Equipment unit · VIN-decoded · NHTSA vPIC

3H6KR4321N3115080

Not yet decoded
Carriers run under2
25 mo
Inspections2
all-time
OOS inspections1
of 2
First seenSep 22, 2023
NY
Last seenOct 22, 2025
NY
Inspected under 2 different carriers in 25 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
1992 or 2022

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

North American serial sequence
115080

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 · Sep 22, 2023 – Oct 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2025NYII · Walk-around2OOSMLD TRANSPORTATION LLC 19195993139465/NY
Sep 22, 2023NYIII · Driver-only0T R D TRUCKING INC 19484172953451/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MLD TRANSPORTATION LLC1919599Oct 22, 2025Oct 22, 20251IN
T R D TRUCKING INC1948417Sep 22, 2023Sep 22, 20231IA
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.
3139465NYMLD TRANSPORTATION LLCOct 22, 2025Oct 22, 20251
2953451MET R D TRUCKING INCSep 22, 2023Sep 22, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC