Equipment unit · VIN-decoded · NHTSA vPIC

1M91H4329JA211921

Not yet decoded
Carriers run under2
30 mo
Inspections2
all-time
OOS inspections0
of 2
First seenJan 4, 2024
TX
Last seenJul 17, 2026
TX
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
1M9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1H432

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1988 or 2018

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

North American serial sequence
211921

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 · Jan 4, 2024 – Jul 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 17, 2026TXII · Walk-around0M MAES TRUCKING LLC 4381273CF8150/OK
Jan 4, 2024TXII · Walk-around2PLATINUM 21 LOGISTICS LLC 2872634AJ9421/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
M MAES TRUCKING LLC4381273Jul 17, 2026Jul 17, 20261ND
PLATINUM 21 LOGISTICS LLC2872634Jan 4, 2024Jan 4, 20241TX
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.
CF8150OK2M MAES TRUCKING LLCJul 17, 2026Jul 17, 20261
AJ9421OKPLATINUM 21 LOGISTICS LLCJan 4, 2024Jan 4, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC