Equipment unit · VIN-decoded · NHTSA vPIC

1997 Polar Tank Trailer

1PMS33727V1018338 · Trailer · TRAILER
Carriers run under2
34 mo
Inspections4
all-time
OOS inspections0
of 4
First seenAug 1, 2023
TX
Last seenJun 17, 2026
US
Inspected under 2 different carriers in 34 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
1PMS33727V1018338
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1997
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 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
S3372

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1997 or 2027

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

North American serial sequence
018338

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 · 3 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 3 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
1997

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 · Aug 1, 2023 – Jun 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 17, 2026USI · Full1CTL INTERNACIONALES SA DE CV 2996268263B764/TX
Jun 4, 2025TXII · Walk-around0CTL INTERNACIONALES SA DE CV 299626853S163N/TX
Sep 6, 2023TXI · Full0TRANSPORTES INTERNACIONALES CBL SA DE CV 1683487T543139/IL
Aug 1, 2023TXI · Full4TRANSPORTES INTERNACIONALES CBL SA DE CV 1683487T543139/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CTL INTERNACIONALES SA DE CV2996268Jun 4, 2025Jun 17, 20262TA
TRANSPORTES INTERNACIONALES CBL SA DE CV1683487Aug 1, 2023Sep 6, 20232TA
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.
263B764TX2CTL INTERNACIONALES SA DE CVJun 17, 2026Jun 17, 20261
53S163NTXCTL INTERNACIONALES SA DE CVJun 4, 2025Jun 4, 20251
T543139ILTRANSPORTES INTERNACIONALES CBL SA DE CVAug 1, 2023Sep 6, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026