Equipment unit · VIN-decoded · NHTSA vPIC

1W9TE4021CA488206

Not yet decoded
Carriers run under2
10 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJun 20, 2025
NV
Last seenApr 24, 2026
OR
Inspected under 2 different carriers in 10 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
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1982 or 2012

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

North American serial sequence
488206

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 · Jun 20, 2025 – Apr 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 24, 2026ORIII · Driver-only8OOSAYG TRANSPORT LLC 4020226TP3828/ID
Jun 20, 2025NVIII · Driver-only1IDAHO MILK TRANSPORT LLC 303084TP3828/ID
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AYG TRANSPORT LLC4020226Apr 24, 2026Apr 24, 20261ID
IDAHO MILK TRANSPORT LLC303084Jun 20, 2025Jun 20, 20251ID
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.
TP3828IDAYG TRANSPORT LLCApr 24, 2026Apr 24, 20261
TP3828IDIDAHO MILK TRANSPORT LLCJun 20, 2025Jun 20, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC