Equipment unit · VIN-decoded · NHTSA vPIC

1PMS24521H1048323

Not yet decoded
Carriers run under2
11 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJun 16, 2023
WI
Last seenMay 8, 2024
AL
Inspected under 2 different carriers in 11 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
S2452

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1987 or 2017

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

North American serial sequence
048323

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 · 61 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 61 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 · Jun 16, 2023 – May 8, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
May 8, 2024ALI · Full3OOSASSOCIATED PETROLEUM CARRIERS INC 104701926737ST/IL
Jun 16, 2023WIII · Walk-around0CONVENIENCE TRANSPORTATION LLC 775476716599/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ASSOCIATED PETROLEUM CARRIERS INC104701May 8, 2024May 8, 20241SC
CONVENIENCE TRANSPORTATION LLC775476Jun 16, 2023Jun 16, 20231WI
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.
926737STILASSOCIATED PETROLEUM CARRIERS INCMay 8, 2024May 8, 20241
716599WICONVENIENCE TRANSPORTATION LLCJun 16, 2023Jun 16, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC