Equipment unit · VIN-decoded · NHTSA vPIC

2011 West-Mark Certified Stainless Services, Inc dba West-Mark

1W9TE402XBA488154 · Trailer · TRAILER
Carriers run under1
27 mo
Inspections7
all-time
OOS inspections2
of 7
First seenDec 7, 2023
CA
Last seenMar 3, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1W9TE402XBA488154
Make
West-Mark
Model
Certified Stainless Services, Inc dba West-Mark
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 20, 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
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1981 or 2011

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

North American serial sequence
488154

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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
WEST-MARK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Certified Stainless Services, Inc dba West-Mark

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

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 · Dec 7, 2023 – Mar 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 3, 2026CAIII · Driver-only0RICHARD IEST DAIRY INC 2804556IESTT9/CA
Feb 23, 2026CAI · Full2OOSRICHARD IEST DAIRY INC 2804556IESTT9/CA
Dec 18, 2024CAI · Full1RICHARD IEST DAIRY INC 2804556IESTT9/CA
Sep 21, 2024CAIII · Driver-only0RICHARD IEST DAIRY INC 2804556IESTT9/CA
Aug 14, 2024CAI · Full1RICHARD IEST DAIRY INC 2804556IESTT9/CA
May 20, 2024CAI · Full4OOSRICHARD IEST DAIRY INC 2804556IESTT9/CA
Dec 7, 2023CAI · Full0RICHARD IEST DAIRY INC 2804556IESTT9/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RICHARD IEST DAIRY INC2804556Dec 7, 2023Mar 3, 20267CA
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.
IESTT9CARICHARD IEST DAIRY INCDec 7, 2023Mar 3, 20267
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026