Equipment unit · VIN-decoded · NHTSA vPIC

2020 Polar Tank Trailer

1PMKA4523L7108448 · Trailer · TRAILER
Carriers run under2
27 mo
Inspections6
all-time
OOS inspections1
of 6
First seenNov 1, 2023
IL
Last seenFeb 27, 2026
AR
Inspected under 2 different carriers in 27 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
1PMKA4523L7108448
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2020
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
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KA452

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1990 or 2020

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

North American serial sequence
108448

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 · 117 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 117 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
2020

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 · Nov 1, 2023 – Feb 27, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 27, 2026ARII · Walk-around0WOC TRUCKING LLC 2039668PT245364/AR
Aug 15, 2025ARII · Walk-around1WOC TRUCKING LLC 2039668PT245364/AR
Jun 11, 2025MOII · Walk-around0WOC TRUCKING LLC 2039668PT245364/AR
Apr 25, 2025ARIII · Driver-only1WOC TRUCKING LLC 2039668PT245364/AR
Jun 10, 2024IAII · Walk-around7OOSDIMMITT TRANSFER INC 2803923625233ST/IL
Nov 1, 2023ILII · Walk-around0DIMMITT TRANSFER INC 2803923625233ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WOC TRUCKING LLC2039668Apr 25, 2025Feb 27, 20264AR
DIMMITT TRANSFER INC2803923Nov 1, 2023Jun 10, 20242IL
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.
PT245364ARWOC TRUCKING LLCApr 25, 2025Feb 27, 20264
625233STILDIMMITT TRANSFER INCNov 1, 2023Jun 10, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026