Equipment unit · VIN-decoded · NHTSA vPIC

2018 Mertz Manufacturing Mertz Manufacturing, LLC

1M91H4328JA211456 · Trailer · TRAILER
Carriers run under4
31 mo
Inspections6
all-time
OOS inspections6
of 6
First seenSep 4, 2023
OH
Last seenApr 20, 2026
PA
Inspected under 4 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
1M91H4328JA211456
Make
Mertz Manufacturing
Model
Mertz Manufacturing, LLC
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 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
8 · valid

Deterministic · position 9; calculated value 8.

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
211456

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 · Sep 4, 2023 – Apr 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 20, 2026PAII · Walk-around5OOSJUART BROTHERS EXCAVATING INC 2144154BD8185/OK
Oct 17, 2025PAII · Walk-around1OOSTJD ENERGY SERVICES LLC 1485183BD8185/OK
Oct 17, 2025PAII · Walk-around1OOSTJD ENERGY SERVICES LLC 1485183BD8185/OK
Oct 8, 2025PAII · Walk-around5OOSTJD ENERGY SERVICES LLC 1485183BD8185/OK
Jan 25, 2024OHII · Walk-around4OOSGAVELBURG TRUCKING LLC 2935171CD3996/OK
Sep 4, 2023OHIII · Driver-only2OOSBLAKE TRUCKING SERVICES LLC 3110811CD3996/OK
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JUART BROTHERS EXCAVATING INC2144154Apr 20, 2026Apr 20, 20261PA
TJD ENERGY SERVICES LLC1485183Oct 8, 2025Oct 17, 20253PA
GAVELBURG TRUCKING LLC2935171Jan 25, 2024Jan 25, 20241TN
BLAKE TRUCKING SERVICES LLC3110811Sep 4, 2023Sep 4, 20231WV
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.
BD8185OKJUART BROTHERS EXCAVATING INCApr 20, 2026Apr 20, 20261
BD8185OKTJD ENERGY SERVICES LLCOct 8, 2025Oct 17, 20253
CD3996OKGAVELBURG TRUCKING LLCJan 25, 2024Jan 25, 20241
CD3996OKBLAKE TRUCKING SERVICES LLCSep 4, 2023Sep 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026