Equipment unit · VIN-decoded · NHTSA vPIC

4WW4432A4F7709722

Not yet decoded
Carriers run under2
28 mo
Inspections2
all-time
OOS inspections0
of 2
First seenNov 7, 2023
WI
Last seenMar 3, 2026
OK
Inspected under 2 different carriers in 28 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
1985 or 2015

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

North American serial sequence
709722

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 · Nov 7, 2023 – Mar 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 3, 2026OKII · Walk-around1WILLIAM M SCHIERLMAN 535334713127/KS
Nov 7, 2023WIIII · Driver-only13D TRANSPORTATION INC 1285691DD3195/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAM M SCHIERLMAN535334Mar 3, 2026Mar 3, 20261KS
3D TRANSPORTATION INC1285691Nov 7, 2023Nov 7, 20231IA
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.
713127KSWILLIAM M SCHIERLMANMar 3, 2026Mar 3, 20261
DD3195IA3D TRANSPORTATION INCNov 7, 2023Nov 7, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC