Equipment unit · VIN-decoded · NHTSA vPIC

1PMKR4320M1113123

Not yet decoded
Carriers run under2
8 mo
Inspections2
all-time
OOS inspections0
of 2
First seenJul 22, 2025
NE
Last seenMar 19, 2026
IA
Inspected under 2 different carriers in 8 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
KR432

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1991 or 2021

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

North American serial sequence
113123

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 · 159 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 159 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 · Jul 22, 2025 – Mar 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 19, 2026IAIII · Driver-only1SCHROEDER TRUCKING CORP 721128MH6596/IA
Jul 22, 2025NEIII · Driver-only2BRYAN HAUXWELL TRUCKING INC 624819289920/NE
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SCHROEDER TRUCKING CORP721128Mar 19, 2026Mar 19, 20261IA
BRYAN HAUXWELL TRUCKING INC624819Jul 22, 2025Jul 22, 20251NE
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.
MH6596IASCHROEDER TRUCKING CORPMar 19, 2026Mar 19, 20261
289920NEBRYAN HAUXWELL TRUCKING INCJul 22, 2025Jul 22, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC