Equipment unit · VIN-decoded · NHTSA vPIC

2018 Mertz Manufacturing Mertz Manufacturing, LLC

1M91H432XJA211135 · Trailer · TRAILER
Carriers run under4
30 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJan 31, 2024
WV
Last seenJul 1, 2026
WV
Inspected under 4 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

VIN
1M91H432XJA211135
Make
Mertz Manufacturing
Model
Mertz Manufacturing, LLC
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 6, 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
X · valid

Deterministic · position 9; calculated value X.

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
211135

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
2018

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 · Jan 31, 2024 – Jul 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 1, 2026WVII · Walk-around2OGUAA LOGISTICS LLC 3877836BD1573/OK
Mar 3, 2025WVII · Walk-around5COMBINED OILFIELD SERVICES LLC 2725420BD1573/OK
Aug 16, 2024OHII · Walk-around5GAVELBURG TRUCKING LLC 2935171BD1573/OK
Jan 31, 2024WVII · Walk-around5OOSBEEMAC INC 388467BD1573/OK
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OGUAA LOGISTICS LLC3877836Jul 1, 2026Jul 1, 20261PA
COMBINED OILFIELD SERVICES LLC2725420Mar 3, 2025Mar 3, 20251TX
GAVELBURG TRUCKING LLC2935171Aug 16, 2024Aug 16, 20241TN
BEEMAC INC388467Jan 31, 2024Jan 31, 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.
BD1573OK2OGUAA LOGISTICS LLCJul 1, 2026Jul 1, 20261
BD1573OKCOMBINED OILFIELD SERVICES LLCMar 3, 2025Mar 3, 20251
BD1573OKGAVELBURG TRUCKING LLCAug 16, 2024Aug 16, 20241
BD1573OKBEEMAC INCJan 31, 2024Jan 31, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026