Equipment unit · VIN-decoded · NHTSA vPIC

1995 Polar Tank Trailer

1PMS44320S1014538 · Trailer · TRAILER
Carriers run under2
12 mo
Inspections16
all-time
OOS inspections2
of 16
First seenMar 10, 2025
US
Last seenMar 23, 2026
US
Inspected under 2 different carriers in 12 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
1PMS44320S1014538
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1995
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
S4432

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1995 or 2025

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

North American serial sequence
014538

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 · 39 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 39 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
1995

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 · Mar 10, 2025 – Mar 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 23, 2026USII · Walk-around1TRANSPORTES L GALLEGOS LLC 4414506VGA7JD/AZ
Feb 13, 2026USII · Walk-around2OOSTRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Nov 6, 2025USII · Walk-around3TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Oct 27, 2025USII · Walk-around5OOSTRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Oct 6, 2025USII · Walk-around0TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Sep 24, 2025USII · Walk-around1TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Jul 31, 2025USII · Walk-around0TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Jul 11, 2025USII · Walk-around1TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Jul 1, 2025USII · Walk-around3TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
May 30, 2025USI · Full11TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
May 15, 2025USII · Walk-around0TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
May 6, 2025USIII · Driver-only0TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Mar 26, 2025USII · Walk-around0TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Mar 18, 2025USII · Walk-around2TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Mar 13, 2025USII · Walk-around3TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
Mar 10, 2025USII · Walk-around3TRANSPORTES J J GALLEGOS 2312810VGA7JD/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES L GALLEGOS LLC4414506Mar 23, 2026Mar 23, 20261AZ
TRANSPORTES J J GALLEGOS2312810Mar 10, 2025Feb 13, 202615AZ
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.
VGA7JDAZ2TRANSPORTES L GALLEGOS LLCMar 23, 2026Mar 23, 20261
VGA7JDAZTRANSPORTES J J GALLEGOSMar 10, 2025Feb 13, 202615
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026