Equipment unit · VIN-decoded · NHTSA vPIC

2014 Polar Tank Trailer

1PMA34226E5011799 · Trailer · TRAILER
Carriers run under3
30 mo
Inspections6
all-time
OOS inspections2
of 6
First seenJul 7, 2023
TX
Last seenJan 22, 2026
TX
Inspected under 3 different carriers in 30 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
1PMA34226E5011799
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2014
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
A3422

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1984 or 2014

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

North American serial sequence
011799

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 · 201 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 201 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
2014

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 7, 2023 – Jan 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 22, 2026TXII · Walk-around2WESTICO ENERGY LLC 3357960220B291/TX
Dec 16, 2025TXII · Walk-around2WESTICO ENERGY LLC 3357960220B291/TX
Apr 22, 2025TXI · Full3OOSWESTICO ENERGY LLC 3357960220B291/TX
May 15, 2024TXI · Full8OOSBIG PALM LOGISTICS LLC 3800628220B291/TX
Jul 18, 2023TXII · Walk-around4DIAMOND B OPERATING LLC 2120653037B966/TX
Jul 7, 2023TXII · Walk-around1DIAMOND B OPERATING LLC 2120653037B966/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WESTICO ENERGY LLC3357960Apr 22, 2025Jan 22, 20263TX
BIG PALM LOGISTICS LLC3800628May 15, 2024May 15, 20241TX
DIAMOND B OPERATING LLC2120653Jul 7, 2023Jul 18, 20232TX
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.
220B291TXWESTICO ENERGY LLCApr 22, 2025Jan 22, 20263
220B291TXBIG PALM LOGISTICS LLCMay 15, 2024May 15, 20241
037B966TXDIAMOND B OPERATING LLCJul 7, 2023Jul 18, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026