Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

3H6KF4326P3116625 · Trailer · TRAILER
Carriers run under1
19 mo
Inspections6
all-time
OOS inspections1
of 6
First seenDec 29, 2023
KS
Last seenJul 3, 2025
KS
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KF4326P3116625
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 24, 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
3H6

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KF432

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

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
116625

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 · 415 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 415 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 · Dec 29, 2023 – Jul 3, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 3, 2025KSII · Walk-around6PREFERRED TANK LINES LLC 2316473J257885/LA
May 26, 2025OKIII · Driver-only0PREFERRED TANK LINES LLC 2316473J257885/LA
May 6, 2025OKI · Full1OOSPREFERRED TANK LINES LLC 2316473J257885/LA
Jul 4, 2024ARIII · Driver-only2PREFERRED TANK LINES LLC 2316473J920147/LA
Jan 25, 2024TXII · Walk-around0PREFERRED TANK LINES LLC 2316473J920146/LA
Dec 29, 2023KSII · Walk-around1PREFERRED TANK LINES LLC 2316473J920147/LA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PREFERRED TANK LINES LLC2316473Dec 29, 2023Jul 3, 20256LA
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.
J257885LAPREFERRED TANK LINES LLCMay 6, 2025Jul 3, 20253
J920147LAPREFERRED TANK LINES LLCDec 29, 2023Jul 4, 20242
J920146LAPREFERRED TANK LINES LLCJan 25, 2024Jan 25, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026