Equipment unit · VIN-decoded · NHTSA vPIC

2019 Mertz Manufacturing Mertz Manufacturing, LLC

1M91H4323KA211320 · Trailer · TRAILER
Carriers run under5
31 mo
Inspections6
all-time
OOS inspections2
of 6
First seenSep 15, 2023
TX
Last seenApr 7, 2026
TX
Inspected under 5 different carriers in 31 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
1M91H4323KA211320
Make
Mertz Manufacturing
Model
Mertz Manufacturing, LLC
Model year
2019
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
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
211320

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.

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
2019

Observed directly for this VIN via NHTSA vPIC.

Observed make
MERTZ MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
Mertz Manufacturing, LLC

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 – Apr 7, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 7, 2026TXII · Walk-around3OOSHALLIBURTON ENERGY SERVICES INC 126693AJ9872/OK
May 8, 2025LAII · Walk-around0CL TRANSPORT LLC 3105381AJ9872/OK
Jun 29, 2024LAIII · Driver-only0PABLO ALFONSO JOVER 3346928AJ9872/OK
May 7, 2024TXII · Walk-around3OOSCAPITAL ROYAL LLC 3305731AJ9872/OK
Apr 5, 2024LAI · Full1CAPITAL ROYAL LLC 3305731AJ9872/OK
Sep 15, 2023TXII · Walk-around1COJAC'S TRANSPORT LLC 3100764AJ9872/OK
03

Carriers this unit has run under

5 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HALLIBURTON ENERGY SERVICES INC126693Apr 7, 2026Apr 7, 20261TX
CL TRANSPORT LLC3105381May 8, 2025May 8, 20251TX
PABLO ALFONSO JOVER3346928Jun 29, 2024Jun 29, 20241TX
CAPITAL ROYAL LLC3305731Apr 5, 2024May 7, 20242GA
COJAC'S TRANSPORT LLC3100764Sep 15, 2023Sep 15, 20231OK
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.
AJ9872OK2HALLIBURTON ENERGY SERVICES INCApr 7, 2026Apr 7, 20261
AJ9872OKCL TRANSPORT LLCMay 8, 2025May 8, 20251
AJ9872OKPABLO ALFONSO JOVERJun 29, 2024Jun 29, 20241
AJ9872OKCAPITAL ROYAL LLCApr 5, 2024May 7, 20242
AJ9872OKCOJAC'S TRANSPORT LLCSep 15, 2023Sep 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026