Equipment unit · VIN-decoded · NHTSA vPIC

1M91H4323KA211334

Not yet decoded
Carriers run under2
7 mo
Inspections2
all-time
OOS inspections1
of 2
First seenDec 17, 2024
LA
Last seenJul 14, 2025
OK
Inspected under 2 different carriers in 7 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
3 · valid

Deterministic · position 9; calculated value 3.

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
211334

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 · Dec 17, 2024 – Jul 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 14, 2025OKIII · Driver-only1EMPRESS STAR LOGISTICS LLC 4180172CJ8667/OK
Dec 17, 2024LAI · Full3OOSMULTI-M SERVICES LLC 3444368AJ9949/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
EMPRESS STAR LOGISTICS LLC4180172Jul 14, 2025Jul 14, 20251TX
MULTI-M SERVICES LLC3444368Dec 17, 2024Dec 17, 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.
CJ8667OKEMPRESS STAR LOGISTICS LLCJul 14, 2025Jul 14, 20251
AJ9949OKMULTI-M SERVICES LLCDec 17, 2024Dec 17, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC