Equipment unit · VIN-decoded · NHTSA vPIC

2005 Polar Tank Trailer

1PMS5432851027992 · Trailer · TRAILER
Carriers run under3
23 mo
Inspections4
all-time
OOS inspections0
of 4
First seenAug 13, 2023
SD
Last seenJul 4, 2025
SD
Inspected under 3 different carriers in 23 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
1PMS5432851027992
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2005
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 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
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
S5432

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
2005 or 2035

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

North American serial sequence
027992

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 · 24 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 24 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
2005

Observed directly for this VIN via NHTSA vPIC.

Observed make
POLAR TANK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Polar Tank Trailer

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 · Aug 13, 2023 – Jul 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 4, 2025SDII · Walk-around0DAVID L SCHMIDT 1796422T594798/ND
Nov 20, 2024SDIII · Driver-only2DON JOHNSON 3087596T594798/ND
Jun 24, 2024SDIII · Driver-only1DAVID L SCHMIDT 1796422T403976/ND
Aug 13, 2023SDIII · Driver-only1DALLES HANNESTAD 434792T403976/ND
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DAVID L SCHMIDT1796422Jun 24, 2024Jul 4, 20252ND
DON JOHNSON3087596Nov 20, 2024Nov 20, 20241ND
DALLES HANNESTAD434792Aug 13, 2023Aug 13, 20231ND
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.
T594798NDDAVID L SCHMIDTJul 4, 2025Jul 4, 20251
T594798NDDON JOHNSONNov 20, 2024Nov 20, 20241
T403976NDDAVID L SCHMIDTJun 24, 2024Jun 24, 20241
T403976NDDALLES HANNESTADAug 13, 2023Aug 13, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026