Equipment unit · VIN-decoded · NHTSA vPIC

2025 Wilson

1W1K44520S6635479 · Trailer · TRAILER
Carriers run under2
17 mo
Inspections7
all-time
OOS inspections1
of 7
First seenAug 1, 2024
TX
Last seenJan 2, 2026
TX
Inspected under 2 different carriers in 17 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
1W1K44520S6635479
Make
Wilson
Model
Wilson
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 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
1W1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
K4452

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1995 or 2025

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

North American serial sequence
635479

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 · 105 decoded VINs at 100.0% prefix purity.

Model
Wilson

Prefix basis · 105 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
2025

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 · Aug 1, 2024 – Jan 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 2, 2026TXII · Walk-around4A W YANDELL TRUCKING LLC 1577701DG5158/OK
Aug 27, 2025TXII · Walk-around4SALT FORK TRANSPORT LLC 2791308DG5158/OK
Apr 28, 2025TXII · Walk-around2SALT FORK TRANSPORT LLC 2791308DG5158/OK
Feb 21, 2025TXII · Walk-around1SALT FORK TRANSPORT LLC 2791308DG5158/OK
Aug 28, 2024TXII · Walk-around1SALT FORK TRANSPORT LLC 2791308DG5158/OK
Aug 13, 2024TXII · Walk-around4SALT FORK TRANSPORT LLC 2791308DG5158/OK
Aug 1, 2024TXII · Walk-around6OOSSALT FORK TRANSPORT LLC 2791308DG5158/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
A W YANDELL TRUCKING LLC1577701Jan 2, 2026Jan 2, 20261OK
SALT FORK TRANSPORT LLC2791308Aug 1, 2024Aug 27, 20256OK
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.
DG5158OKA W YANDELL TRUCKING LLCJan 2, 2026Jan 2, 20261
DG5158OKSALT FORK TRANSPORT LLCAug 1, 2024Aug 27, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026