Equipment unit · VIN-decoded · NHTSA vPIC

2013 Kenworth W9 Series

1XKWP4EX6DJ339031 · Truck-Tractor · TRUCK
W900
Carriers run under2
33 mo
Inspections5
all-time
OOS inspections2
of 5
First seenJul 22, 2023
WA
Last seenApr 13, 2026
WA
Inspected under 2 different carriers in 33 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
1XKWP4EX6DJ339031
Make
Kenworth
Model
W9 Series
Model year
2013
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WP4EX

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1983 or 2013

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

North American serial sequence
339031

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 · 209 decoded VINs at 91.9% prefix purity.

Model
W9 Series

Prefix basis · 209 decoded VINs at 91.9% prefix purity.

Model line
W900

Sourced label · prefix basis 209 decoded VINs at 91.9% 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
2013

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-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

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 · Jul 22, 2023 – Apr 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 13, 2026WAII · Walk-around7OOSC-LINE TRUCKING LLC 4515364D43652J/WA
Jun 25, 2025WYIII · Driver-only5ZUNIGAS TRUCKING LLC 3718989RP06353/WA
Jan 28, 2025WAII · Walk-around0ZUNIGAS TRUCKING LLC 3718989RP06353/WA
Jun 13, 2024WAI · Full7OOSZUNIGAS TRUCKING LLC 3718989RP06353/WA
Jul 22, 2023WAIII · Driver-only1ZUNIGAS TRUCKING LLC 3718989RP06353/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C-LINE TRUCKING LLC4515364Apr 13, 2026Apr 13, 20261WA
ZUNIGAS TRUCKING LLC3718989Jul 22, 2023Jun 25, 20254WA
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.
D43652JWAC-LINE TRUCKING LLCApr 13, 2026Apr 13, 20261
RP06353WAZUNIGAS TRUCKING LLCJul 22, 2023Jun 25, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026