Equipment unit · VIN-decoded · NHTSA vPIC

2012 Polar Tank Trailer

1PMA34226C5010343 · Trailer · TRAILER
Carriers run under2
25 mo
Inspections8
all-time
OOS inspections3
of 8
First seenDec 26, 2023
TX
Last seenJan 21, 2026
TX
Inspected under 2 different carriers in 25 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
1PMA34226C5010343
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 21, 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
1982 or 2012

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

North American serial sequence
010343

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
2012

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 · Dec 26, 2023 – Jan 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 21, 2026TXI · Full0MARTIN DIAZ RAMIREZ 3413911212C577/TX
Jan 3, 2026TXI · Full7OOSBLACK LIQUID CARRIERS LLC 353000984Z165W/TX
Nov 4, 2025USI · Full7BLACK LIQUID CARRIERS LLC 3530009212C577/TX
May 1, 2025TXII · Walk-around7BLACK LIQUID CARRIERS LLC 3530009212C577/TX
Apr 7, 2025USI · Full2BLACK LIQUID CARRIERS LLC 3530009212C577/TX
Jan 3, 2024TXII · Walk-around2OOSBLACK LIQUID CARRIERS LLC 3530009212C577/TX
Dec 29, 2023TXI · Full5OOSMARTIN DIAZ RAMIREZ 3413911212C577/TX
Dec 26, 2023TXIII · Driver-only0BLACK LIQUID CARRIERS LLC 3530009212C577/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARTIN DIAZ RAMIREZ3413911Dec 29, 2023Jan 21, 20262TA
BLACK LIQUID CARRIERS LLC3530009Dec 26, 2023Jan 3, 20266TX
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.
212C577TXMARTIN DIAZ RAMIREZDec 29, 2023Jan 21, 20262
84Z165WTXBLACK LIQUID CARRIERS LLCJan 3, 2026Jan 3, 20261
212C577TXBLACK LIQUID CARRIERS LLCDec 26, 2023Nov 4, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026