Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

1PMKA4420P7118118 · Trailer · TRAILER
Carriers run under1
35 mo
Inspections11
all-time
OOS inspections0
of 11
First seenJul 4, 2023
MI
Last seenJun 23, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMKA4420P7118118
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
KA442

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1993 or 2023

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

North American serial sequence
118118

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 · 387 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 387 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
2023

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 4, 2023 – Jun 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 23, 2026TXII · Walk-around2ALLIANCE TANK LINES LLC 270666J934487/LA
Nov 28, 2025TXI · Full1ALLIANCE TANK LINES LLC 270666J934487/LA
Aug 19, 2025OKII · Walk-around3ALLIANCE TANK LINES LLC 270666J934487/LA
Jul 22, 2025MOII · Walk-around1ALLIANCE TANK LINES LLC 270666J934487/LA
Dec 17, 2024ARI · Full0ALLIANCE TANK LINES LLC 270666J934487/LA
May 21, 2024KSI · Full0ALLIANCE TANK LINES LLC 270666J934487/LA
May 3, 2024LAIII · Driver-only0ALLIANCE TANK LINES LLC 270666J934487/LA
Jan 14, 2024NMIII · Driver-only1ALLIANCE TANK LINES LLC 270666J934487/LA
Jan 14, 2024NMIII · Driver-only1ALLIANCE TANK LINES LLC 270666J934487/LA
Jan 12, 2024NMII · Walk-around1ALLIANCE TANK LINES LLC 270666J934487/LA
Jul 4, 2023MIIII · Driver-only1ALLIANCE TANK LINES LLC 270666J934487/LA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALLIANCE TANK LINES LLC270666Jul 4, 2023Jun 23, 202611LA
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.
J934487LA2ALLIANCE TANK LINES LLCJul 4, 2023Jun 23, 202611
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026