Equipment unit · VIN-decoded · NHTSA vPIC

2019 Wilson

1W16522A3K5556408 · Trailer · TRAILER
Carriers run under2
21 mo
Inspections2
all-time
OOS inspections0
of 2
First seenApr 20, 2024
IL
Last seenJan 21, 2026
IA
Inspected under 2 different carriers in 21 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
1W16522A3K5556408
Make
Wilson
Model
Wilson
Model year
2019
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 1, 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
1W1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
6522A

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1989 or 2019

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

North American serial sequence
556408

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

Prefix basis · 35 decoded VINs at 100.0% prefix purity.

Model
Wilson

Prefix basis · 35 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.

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
2019

Observed directly for this VIN via NHTSA vPIC.

Observed make
WILSON

Observed directly for this VIN via NHTSA vPIC.

Observed model
Wilson

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

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 · Apr 20, 2024 – Jan 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 21, 2026IAIII · Driver-only3ROCK CREEK TRANSPORT INC 28288991025082ST/IL
Apr 20, 2024ILIII · Driver-only0MICHAEL NANNINGA 632352550400ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCK CREEK TRANSPORT INC2828899Jan 21, 2026Jan 21, 20261IL
MICHAEL NANNINGA632352Apr 20, 2024Apr 20, 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.
1025082STILROCK CREEK TRANSPORT INCJan 21, 2026Jan 21, 20261
550400STILMICHAEL NANNINGAApr 20, 2024Apr 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 1, 2026