Equipment unit · VIN-decoded · NHTSA vPIC

1W9TE4024FA488124

Not yet decoded
Carriers run under2
12 mo
Inspections2
all-time
OOS inspections1
of 2
First seenMar 15, 2024
CA
Last seenMar 4, 2025
AZ
Inspected under 2 different carriers in 12 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
1W9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
TE402

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1985 or 2015

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

North American serial sequence
488124

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
WEST-MARK

Prefix basis · 39 decoded VINs at 100.0% prefix purity.

Model
Certified Stainless Services, Inc dba West-Mark

Prefix basis · 39 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 · Mar 15, 2024 – Mar 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 4, 2025AZIII · Driver-only4OOSJUSTIN W MCMILLIAN 3607747TJ4284/ID
Mar 15, 2024CAI · Full0WESTERN TANK LINES INC 2909026TJ4284/ID
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JUSTIN W MCMILLIAN3607747Mar 4, 2025Mar 4, 20251CA
WESTERN TANK LINES INC2909026Mar 15, 2024Mar 15, 20241ID
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.
TJ4284IDJUSTIN W MCMILLIANMar 4, 2025Mar 4, 20251
TJ4284IDWESTERN TANK LINES INCMar 15, 2024Mar 15, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC