Equipment unit · VIN-decoded · NHTSA vPIC

3H6KL4328S3168050

Not yet decoded
Carriers run under2
9 mo
Inspections2
all-time
OOS inspections1
of 2
First seenSep 16, 2025
AZ
Last seenJun 15, 2026
AZ
Inspected under 2 different carriers in 9 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
KL432

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
168050

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 · 70 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 70 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 16, 2025 – Jun 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 15, 2026AZII · Walk-around1OOSJR2021 TRUCKING LLC 3717080PHA8MY/AZ
Sep 16, 2025AZII · Walk-around2D&M TRANSPORTATION LLC 3844345PHA8MY/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JR2021 TRUCKING LLC3717080Jun 15, 2026Jun 15, 20261AZ
D&M TRANSPORTATION LLC3844345Sep 16, 2025Sep 16, 20251AZ
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.
PHA8MYAZ2JR2021 TRUCKING LLCJun 15, 2026Jun 15, 20261
PHA8MYAZD&M TRANSPORTATION LLCSep 16, 2025Sep 16, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC