Equipment unit · VIN-decoded · NHTSA vPIC

2013 Wilson Trailer Co.

4WW5512A3D6620040 · TRAILER
Carriers run under2
8 mo
Inspections2
all-time
OOS inspections0
of 2
First seenJul 25, 2023
TX
Last seenMar 31, 2024
KS
Inspected under 2 different carriers in 8 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
4WW5512A3D6620040
Make
Wilson Trailer Co.
Model
Not decoded
Model year
2013
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 20, 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
4WW

Deterministic · VIN positions 1–3.

Source · 49 CFR Part 565 ↗
Vehicle descriptor section
5512A

Deterministic · VIN positions 4–8.

Source · 49 CFR Part 565 ↗
Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Source · 49 CFR Part 565 ↗
Model year candidates
1983 or 2013

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

Source · 49 CFR Part 565 ↗
North American serial sequence
620040

Deterministic · positions 12–17 for a North American WMI.

Source · 49 CFR Part 565 ↗

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.

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 · Jul 25, 2023 – Mar 31, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 31, 2024KSII · Walk-around2—GRIFFIN LOGISTICS LTD 21109096KU392/AB
Jul 25, 2023TXII · Walk-around0—WESTFREIGHT SYSTEMS INC 4646086MV069/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRIFFIN LOGISTICS LTD2110909Mar 31, 2024Mar 31, 20241AB
WESTFREIGHT SYSTEMS INC464608Jul 25, 2023Jul 25, 20231AB
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.
6KU392AB—GRIFFIN LOGISTICS LTDMar 31, 2024 → Mar 31, 20241
6MV069TX2WESTFREIGHT SYSTEMS INCJul 25, 2023 → Jul 25, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 20, 2026