Equipment unit · VIN-decoded · NHTSA vPIC

1987 Wilson Trailer Co.

1W1ZHD600H3303732 · Trailer · TRAILER
Carriers run under2
20 mo
Inspections7
all-time
OOS inspections5
of 7
First seenSep 23, 2024
TX
Last seenMay 6, 2026
TX
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

VIN
1W1ZHD600H3303732
Make
Wilson Trailer Co.
Model
Wilson Trailer Co.
Model year
1987
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 7, 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
ZHD60

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1987 or 2017

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

North American serial sequence
303732

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1987

Observed directly for this VIN via NHTSA vPIC.

Observed make
WILSON TRAILER CO.

Observed directly for this VIN via NHTSA vPIC.

Observed model
Wilson Trailer Co.

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 23, 2024 – May 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 6, 2026TXII · Walk-around2WG STOCKING TRANSPORT LLC 4376452159C498/TX
Apr 13, 2026TXII · Walk-around7WG STOCKING TRANSPORT LLC 4376452159C498/TX
Mar 5, 2026TXII · Walk-around8OOSWG STOCKING TRANSPORT LLC 4376452159C498/TX
Feb 2, 2026TXII · Walk-around12OOSWG STOCKING TRANSPORT LLC 4376452159C498/TX
Jan 16, 2025TXII · Walk-around9OOSJ R M HAULING LLC 2420671159C498/TX
Oct 16, 2024TXII · Walk-around20OOSJ R M HAULING LLC 2420671226B293/TX
Sep 23, 2024TXII · Walk-around15OOSJ R M HAULING LLC 2420671NONE/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WG STOCKING TRANSPORT LLC4376452Feb 2, 2026May 6, 20264TX
J R M HAULING LLC2420671Sep 23, 2024Jan 16, 20253TX
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.
159C498TXWG STOCKING TRANSPORT LLCFeb 2, 2026May 6, 20264
159C498TXJ R M HAULING LLCJan 16, 2025Jan 16, 20251
226B293TXJ R M HAULING LLCOct 16, 2024Oct 16, 20241
NONETXJ R M HAULING LLCSep 23, 2024Sep 23, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 7, 2026