Equipment unit · VIN-decoded · NHTSA vPIC

4B9BKFS23MH054619

Not yet decoded
Carriers run under2
30 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJul 27, 2023
NE
Last seenJan 16, 2026
NM
Inspected under 2 different carriers in 30 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
BKFS2

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1991 or 2021

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

North American serial sequence
054619

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 · 144 decoded VINs at 100.0% prefix purity.

Model
Brazos

Prefix basis · 144 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.

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 · Jul 27, 2023 – Jan 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 16, 2026NMIII · Driver-only0ROBMAR TRANSPORT LLC 4144293100C796/TX
Jan 13, 2026NMIII · Driver-only1OOSROBMAR TRANSPORT LLC 4144293190C796/MX
Jul 27, 2023NEIII · Driver-only1SAND KINGZ EXPRESS LLC 3498361190C796/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROBMAR TRANSPORT LLC4144293Jan 13, 2026Jan 16, 20262TX
SAND KINGZ EXPRESS LLC3498361Jul 27, 2023Jul 27, 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.
100C796TXROBMAR TRANSPORT LLCJan 16, 2026Jan 16, 20261
190C796MXROBMAR TRANSPORT LLCJan 13, 2026Jan 13, 20261
190C796TXSAND KINGZ EXPRESS LLCJul 27, 2023Jul 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC