Equipment unit · VIN-decoded · NHTSA vPIC

2024 Polar Tank Trailer

3H6KA4427R3125754 · Trailer · TRAILER
Carriers run under1
23 mo
Inspections5
all-time
OOS inspections0
of 5
First seenNov 15, 2023
OK
Last seenOct 2, 2025
OK
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KA4427R3125754
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 29, 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
125754

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 · Nov 15, 2023 – Oct 2, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 2, 2025OKII · Walk-around0H2 SERVICES LLC 2545121CX1774/OK
Jul 21, 2025OKIII · Driver-only1H2 SERVICES LLC 2545121CX1774/OK
Mar 17, 2025OKI · Full0H2 SERVICES LLC 2545121CX1774/OK
Mar 14, 2025OKII · Walk-around0H2 SERVICES LLC 2545121CX1774/OK
Nov 15, 2023OKII · Walk-around0H2 SERVICES LLC 2545121CX1774/OK
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
H2 SERVICES LLC2545121Nov 15, 2023Oct 2, 20255OK
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.
CX1774OKH2 SERVICES LLCNov 15, 2023Oct 2, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026