Equipment unit · VIN-decoded · NHTSA vPIC

2025 Polar Tank Trailer

3H6KA4423S3132996 · Trailer · TRAILER
Carriers run under1
20 mo
Inspections8
all-time
OOS inspections2
of 8
First seenAug 28, 2024
NE
Last seenApr 13, 2026
IA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KA4423S3132996
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 18, 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
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1995 or 2025

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

North American serial sequence
132996

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
2025

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 · Aug 28, 2024 – Apr 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 13, 2026IAI · Full0C H WILSON TRANSPORT INC 98221FY8562/IA
Sep 18, 2025NEII · Walk-around4OOSC H WILSON TRANSPORT INC 98221FT8562/IA
Jun 20, 2025NEII · Walk-around1OOSC H WILSON TRANSPORT INC 98221FY8562/IA
May 14, 2025IAI · Full0C H WILSON TRANSPORT INC 98221FY8562/IA
Mar 3, 2025NEI · Full3C H WILSON TRANSPORT INC 98221FY8562/IA
Jan 7, 2025NEI · Full0C H WILSON TRANSPORT INC 98221FY8562/IA
Oct 18, 2024IAI · Full0C H WILSON TRANSPORT INC 98221FY8562/IA
Aug 28, 2024NEI · Full0C H WILSON TRANSPORT INC 98221D682458/KS
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C H WILSON TRANSPORT INC98221Aug 28, 2024Apr 13, 20268IA
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.
FY8562IAC H WILSON TRANSPORT INCOct 18, 2024Apr 13, 20266
FT8562IAC H WILSON TRANSPORT INCSep 18, 2025Sep 18, 20251
D682458KSC H WILSON TRANSPORT INCAug 28, 2024Aug 28, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026