Equipment unit · VIN-decoded · NHTSA vPIC

2013 West-Mark

1W9TE4027DA488115 · TRAILER
Carriers run under2
25 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJun 19, 2024
CA
Last seenJul 7, 2026
CA
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

VIN
1W9TE4027DA488115
Make
West-Mark
Model
Not decoded
Model year
2013
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
1W9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
TE402

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1983 or 2013

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

North American serial sequence
488115

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.

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
2013

Observed directly for this VIN via NHTSA vPIC.

Observed make
WEST-MARK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Jun 19, 2024 – Jul 7, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 7, 2026CAI · Full1SANDAIR CORPORATION 4937504MH7854/CA
Apr 28, 2026CAI · Full0SANDAIR CORPORATION 4937504MH7854/CA
Mar 23, 2026CAII · Walk-around1OOSORGANIC WEST MILK TRANSPORT INC 28301294MH7854/CA
Jun 19, 2024CAII · Walk-around0SANDAIR CORPORATION 4937504MH7854/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SANDAIR CORPORATION493750Jun 19, 2024Jul 7, 20263CA
ORGANIC WEST MILK TRANSPORT INC2830129Mar 23, 2026Mar 23, 20261CA
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.
4MH7854CA2SANDAIR CORPORATIONJun 19, 2024Jul 7, 20263
4MH7854CAORGANIC WEST MILK TRANSPORT INCMar 23, 2026Mar 23, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026