Equipment unit · VIN-decoded · NHTSA vPIC

1992 Polar Tank Trailer

1PMB14326N2011487 · Trailer · TRAILER
Carriers run under2
9 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJul 20, 2025
TX
Last seenApr 19, 2026
TX
Inspected under 2 different carriers in 9 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
1PMB14326N2011487
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1992
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
B1432

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1992 or 2022

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

North American serial sequence
011487

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 · 10 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 10 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
1992

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 · Jul 20, 2025 – Apr 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 19, 2026TXII · Walk-around2NORTH LAND TEXAS SERVICES INC 3632441252C614/TX
Feb 22, 2026TXII · Walk-around4OOSNORTH LAND TEXAS SERVICES INC 3632441252C614/TX
Oct 27, 2025TXII · Walk-around0TEX SAND TRANSPORT LLC 3020065252C614/TX
Jul 20, 2025TXIII · Driver-only0NORTH LAND TEXAS SERVICES INC 3632441252C614/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NORTH LAND TEXAS SERVICES INC3632441Jul 20, 2025Apr 19, 20263TX
TEX SAND TRANSPORT LLC3020065Oct 27, 2025Oct 27, 20251TX
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.
252C614TXNORTH LAND TEXAS SERVICES INCJul 20, 2025Apr 19, 20263
252C614TXTEX SAND TRANSPORT LLCOct 27, 2025Oct 27, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026