Equipment unit · VIN-decoded · NHTSA vPIC

2016 Brazos

4B9B4DM21GG054222 · Trailer · TRAILER
Carriers run under3
22 mo
Inspections4
all-time
OOS inspections4
of 4
First seenSep 15, 2023
TX
Last seenJul 11, 2025
TX
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
4B9B4DM21GG054222
Make
Brazos
Model
Brazos
Model year
2016
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 14, 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
4B9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
B4DM2

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1986 or 2016

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

North American serial sequence
054222

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
BRAZOS

Prefix basis · 39 decoded VINs at 100.0% prefix purity.

Model
Brazos

Prefix basis · 39 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
2016

Observed directly for this VIN via NHTSA vPIC.

Observed make
BRAZOS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Brazos

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 · Sep 15, 2023 – Jul 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 11, 2025TXI · Full11OOSTDH TRUCKING LLC 338292487W945V/TX
May 16, 2025TXII · Walk-around9OOSTDH TRUCKING LLC 3382924NONE/TX
Nov 20, 2024TXI · Full23OOSSANTIAGO DIAZ BELTRAN 28668494141LT/OK
Sep 15, 2023TXII · Walk-around11OOSQUEEN ATX LLC 4020820NONE/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TDH TRUCKING LLC3382924May 16, 2025Jul 11, 20252TX
SANTIAGO DIAZ BELTRAN2866849Nov 20, 2024Nov 20, 20241TX
QUEEN ATX LLC4020820Sep 15, 2023Sep 15, 20231TX
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.
87W945VTXTDH TRUCKING LLCJul 11, 2025Jul 11, 20251
NONETXTDH TRUCKING LLCMay 16, 2025May 16, 20251
4141LTOKSANTIAGO DIAZ BELTRANNov 20, 2024Nov 20, 20241
NONETXQUEEN ATX LLCSep 15, 2023Sep 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 14, 2026