Equipment unit · VIN-decoded · NHTSA vPIC

1PMS34427P1012679

Not yet decoded
Carriers run under2
26 mo
Inspections2
all-time
OOS inspections1
of 2
First seenMay 20, 2024
CA
Last seenJul 14, 2026
CA
Inspected under 2 different carriers in 26 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
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
S3442

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1993 or 2023

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

North American serial sequence
012679

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
POLAR TANK TRAILER

Prefix basis · 67 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 67 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 · May 20, 2024 – Jul 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 14, 2026CAII · Walk-around7OOSA HERNANDEZ TRUCKING 15404084XC3343/CA
May 20, 2024CAII · Walk-around1JUAN A CURIEL 39357464ST7955/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
A HERNANDEZ TRUCKING1540408Jul 14, 2026Jul 14, 20261CA
JUAN A CURIEL3935746May 20, 2024May 20, 20241CA
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.
4XC3343CA2A HERNANDEZ TRUCKINGJul 14, 2026Jul 14, 20261
4ST7955CAJUAN A CURIELMay 20, 2024May 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC