Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

3H6KR4323P3120770 · Trailer · TRAILER
Carriers run under3
33 mo
Inspections3
all-time
OOS inspections2
of 3
First seenJul 18, 2023
NV
Last seenApr 30, 2026
WA
Inspected under 3 different carriers in 33 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KR4323P3120770
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
3 · valid

Deterministic · position 9; calculated value 3.

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
120770

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.

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 · Jul 18, 2023 – Apr 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 30, 2026WAII · Walk-around6OOSSHANE HEYREND 587678TS8532/ID
Jul 9, 2024NMII · Walk-around2OOSINGLIN BROTHERS LLC 3876632TS8532/ID
Jul 18, 2023NVIII · Driver-only0FMI TRANSPORTATION LLC 1207031TS8532/ID
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SHANE HEYREND587678Apr 30, 2026Apr 30, 20261ID
INGLIN BROTHERS LLC3876632Jul 9, 2024Jul 9, 20241ID
FMI TRANSPORTATION LLC1207031Jul 18, 2023Jul 18, 20231ID
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.
TS8532IDSHANE HEYRENDApr 30, 2026Apr 30, 20261
TS8532IDINGLIN BROTHERS LLCJul 9, 2024Jul 9, 20241
TS8532IDFMI TRANSPORTATION LLCJul 18, 2023Jul 18, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 5, 2026