Equipment unit · VIN-decoded · NHTSA vPIC

4WW4432A4C6619424

Not yet decoded
Carriers run under2
20 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJan 30, 2024
IN
Last seenSep 9, 2025
IA
Inspected under 2 different carriers in 20 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
4WW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
4432A

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1982 or 2012

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

North American serial sequence
619424

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
WILSON TRAILER CO.

Prefix basis · 152 decoded VINs at 100.0% prefix purity.

Model
Wilson Trailer Co.

Prefix basis · 152 decoded VINs at 100.0% 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.

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 · Jan 30, 2024 – Sep 9, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 9, 2025IAII · Walk-around1OOSPRO TOW LLC 890548869926ST/IL
Jan 30, 2024INII · Walk-around1BULK MASTERS TRUCKING INC 4061464593599ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PRO TOW LLC890548Sep 9, 2025Sep 9, 20251IA
BULK MASTERS TRUCKING INC4061464Jan 30, 2024Jan 30, 20241IL
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.
869926STILPRO TOW LLCSep 9, 2025Sep 9, 20251
593599STILBULK MASTERS TRUCKING INCJan 30, 2024Jan 30, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC