Equipment unit · NHTSA vPIC identity

2023 Polar Tank Trailer

3H6KR4321P3117012 · Trailer · TRAILER
Carriers run under3
18 mo
Inspections3
all-time
OOS inspections0
of 3
First seenDec 29, 2024
KS
Last seenJun 3, 2026
IA
Inspected under 3 different carriers in 18 months
These observations show where this VIN appeared, not who owned the vehicle. Sales, leases or owner-operator moves may explain carrier changes. A shared VIN alone is not a fraud finding. Compare dates and sources in the timeline below.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KR4321P3117012
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 5, 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
KR432

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
117012

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 · 69 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 69 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.

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, 2024 – Jun 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 3, 2026IAII · Walk-around6—FREIBURGER AND SONS TRANSPORTATION LLC 1964695SP183UYT/IN
May 2, 2025KSIII · Driver-only2—EVANS CHOPPING LLC 3251547707103/KS
Dec 29, 2024KSII · Walk-around0—SOLKO BROTHERS LLC 1290348707103/KS
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FREIBURGER AND SONS TRANSPORTATION LLC1964695Jun 3, 2026Jun 3, 20261IN
EVANS CHOPPING LLC3251547May 2, 2025May 2, 20251KS
SOLKO BROTHERS LLC1290348Dec 29, 2024Dec 29, 20241KS
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.
SP183UYTIN—FREIBURGER AND SONS TRANSPORTATION LLCJun 3, 2026 → Jun 3, 20261
707103KS—EVANS CHOPPING LLCMay 2, 2025 → May 2, 20251
707103KS—SOLKO BROTHERS LLCDec 29, 2024 → Dec 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 5, 2026