Equipment unit · VIN-decoded · NHTSA vPIC

1996 Polar Tank Trailer

1PMS3422XT1017730 · Trailer · TRAILER
Carriers run under2
2 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJun 2, 2026
TX
Last seenAug 1, 2026
TX
Inspected under 2 different carriers in 2 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
1PMS3422XT1017730
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1996
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 6, 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
S3422

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1996 or 2026

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

North American serial sequence
017730

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 · 246 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 246 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
1996

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 · Jun 2, 2026 – Aug 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 1, 2026TXII · Walk-around2TRANSPORTES SAL-AVE SA DE CV 6103777461LI/OK
Jun 12, 2026VAII · Walk-around4LIQUID TRANSPORT CORP 708927461LI/OK
Jun 2, 2026TXII · Walk-around3OOSLIQUID TRANSPORT CORP 708927461LI/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES SAL-AVE SA DE CV610377Aug 1, 2026Aug 1, 20261TA
LIQUID TRANSPORT CORP70892Jun 2, 2026Jun 12, 20262IN
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.
7461LIOK2TRANSPORTES SAL-AVE SA DE CVAug 1, 2026Aug 1, 20261
7461LIOK2LIQUID TRANSPORT CORPJun 2, 2026Jun 12, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 6, 2026