Equipment unit · VIN-decoded · NHTSA vPIC

2014 Kenworth W9 Series

1NKWX4EX3ER388846 · Truck · INCOMPLETE VEHICLE
W900
Carriers run under2
30 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 3, 2023
WA
Last seenFeb 4, 2026
WA
Inspected under 2 different carriers in 30 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKWX4EX3ER388846
Make
Kenworth
Model
W9 Series
Model year
2014
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
WX4EX

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1984 or 2014

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

North American serial sequence
388846

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
2014

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 · Aug 3, 2023 – Feb 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 4, 2026WAII · Walk-around2OOSJUSTIN PITTS TRUCKING INC 60635767519RP/WA
Mar 18, 2024WAII · Walk-around3OOSWILLIS TRANSPORTATION LLC 5181422832XP/WA
Jan 16, 2024WAIII · Driver-only1JUSTIN PITTS TRUCKING INC 60635767519RP/WA
Jan 5, 2024WAII · Walk-around3JUSTIN PITTS TRUCKING INC 60635767519RP/WA
Aug 3, 2023WAIII · Driver-only2JUSTIN PITTS TRUCKING INC 60635767519RP/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JUSTIN PITTS TRUCKING INC606357Aug 3, 2023Feb 4, 20264WA
WILLIS TRANSPORTATION LLC518142Mar 18, 2024Mar 18, 20241WA
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.
67519RPWAJUSTIN PITTS TRUCKING INCAug 3, 2023Feb 4, 20264
2832XPWAWILLIS TRANSPORTATION LLCMar 18, 2024Mar 18, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026