Equipment unit · VIN-decoded · NHTSA vPIC

2011 Wilson Trailer Co.

1W1UCS257BD540394 · Trailer · TRAILER
Carriers run under3
22 mo
Inspections5
all-time
OOS inspections0
of 5
First seenDec 18, 2024
IA
Last seenOct 26, 2026
IA
Inspected under 3 different carriers in 22 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
1W1UCS257BD540394
Make
Wilson Trailer Co.
Model
Wilson Trailer Co.
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 9, 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
UCS25

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1981 or 2011

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

North American serial sequence
540394

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 · 4 decoded VINs at 100.0% prefix purity.

Model
Wilson Trailer Co.

Prefix basis · 4 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 · Dec 18, 2024 – Oct 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 26, 2026IAIII · Driver-only2—ZACHARY EILDERTS 3226248COWWGN/IA
Sep 28, 2025IAIII · Driver-only3—ZACHARY EILDERTS 3226248COWWGN/IA
Mar 11, 2025IAIII · Driver-only1—ZACHARY EILDERTS 3226248COWWGN/IA
Feb 6, 2025IAIII · Driver-only2—REWERTS TRUCKING LLC 3765974COWWGN/IA
Dec 18, 2024IAIII · Driver-only3—DENNIS TRUCKING LLC 2251203NXJ166/IA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZACHARY EILDERTS3226248Mar 11, 2025Oct 26, 20263IA
REWERTS TRUCKING LLC3765974Feb 6, 2025Feb 6, 20251IA
DENNIS TRUCKING LLC2251203Dec 18, 2024Dec 18, 20241IA
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.
COWWGNIA2ZACHARY EILDERTSMar 11, 2025 → Oct 26, 20263
COWWGNIA—REWERTS TRUCKING LLCFeb 6, 2025 → Feb 6, 20251
NXJ166IA—DENNIS TRUCKING LLCDec 18, 2024 → Dec 18, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 9, 2026