Equipment unit · VIN-decoded · NHTSA vPIC

2024 Polar Tank Trailer

3H6KA4427R3124409 · Trailer · TRAILER
Carriers run under1
29 mo
Inspections10
all-time
OOS inspections0
of 10
First seenFeb 6, 2024
MS
Last seenJul 31, 2026
MS
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KA4427R3124409
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2024
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
3H6

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KA442

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1994 or 2024

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

North American serial sequence
124409

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 · 84 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 84 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
2024

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 · Feb 6, 2024 – Jul 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 31, 2026MSII · Walk-around0COOK OIL COMPANY INC 2331992166443A/MS
May 19, 2026MSI · Full0COOK OIL COMPANY INC 2331992166443A/MS
Apr 30, 2026TNIII · Driver-only0COOK OIL COMPANY INC 2331992166443A/MS
Feb 17, 2026MSI · Full1COOK OIL COMPANY INC 2331992166443A/MS
Feb 13, 2026TNII · Walk-around0COOK OIL COMPANY INC 2331992166443A/MS
Mar 22, 2025MSII · Walk-around0COOK OIL COMPANY INC 2331992166443A/MS
Jan 27, 2025MSII · Walk-around0COOK OIL COMPANY INC 2331992166443A/MS
Oct 11, 2024TNII · Walk-around2COOK OIL COMPANY INC 2331992166443A/MS
May 28, 2024MSII · Walk-around0COOK OIL COMPANY INC 2331992166443A/MS
Feb 6, 2024MSI · Full0COOK OIL COMPANY INC 2331992166443A/MS
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COOK OIL COMPANY INC2331992Feb 6, 2024Jul 31, 202610MS
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.
166443AMS2COOK OIL COMPANY INCFeb 6, 2024Jul 31, 202610
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026