded VINs at 91.2% prefix purity.

Model
W900

Prefix basis · 34 decoded VINs at 91.2% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

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
2003

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
W900

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Nov 27, 2023 – Jul 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 9, 2026AZI · Full12OOSSOUTHWEST READY MIX LLC 3164651NYA00J/AZ
Mar 6, 2026AZII · Walk-around3SOUTHWEST READY MIX LLC 3164651NYA00J/AZ
May 1, 2025AZII · Walk-around3OOSSOUTHWEST READY MIX LLC 3164651NYA00J/AZ
Oct 25, 2024AZII · Walk-around8OOSSOUTHWEST READY MIX LLC 3164651NYA00J/AZ
Aug 29, 2024AZII · Walk-around7SOUTHWEST READY MIX LLC 3164651NYA00J/AZ
Nov 27, 2023AZI · Full6OOSSOUTHWEST READY MIX LLC 3164651NYA00J/AZ
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHWEST READY MIX LLC3164651Nov 27, 2023Jul 9, 20266AZ
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.
NYA00JAZ1SOUTHWEST READY MIX LLCNov 27, 2023Jul 9, 20266
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026