Equipment unit · VIN-decoded · NHTSA vPIC

2011 Wilson Trailer Co.

4WWMCF1AXB3616937 · TRAILER
Carriers run under2
21 mo
Inspections8
all-time
OOS inspections3
of 8
First seenAug 16, 2024
AZ
Last seenMay 30, 2026
TX
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
4WWMCF1AXB3616937
Make
Wilson Trailer Co.
Model
Not decoded
Model year
2011
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 18, 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.

Vehicle descriptor section
MCF1A

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
616937

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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
WILSON TRAILER CO.

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Aug 16, 2024 – May 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 30, 2026TXII · Walk-around7OOSMUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Apr 17, 2026TXII · Walk-around0MUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Mar 25, 2026TXI · Full8OOSMUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Sep 25, 2025TXII · Walk-around0MUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Jul 8, 2025TXIII · Driver-only2MUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Jan 23, 2025TXII · Walk-around2MUNOZ & SONS TRUCKING LLC 2469029181B379/TX
Dec 20, 2024TXII · Walk-around5MUNOZ & SONS TRUCKING LLC 2469029AM8258/OK
Aug 16, 2024AZI · Full4OOSA&M TRUCKING LLC 2953699AM8258/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MUNOZ & SONS TRUCKING LLC2469029Dec 20, 2024May 30, 20267TX
A&M TRUCKING LLC2953699Aug 16, 2024Aug 16, 20241NE
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.
181B379TXMUNOZ & SONS TRUCKING LLCJan 23, 2025May 30, 20266
AM8258OKMUNOZ & SONS TRUCKING LLCDec 20, 2024Dec 20, 20241
AM8258OKA&M TRUCKING LLCAug 16, 2024Aug 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026