Equipment unit · VIN-decoded · NHTSA vPIC

1M91H4324KA211097

Not yet decoded
Carriers run under2
28 mo
Inspections2
all-time
OOS inspections0
of 2
First seenMar 15, 2024
OH
Last seenJul 28, 2026
PA
Inspected under 2 different carriers in 28 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
1M9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1H432

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1989 or 2019

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

North American serial sequence
211097

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
MERTZ MANUFACTURING

Prefix basis · 152 decoded VINs at 100.0% prefix purity.

Model
Mertz Manufacturing, LLC

Prefix basis · 152 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 · Mar 15, 2024 – Jul 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 28, 2026PAIII · Driver-only0WHITEFORD STONE SUPPLY INC 2111058AJ9603/OK
Mar 15, 2024OHII · Walk-around0AV TRANSPORT LLC 3478128AJ9603/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WHITEFORD STONE SUPPLY INC2111058Jul 28, 2026Jul 28, 20261PA
AV TRANSPORT LLC3478128Mar 15, 2024Mar 15, 20241PA
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.
AJ9603OK2WHITEFORD STONE SUPPLY INCJul 28, 2026Jul 28, 20261
AJ9603OKAV TRANSPORT LLCMar 15, 2024Mar 15, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC